The 17th international conference and exhibition of integrated circuit is the electronic industry's annual important event. I visit it at the first day of the exhibition.
On my arrival I went to Hqew.net booth to support my colleges! HQEW.net showed its ISCP at IIC-China 2012. Loads of people crowed in the booth, asking question about Hqew.net and its ISCP.
The IIC-China 2012 mainly focuses on IC design and manufacturing. In the exhibition, there are many famous manufacturers, which is highly competitive. One of the biggest attractions is a famous company gave away a Mercedes SMART car, that value over 100000 Yuan.
The IR booth featured the latest solutions for a diverse range of applications including lighting, automotive and motor control. Their products and platforms on displayed the latest ICs for LED lighting and AC-DC switch mode power supplies (SMPS), power MOSFETs and IGBTs integrated design platform for variable speed motor drives.
My main purpose is not to draw the price, but to collect some useful information, and a great chance to communicate with the famous manufacturers, therefore to understand the industry new trends. I had exchange business cards with some exhibitors and will stay in touch later on.
There is great news I would like to disclose at here: As a foreign suppliers you can join HQEW.net and reach buyers all over the world. For more details you can contact me - Amy Wu at: wujian@hqew.net .
Wednesday, February 29, 2012
Direct Control of LED Current Boost Converter
To control the current of white LED white LED current detection, detection of white LED current is the easiest and most convenient way is to use a sense resistor in series with the white LED, the total output voltage of such a converter is white LED forward voltage and current-sense resistor and pressure drop. To simplify the circuit and reduce costs, designed to make the best sense resistor feedback voltage of the voltage drop across resistor selected converter. Galvanometer voltage drop across the resistor should be as small as possible, so as to minimize power consumption, too high a voltage will only increase the power consumption. White LED forward voltage and current-sense resistor voltage drop of usually higher than the mobile phone battery voltage, therefore, must use a boost converter to provide power. Assume that the converter's feedback voltage is 500mV, the total output voltage must be between 4.1 ~ 4.3V. Direct control of the white LED current boost converter shown in Fig.
AD9279 - Octal LNA/VGA/AAF/ADC and CW I/Q Demodulator
The AD9279 is designed for low cost, low power, small size, and ease of use for medical ultrasound and automotive radar. It contains eight channels of a variable gain amplifier (VGA) with a low noise preamplifier (LNA), an antialiasing filter (AAF), an analog-to-digital converter (ADC), and an I/Q demodulator with programmable phase rotation.
Each channel features a variable gain range of 45 dB, a fully differential signal path, an active input preamplifier termination, and a maximum gain of up to 52 dB. The channel is optimized for high dynamic performance and low power in applications where a small package size is critical.
The LNA has a single-ended-to-differential gain that is selectable through the SPI. Assuming a 15 MHz noise bandwidth (NBW) and a 21.3 dB LNA gain, the LNA input SNR is roughly 94 dB. In CW Doppler mode, each LNA output drives an I/Q demod-ulator that has independently programmable phase rotation with 16 phase settings.
Power-down of individual channels is supported to increase battery life for portable applications. Standby mode allows quick power-up for power cycling. In CW Doppler operation, the VGA, AAF, and ADC are powered down. The ADC contains several features designed to maximize flexibility and minimize system cost, such as a programmable clock, data alignment, and programmable digital test pattern generation. The digital test patterns include built-in fixed patterns, built-in pseudo random patterns, and custom user-defined test patterns entered via the serial port interface.
AD9279 Main Features:
1. 8 channels of LNA, VGA, AAF, ADC, and I/Q demodulator
2. Low power: 141 mW per channel, TGC mode, 40 MSPS;
3. 60 mW per channel, CW mode
4. 10 mm × 10 mm, 144-ball CSP-BGA
5. TGC channel input-referred noise: 0.8 nV/√Hz, max gain
6. Flexible power-down modes
7. Fast recovery from low power standby mode: <2 μs
8. Overload recovery: <10 ns
9. Low noise preamplifier (LNA)
10. Input-referred noise: 0.75 nV/√Hz, gain = 21.3 dB
11. Programmable gain: 15.6 dB/17.9 dB/21.3 dB
12. 0.1 dB compression: 1000 mV p-p/ 750 mV p-p/450 mV p-p
13. Dual-mode active input impedance matching
14. Bandwidth (BW): >100 MHz
15. Variable gain amplifier (VGA)
16. Attenuator range: 45 dB to 0 dB
17. Postamp gain (PGA): 21 dB/24 dB/27 dB/30 dB
18. Linear-in-dB gain control
19. Antialiasing filter (AAF)
20. Programmable second-order LPF from 8 MHz to 18 MHz
21. Programmable HPF
22. Analog-to-digital converter (ADC)
23. SNR: 70 dB, 12 bits up to 80 MSPS
24. Serial LVDS (ANSI-644, low power/reduced signal)
25. CW mode I/Q demodulator
26. Individual programmable phase rotation
27. Output dynamic range per channel: >160 dBc/√Hz
28. Output-referred SNR: 155 dBc/√Hz,1 kHz offset,3 dBFS
Figure 1: AD9279 Functional Block Diagram
Figure 2: AD9279 Single Simplified Block Diagram
Figure 3: AD9279 Simplifies Block Diagram of the Ultrasound System
Figure 4: AD9279 Transformer-coupled Differential Clock Circuit
Figure 5: AD9279 Differential PECL Sampling Clock Circuit
Figure 6: AD9279 Differential LVDS Sampling Clock Circuit
Figure 7: AD9279 Single-ended 1.8V CMOS Sampling Clock Circuit
Figure 8: AD9279 Single-ended 3.3V CMOS Sampling Clock Circuit
Figure 9: AD9279 CW Mode I / O Output Interface to Connect a Typical Circuit
Each channel features a variable gain range of 45 dB, a fully differential signal path, an active input preamplifier termination, and a maximum gain of up to 52 dB. The channel is optimized for high dynamic performance and low power in applications where a small package size is critical.
The LNA has a single-ended-to-differential gain that is selectable through the SPI. Assuming a 15 MHz noise bandwidth (NBW) and a 21.3 dB LNA gain, the LNA input SNR is roughly 94 dB. In CW Doppler mode, each LNA output drives an I/Q demod-ulator that has independently programmable phase rotation with 16 phase settings.
Power-down of individual channels is supported to increase battery life for portable applications. Standby mode allows quick power-up for power cycling. In CW Doppler operation, the VGA, AAF, and ADC are powered down. The ADC contains several features designed to maximize flexibility and minimize system cost, such as a programmable clock, data alignment, and programmable digital test pattern generation. The digital test patterns include built-in fixed patterns, built-in pseudo random patterns, and custom user-defined test patterns entered via the serial port interface.
AD9279 Main Features:
1. 8 channels of LNA, VGA, AAF, ADC, and I/Q demodulator
2. Low power: 141 mW per channel, TGC mode, 40 MSPS;
3. 60 mW per channel, CW mode
4. 10 mm × 10 mm, 144-ball CSP-BGA
5. TGC channel input-referred noise: 0.8 nV/√Hz, max gain
6. Flexible power-down modes
7. Fast recovery from low power standby mode: <2 μs
8. Overload recovery: <10 ns
9. Low noise preamplifier (LNA)
10. Input-referred noise: 0.75 nV/√Hz, gain = 21.3 dB
11. Programmable gain: 15.6 dB/17.9 dB/21.3 dB
12. 0.1 dB compression: 1000 mV p-p/ 750 mV p-p/450 mV p-p
13. Dual-mode active input impedance matching
14. Bandwidth (BW): >100 MHz
15. Variable gain amplifier (VGA)
16. Attenuator range: 45 dB to 0 dB
17. Postamp gain (PGA): 21 dB/24 dB/27 dB/30 dB
18. Linear-in-dB gain control
19. Antialiasing filter (AAF)
20. Programmable second-order LPF from 8 MHz to 18 MHz
21. Programmable HPF
22. Analog-to-digital converter (ADC)
23. SNR: 70 dB, 12 bits up to 80 MSPS
24. Serial LVDS (ANSI-644, low power/reduced signal)
25. CW mode I/Q demodulator
26. Individual programmable phase rotation
27. Output dynamic range per channel: >160 dBc/√Hz
28. Output-referred SNR: 155 dBc/√Hz,1 kHz offset,3 dBFS
Figure 1: AD9279 Functional Block Diagram
Figure 2: AD9279 Single Simplified Block Diagram
Figure 3: AD9279 Simplifies Block Diagram of the Ultrasound System
Figure 4: AD9279 Transformer-coupled Differential Clock Circuit
Figure 5: AD9279 Differential PECL Sampling Clock Circuit
Figure 6: AD9279 Differential LVDS Sampling Clock Circuit
Figure 7: AD9279 Single-ended 1.8V CMOS Sampling Clock Circuit
Figure 8: AD9279 Single-ended 3.3V CMOS Sampling Clock Circuit
Figure 9: AD9279 CW Mode I / O Output Interface to Connect a Typical Circuit
Sunday, February 26, 2012
CP2101 (2102) Characteristics and Application
CP2101 (CP2102) is the American Silicon Products, is a highly integrated USB to UART functionality and minimal PCB space can provide a simple solution to a dedicated chip, CP2101 includes USB2.0 full-speed function controller, USB transceiver, clock, EEPROM and asynchronous serial data bus (UART) Full signal demodulation control, no external USB devices, package size is 5x5mm MLP-28.
Applications:
· Widely used RS232 to USB.
· Cellular Phone USB interface cable
· PDA USB interface cable
· USB to RS232 serial device suitable to accompany.
Virtual Serial Port Driver
· The existing serial applications.
· WINDOWS98/2000/XP operating system
· MAC OS-9
· WINDOWS CE.
· Linux 2.4.
CP2101 without an external clock oscillator, the external circuit is very simple, the manufacturer provides free of charge for Windows (including Windows CE), Linux, Mac OS-X and other operating system drivers, users do not need the device for secondary development , only installed the hardware and install drivers to use, CP2101 serial bus data format: 8 data bits, 1 stop bit, parity selectable no parity, odd parity, even the school experience supports the standard baud rates: 300,600,1200,1800,2400,4800,7200,9600,14400,19200,28800,38400,460800.921600 and so on.
Below is a USB-RS232 converter circuit, and we explain its principles are as follows:
CP2101-9 feet and 6 feet VDD so that there is a 4.7kR resistance, (R1), which is to increase the anti-jamming features and added, in order to reduce system power of resistance, the first 6 feet of indirectly VDD and ground filter capacitor 4.7uF (C3), capacitors C1, C2 is the stability of data transmission in order to enhance signal transmission to avoid interference of the word. CP2101 chip, while the bottom has large pieces of metal grounding piece, the goal is to shield interference with other data sources signal interference.
Driver Installation:
Windows98, WIndows2000 or Windows XP operating system, double-click CP2101x_VCP_Win2k_XP_S2k3.exe the executable file, you can enter the installation section, step by step, until the installation is complete. The driver installation is complete, check the USB adapter into the computer USB port, right single Click “My Computer” – “Properties” – “Hardware” – “Device Manager” – “port (LPT and COM)”, if you can see “CP210x USB to UART Broge Controller (COMx)” Information, the computer has found the device, to achieve a virtual serial port 3 (COM3), we can also modify some of the tools the default COM3 to COM port number, for example, the programmer default port number is COM1, right-click “CP210x USB to UART Brige Controller (COM3) “in the” Properties “-” Port Settings “-” Advanced “-” COM Port “box, select COM1, re-View Ports (COM & LPT) to see the success has been modified, after the Use this converter, the default port is COM1.
Applications:
· Widely used RS232 to USB.
· Cellular Phone USB interface cable
· PDA USB interface cable
· USB to RS232 serial device suitable to accompany.
Virtual Serial Port Driver
· The existing serial applications.
· WINDOWS98/2000/XP operating system
· MAC OS-9
· WINDOWS CE.
· Linux 2.4.
CP2101 without an external clock oscillator, the external circuit is very simple, the manufacturer provides free of charge for Windows (including Windows CE), Linux, Mac OS-X and other operating system drivers, users do not need the device for secondary development , only installed the hardware and install drivers to use, CP2101 serial bus data format: 8 data bits, 1 stop bit, parity selectable no parity, odd parity, even the school experience supports the standard baud rates: 300,600,1200,1800,2400,4800,7200,9600,14400,19200,28800,38400,460800.921600 and so on.
Below is a USB-RS232 converter circuit, and we explain its principles are as follows:
CP2101-9 feet and 6 feet VDD so that there is a 4.7kR resistance, (R1), which is to increase the anti-jamming features and added, in order to reduce system power of resistance, the first 6 feet of indirectly VDD and ground filter capacitor 4.7uF (C3), capacitors C1, C2 is the stability of data transmission in order to enhance signal transmission to avoid interference of the word. CP2101 chip, while the bottom has large pieces of metal grounding piece, the goal is to shield interference with other data sources signal interference.
USB-RS232 converter circuit
Driver Installation:
Windows98, WIndows2000 or Windows XP operating system, double-click CP2101x_VCP_Win2k_XP_S2k3.exe the executable file, you can enter the installation section, step by step, until the installation is complete. The driver installation is complete, check the USB adapter into the computer USB port, right single Click “My Computer” – “Properties” – “Hardware” – “Device Manager” – “port (LPT and COM)”, if you can see “CP210x USB to UART Broge Controller (COMx)” Information, the computer has found the device, to achieve a virtual serial port 3 (COM3), we can also modify some of the tools the default COM3 to COM port number, for example, the programmer default port number is COM1, right-click “CP210x USB to UART Brige Controller (COM3) “in the” Properties “-” Port Settings “-” Advanced “-” COM Port “box, select COM1, re-View Ports (COM & LPT) to see the success has been modified, after the Use this converter, the default port is COM1.
MVL-904MW Benifits, Features and Applications
MVL-904MW Benefits
- Fewer LEDs Required
- Lowers Lighting System Cost
- High Flux Output
- Designed for High Current Operation
- Low Thermal Resistance
- Low Profile
- Reliable
- Packaged in Tubes for Use with Automatic Insertion Equipment
- Automotive Exterior Lighting
- Electronic Signs and Signals
- Traffic Signal
- Sign
Hqew.net Highlights in The IIC-China Exhibition
The concern of the 17th International IC-China Conference and Exhibition held in Shenzhen Convention and Exhibition Centre on 23-25th February 2012 , and the participating enterprises are concentrated in the IC design and manufacturing. The most powerful and most complete online trading platform of China electronic components industry – hqew.com and hqew.net play the role of the leading company in the electronic service industry, who are highlight in the IIC-China show.
Hqew.net grand implementation of the ISCP Services on the show. It said that in order to reduce the transaction risk, reduce transaction costs, save transaction time, improve transaction efficiency and promote the transaction. Hqew.net launched In Stock Certified Program to upgrade the service project.
7 Advantages for Suppliers Win Business Opportunities
1. Product priorities– to ensure buyers find you quicker;
2. Exclusive– to increase the company’s brand credit, led to buyers to place orders;
3. Exclusive– the advantages of in stock goods for big business;
4. 360 ° Key promotion–your in stock all-round exposure;
5. Strict spot test system- where buyers purchase with trust;
6. Real-time inventory file upload– system priorities, inventory upload faster;
7. Exclusive services– offer online, customized services; timely and conveniently.
3 Main Reasons for Buyers cannot Refuse
1. Purchase With Trust
ISCP certified members have a high credit rating, these companies and their product information are more reliable and purchase with them means worries free.
2. Reduce Procurement Costs
ISCP is more real and effective because it is strict appraisal and supervision to ensure buyers can find product quicker, significantly saved buyer’s time and communication costs, increased trading efficiency eventually.
3. Time Saving for Purchase
ISCP in stock information priority listing, in stock sign is eye-catching, good for buyers to find the products they need right away.
More information about ISCP …
Hqew.net and hqew.com debut at the IIC-China Conference and Exhibition and offer the provision of powerful products and services, showing their close attention to the dynamics of the electronics industry to keep up with industry trends, provide information services and third-party platform. The exhibition not only shows hqer.net and hqew.com for more cutting-edge technology for the industrial chain of manufacturers, distributors and market information to build a bridge, also help customers to reduce transaction costs, to create a broader electronics industry chain prospects for Internet applications and promote confidence in the electronics industry.
Source: http://www.hqew.net/article/showdetails-article-2177.html
Hqew.net grand implementation of the ISCP Services on the show. It said that in order to reduce the transaction risk, reduce transaction costs, save transaction time, improve transaction efficiency and promote the transaction. Hqew.net launched In Stock Certified Program to upgrade the service project.
7 Advantages for Suppliers Win Business Opportunities
1. Product priorities– to ensure buyers find you quicker;
2. Exclusive– to increase the company’s brand credit, led to buyers to place orders;
3. Exclusive– the advantages of in stock goods for big business;
4. 360 ° Key promotion–your in stock all-round exposure;
5. Strict spot test system- where buyers purchase with trust;
6. Real-time inventory file upload– system priorities, inventory upload faster;
7. Exclusive services– offer online, customized services; timely and conveniently.
3 Main Reasons for Buyers cannot Refuse
1. Purchase With Trust
ISCP certified members have a high credit rating, these companies and their product information are more reliable and purchase with them means worries free.
2. Reduce Procurement Costs
ISCP is more real and effective because it is strict appraisal and supervision to ensure buyers can find product quicker, significantly saved buyer’s time and communication costs, increased trading efficiency eventually.
3. Time Saving for Purchase
ISCP in stock information priority listing, in stock sign is eye-catching, good for buyers to find the products they need right away.
More information about ISCP …
Hqew.net and hqew.com debut at the IIC-China Conference and Exhibition and offer the provision of powerful products and services, showing their close attention to the dynamics of the electronics industry to keep up with industry trends, provide information services and third-party platform. The exhibition not only shows hqer.net and hqew.com for more cutting-edge technology for the industrial chain of manufacturers, distributors and market information to build a bridge, also help customers to reduce transaction costs, to create a broader electronics industry chain prospects for Internet applications and promote confidence in the electronics industry.
Source: http://www.hqew.net/article/showdetails-article-2177.html
Tuesday, February 21, 2012
Local IC Design Industry Profit Margins is Less Than Overseas
Recently, Linear Technology, Analog IC design to achieve more than 75% of the profit margin of more than Apple and Microsoft, known as "the most profitable company. In semiconductors, the international average level of gross profit is 40%. Last year, IC design, the chairman of the China Semiconductor Industry Association IC Design Branch, Wei Shaojun pointed out, China's IC design industry average gross profit level is 12.39% lower than the international average of 31.3%, the average gross profit of China's top ten design enterprises.
Follow the strategy is the main reason. A large number of IC design enterprises due to the lack of the ability of the product definition, have to follow the strategy. In the IC to enter the high-cost era, there is no sufficient size and gross profit, it means the ability to re-enter the enterprise.
Linear demanding industrial, communications infrastructure and automotive markets, focusing on product innovation and performance and to avoid the field of consumer electronics products, this marketing strategy to maintain high profit margins provided a guarantee. Another factor is that most of Linear Technology's products are proprietary, high-performance market segment, there is no direct replacement products. In addition, the link of customer communication, Linear arrangements the most experienced design engineers to communicate with customers to obtain first-hand information of the customer design challenges. Pay more attention to team building, team stability and solidarity, and not deliberately seeking scale.
Linear Technology markets, products, customers and team sufficient efforts and achievements of today's high-profit, and for 30 years to achieve sustainable development.
The reason for China's IC design industry with lower profit margins with a number of reasons: First, the lack of product innovation, market price is not high. A large number of IC design enterprises due to the lack of the ability of the product definition, have to follow the strategy. Therefore, product innovation is not naturally sell at good prices.
Secondly, due to strategy, Pioneer tend to cut prices to suppress the latecomers, so in order to sell the product to the latecomers had to take low-cost strategy. The pioneer in lower prices to sell the products of this generation has been ready for a new generation of products. Through increased sales of a new generation of products, you can still maintain a good price.
Finally, despite the overall costs of the Chinese enterprises in Europe and America compared is low, therefore reduced the occupancy of gross profit. However, due to technical skills is not enough local businesses, often higher than the European and American products, manufacturing processes, this has led to the rise in the cost of products hard. Before and after dropping a liter, its own advantages tend to be offset.
Source: www.hqew.net/events/news-article/2163.html
Follow the strategy is the main reason. A large number of IC design enterprises due to the lack of the ability of the product definition, have to follow the strategy. In the IC to enter the high-cost era, there is no sufficient size and gross profit, it means the ability to re-enter the enterprise.
Linear demanding industrial, communications infrastructure and automotive markets, focusing on product innovation and performance and to avoid the field of consumer electronics products, this marketing strategy to maintain high profit margins provided a guarantee. Another factor is that most of Linear Technology's products are proprietary, high-performance market segment, there is no direct replacement products. In addition, the link of customer communication, Linear arrangements the most experienced design engineers to communicate with customers to obtain first-hand information of the customer design challenges. Pay more attention to team building, team stability and solidarity, and not deliberately seeking scale.
Linear Technology markets, products, customers and team sufficient efforts and achievements of today's high-profit, and for 30 years to achieve sustainable development.
The reason for China's IC design industry with lower profit margins with a number of reasons: First, the lack of product innovation, market price is not high. A large number of IC design enterprises due to the lack of the ability of the product definition, have to follow the strategy. Therefore, product innovation is not naturally sell at good prices.
Secondly, due to strategy, Pioneer tend to cut prices to suppress the latecomers, so in order to sell the product to the latecomers had to take low-cost strategy. The pioneer in lower prices to sell the products of this generation has been ready for a new generation of products. Through increased sales of a new generation of products, you can still maintain a good price.
Finally, despite the overall costs of the Chinese enterprises in Europe and America compared is low, therefore reduced the occupancy of gross profit. However, due to technical skills is not enough local businesses, often higher than the European and American products, manufacturing processes, this has led to the rise in the cost of products hard. Before and after dropping a liter, its own advantages tend to be offset.
Source: www.hqew.net/events/news-article/2163.html
How to DIY a Miniature Earphone
f you are interested in DIY electronic products, you can't miss reading this article because it is to show you how a miniature earphone is made. Now, let's begin!
Below is the circuit diagram of the miniature receptor.
Please see the below chart. How small the earphone is!
Below is the circuit diagram of the miniature receptor.
The mini receptor that is the miniature earphone is only a quarter of a coin. Most of the materials on surface are 0402 resistor and capacitor. Therefore, the welding requirements are high.
On the left is a connector of a charger and it is used for micro lithium battery charging. On the right is an inductance made by oneself. The middle is chip TDA7021.
Below is an earphone mic. Take it apart and put a board and battery into it.
The lithium battery (3V) and outer skin of the earphone are as below picture shows.
Please see the below chart. How small the earphone is!
Put the receptor circuit board into the outer skin of the earphone. The underneath is the earphone speaker, middle is battery and the up is receptor. (As below)
Below is the diagram for PCB's top layer of the miniature receptor.
Below is the diagram for bottom layer of the miniature receptor.
This miniature receptor consists of double layer PCB. Drill a hole as slim as your hair in the PCB. You need to grind the 0.5mm swivel to 0.22mm. Be careful for it is so easy to broken.
Finally, the miniature earphone is completed.
Samsung to Desert LCDs
As a result of final decision by the shareholders, Samsung Electronics will close its years business in LCD on April 1st and then transfer its main focus on display operations on OLEDs(Organic Light Emitting Diode).
The LCD industry has gone downhill as well as the price falling, which lead to Samsung’s LCD business lost up to $665m last year.
OLEDs are seen as having a better visual angle, richer colors and potentially better energy efficiency . OLEDS also have the potential to be flexible in the long-term future but one of the biggest disadvantages is OLED has a short life.
Because OLED technology has some way to go and seeing the future prosperity ,Samsung is banking on its R&D techniques to keep it ahead of the market and support a potentially lucrative product rather than an increasingly unprofitable product.
Sunday, February 19, 2012
9.7" iPad Shipments Numbered 48 million in 2011
In 2011, 9.7 inch Tablet PC shipments heavily increased since 9.7 inch iPad shipments reached 48 million, according to the Monthly TFT LCD Shipment Database from NPD DisplaySearch. Although the panel manufacturers highly expected the shipments to reach 50 million units, it failed to hit the goal due to the inventory adjustment in Q4.
Most of 9.7 inch panel shipments were XGA (1024x768) and the brightness was above 400nits. In addition, they all adopted wide view angle technology like IPS or FFS. The main suppliers of the panel were Korea-based Samsung and LG Display and Taiwan-based Chi Mei Corporation. Each supplier had its own advantages in 2011 as the chart below showed.
Most of 9.7 inch panel shipments were XGA (1024x768) and the brightness was above 400nits. In addition, they all adopted wide view angle technology like IPS or FFS. The main suppliers of the panel were Korea-based Samsung and LG Display and Taiwan-based Chi Mei Corporation. Each supplier had its own advantages in 2011 as the chart below showed.
NPD Display pointed out the growing trend of 9.7 inch panel shipments in 1H11 had significant relationship to the strong growth of Apple's iPad global sales. However, the shipments fluctuated in 2H11 monthly, especially the shipments decreased to 1 million in Nov. from historical record of 6 million in Sep. Both the supply chain management and production management met the challenge, particularly for the material inventory management and strict quality requirement. In 2011, LG Display, Samsung and Chi Mei supplied 9.7 inch panel by 54%, 40% and 6% respectively.
The 9.7 inch iPad shipments are expected to reach over 65 million in 2012 driven by the launch of new iPad mode, the lower cost of existing iPad and new panel technologies for example, Glass Thinning technology and so on.
The 9.7 inch iPad shipments are expected to reach over 65 million in 2012 driven by the launch of new iPad mode, the lower cost of existing iPad and new panel technologies for example, Glass Thinning technology and so on.
Related News: Analysis for Panel Market Demand 2012
Microsemi joins EU actuator project to lighten aircraft weight
Microsemi has announced its participation in a multi-disciplinary consortium funded by the European Union tasked with developing standardised Electro Mechanical Actuators (EMA) for aerospace applications to eliminate hydraulic circuits, pumps and reservoirs.
The aim of the three year project is to lighten aircraft weight as well as cut actuator cost.
The project, referred to as Actuation 2015, will develop and validate a common set of standardised, modular and scalable EMA resources for all actuators (flight control, high lift, main landing gear, door and thrust reverser) in all types of aircraft.
The work will draw on European Union and national projects to address power electronics, operation in harsh conditions and jam-tolerant EMA design.
Microsemi said it will share the development of a specification and subsequent design, manufacture and test of a standardised power module.
The work for this project will be performed in Microsemi’s facility near Bordeaux, France, which has been designing and manufacturing power modules for the aerospace industry for more than 15 years.
The all-electric aircraft (AEA) is a major target for next-generation aircraft to reduce consumption of non-propulsive power and thus fuel burn. EMAs are mandatory, but technical improvements are necessary to meet the requirements established by ACARE (Advisory Council of Aeronautics Research in Europe) and airframers.
More: LM319D LT1014DSW MAX483ESA MAX483ECSA MAX481CSA MAX481ESA MAX495CSA MAX634CSA MT9041AP BA10393F-E2 DG538ADN DG308ACJ ADS7816U
AN2131QC 74LCX244MTCX 74LVC08AD DS1621 E28F640J3A120 DG418DY
The aim of the three year project is to lighten aircraft weight as well as cut actuator cost.
The project, referred to as Actuation 2015, will develop and validate a common set of standardised, modular and scalable EMA resources for all actuators (flight control, high lift, main landing gear, door and thrust reverser) in all types of aircraft.
The work will draw on European Union and national projects to address power electronics, operation in harsh conditions and jam-tolerant EMA design.
Microsemi said it will share the development of a specification and subsequent design, manufacture and test of a standardised power module.
The work for this project will be performed in Microsemi’s facility near Bordeaux, France, which has been designing and manufacturing power modules for the aerospace industry for more than 15 years.
The all-electric aircraft (AEA) is a major target for next-generation aircraft to reduce consumption of non-propulsive power and thus fuel burn. EMAs are mandatory, but technical improvements are necessary to meet the requirements established by ACARE (Advisory Council of Aeronautics Research in Europe) and airframers.
More: LM319D LT1014DSW MAX483ESA MAX483ECSA MAX481CSA MAX481ESA MAX495CSA MAX634CSA MT9041AP BA10393F-E2 DG538ADN DG308ACJ ADS7816U
AN2131QC 74LCX244MTCX 74LVC08AD DS1621 E28F640J3A120 DG418DY
Thursday, February 16, 2012
PCIe Gen3 switch family Was Developed by PLX
PLX Technology Inc, the technology and market share leader in PCI Express switches, bridges and 10GBase-T PHY solutions, has developed its PCI Express (PCIe) Gen3 switch family with three new devices, and they comply with the PCI Express Gen3 r1.0 Specification.
The new products include the PLX ExpressLane PEX8749 (48-lanes, 18 ports), PEX8733 (32 lanes, 18-ports), and PEX8725 (24 lanes, 10 ports) PCIe Gen3 switches. They are used in servers, storage, and communications.
SN74LVC2G14DCKR SN74LVC1G32DCKR SN74LVC2G74DCUR SN75188N KM4132G271BQ-10 LT1302CS8 LT1431CS8 LT1425CS LT1640LCS8 MAX4259EEE MAX4525CUB LT1032CSW LT1054CS8 LT1125CSW LT1237CG
New PLX PCIe Gen3 multi-root switch device features include two NT (non-transparency) ports, four DMA (direct memory access) engines, two VCs (virtual channels), and up to 12 ports for SSC (spread spectrum clock) isolation.
The NT feature allows host failover and redundancy. In addition, it has been widely used by tier-one OEMs. The on-chip DMA engines can help engineers to increase the performance of systems via moving data among endpoints or between memory and endpoints with no CPU bandwidth sacrifice. Support for two VCs enable users to prioritize traffic to support desired quality of service. And the SSC clock isolation for each x4 port of the device allows designers to create large systems with each sub-system running its own SSC clock.
x16 and x8 ports offer native x2 and x4 ports that enable development of large arrays of SSD based systems with fewer switches. Besides, it also supports for PCIe specification ECNs (engineering change notices) such as multicast, ACS (access control service), ARI (alternative routing-ID interpretation), atomic operations, and OBFF (optimized buffer flush/fill).
The product is priced at $35- $70 and the production will be available in Q4.
The new products include the PLX ExpressLane PEX8749 (48-lanes, 18 ports), PEX8733 (32 lanes, 18-ports), and PEX8725 (24 lanes, 10 ports) PCIe Gen3 switches. They are used in servers, storage, and communications.
SN74LVC2G14DCKR SN74LVC1G32DCKR SN74LVC2G74DCUR SN75188N KM4132G271BQ-10 LT1302CS8 LT1431CS8 LT1425CS LT1640LCS8 MAX4259EEE MAX4525CUB LT1032CSW LT1054CS8 LT1125CSW LT1237CG
New PLX PCIe Gen3 multi-root switch device features include two NT (non-transparency) ports, four DMA (direct memory access) engines, two VCs (virtual channels), and up to 12 ports for SSC (spread spectrum clock) isolation.
The NT feature allows host failover and redundancy. In addition, it has been widely used by tier-one OEMs. The on-chip DMA engines can help engineers to increase the performance of systems via moving data among endpoints or between memory and endpoints with no CPU bandwidth sacrifice. Support for two VCs enable users to prioritize traffic to support desired quality of service. And the SSC clock isolation for each x4 port of the device allows designers to create large systems with each sub-system running its own SSC clock.
x16 and x8 ports offer native x2 and x4 ports that enable development of large arrays of SSD based systems with fewer switches. Besides, it also supports for PCIe specification ECNs (engineering change notices) such as multicast, ACS (access control service), ARI (alternative routing-ID interpretation), atomic operations, and OBFF (optimized buffer flush/fill).
The product is priced at $35- $70 and the production will be available in Q4.
Analog Devices, Inc. （ADI） released the ADL5336 and the ADRF6516
Analog Devices, Inc. (ADI) released the ADL5336 and the ADRF6516, which are two variable gain amplifier (VGA) products that feature new levels of integration and performance for designers of broadband communications systems. The ADL5336 VGA integrates a pair of programmable rms (root-mean-square) detectors and two IF (intermediate frequency) VGAs. The ADRF6516 VGA incorporates dual-channel, programmable, 6-pole low-pass filters and VGAs in a single chip.
The ADL5336, a cascadable analog dual IF VGA with two integrated rms detectors, can replace up to four discrete RF components plus additional passive discrete components. It can operate as two cascaded amplifiers or use independently, while the rms detectors can be programmed for independent gain control for each VGA. When the ADL5336 is configured in a cascaded VGA mode, the device provides a continuous gain control range of 48 dB. Individually, each VGA provides a gain control range of 24 dB. The maximum gain for each amplifier can be programmed via SPI control.
With excellent linearity and noise figure performance, the ADL5336 is used in applications requiring high dynamic-range such as point-to-multipoint radios and instrumentation and medical equipment.
The ADRF6516, a single-chip, matched pair of variable gain amplifiers with programmable low pass filters, is an ideal for baseband A/D converter driver applications. Each channel is capable of rejecting large out-of-band interferers while reliably boosting the wanted signal, thus reducing the bandwidth and resolution requirements on the analog-to-digital converters (ADCs). The excellent matching between channels and their high spurious-free dynamic range over all gain and bandwidth settings make the ADRF6516 ideal for quadrature-based (IQ) communication systems with dense constellations, multiple carriers, and nearby interferers.
The filters provide a six-pole Butterworth response with 1 dB corner frequencies programmable through the SPI port from 1 MHz to 31 MHz in 1 MHz steps. The preamplifier that precedes the filters offers a SPI-programmable option of either 3 dB or 6 dB of gain. The preamplifier sets a differential input impedance of 1600 Ω and has a common-mode voltage that defaults to VPS/2 but can be driven from 1.1 V to 1.8 V.
The variable gain amplifiers that follow the filters provide 50 dB of continuous gain control with a slope of 15.5 mV/dB. Their maximum gains can be programmed to various values through the SPI. The output buffers provide a differential output impedance of 30 Ω and are capable of driving 2 V p-p into 1 kΩ loads. The output common-mode voltage defaults to VPS/2, but it can be adjusted down to 900 mV by driving the high impedance VOCM pin. Independent, built-in dc offset correction loops can be disabled if fully dc-coupled operation is desired. The high-pass corner frequency is defined by external capacitors on the OFS1 and OFS2 pins and the VGA gain.
The setpoint for each integrated detector is also programmed via the SPI in 3-dB steps. An additional switch has been integrated to allow the second VGA to toggle between two input sources.
Hot parts from hqew.net:
TA75S393F MIC39100-2.5BS MC33260P MIC5209-5.0BM MC146818P MC145505DW MIC2026-1YM MACH210-15JC LM358ADR LM339MX LM2941S LM386 LM3940IS-3.3 LM4040CIM3-5.0 LM431ACM LM6172IM
The ADL5336, a cascadable analog dual IF VGA with two integrated rms detectors, can replace up to four discrete RF components plus additional passive discrete components. It can operate as two cascaded amplifiers or use independently, while the rms detectors can be programmed for independent gain control for each VGA. When the ADL5336 is configured in a cascaded VGA mode, the device provides a continuous gain control range of 48 dB. Individually, each VGA provides a gain control range of 24 dB. The maximum gain for each amplifier can be programmed via SPI control.
With excellent linearity and noise figure performance, the ADL5336 is used in applications requiring high dynamic-range such as point-to-multipoint radios and instrumentation and medical equipment.
The ADRF6516, a single-chip, matched pair of variable gain amplifiers with programmable low pass filters, is an ideal for baseband A/D converter driver applications. Each channel is capable of rejecting large out-of-band interferers while reliably boosting the wanted signal, thus reducing the bandwidth and resolution requirements on the analog-to-digital converters (ADCs). The excellent matching between channels and their high spurious-free dynamic range over all gain and bandwidth settings make the ADRF6516 ideal for quadrature-based (IQ) communication systems with dense constellations, multiple carriers, and nearby interferers.
The filters provide a six-pole Butterworth response with 1 dB corner frequencies programmable through the SPI port from 1 MHz to 31 MHz in 1 MHz steps. The preamplifier that precedes the filters offers a SPI-programmable option of either 3 dB or 6 dB of gain. The preamplifier sets a differential input impedance of 1600 Ω and has a common-mode voltage that defaults to VPS/2 but can be driven from 1.1 V to 1.8 V.
The variable gain amplifiers that follow the filters provide 50 dB of continuous gain control with a slope of 15.5 mV/dB. Their maximum gains can be programmed to various values through the SPI. The output buffers provide a differential output impedance of 30 Ω and are capable of driving 2 V p-p into 1 kΩ loads. The output common-mode voltage defaults to VPS/2, but it can be adjusted down to 900 mV by driving the high impedance VOCM pin. Independent, built-in dc offset correction loops can be disabled if fully dc-coupled operation is desired. The high-pass corner frequency is defined by external capacitors on the OFS1 and OFS2 pins and the VGA gain.
The setpoint for each integrated detector is also programmed via the SPI in 3-dB steps. An additional switch has been integrated to allow the second VGA to toggle between two input sources.
Hot parts from hqew.net:
TA75S393F MIC39100-2.5BS MC33260P MIC5209-5.0BM MC146818P MC145505DW MIC2026-1YM MACH210-15JC LM358ADR LM339MX LM2941S LM386 LM3940IS-3.3 LM4040CIM3-5.0 LM431ACM LM6172IM
Power Innovations Ltd Manufacturer Introduction
In 1952, Bourns patented the world's first trimming potentiometer, trademarked Trimpot ®. Bourns' dedication to excellence ensures continuous improvement of its products and services to satisfy customer requirements on a global basis. Bourns’s headquarters in Riverside, California and nine other facilities around the world has continued growing through acquisitions and start-ups. Bourns, Inc. serves a broad range of markets, including telecommunications, computer, industrial, instrumentation, automotive, consumer, audio, and medical.
Popular parts: MIC5248-1.2BM5 OPA404KU OPA445AU OPA2336U OPA4243EA, OPA633KP REF02BU PM6341-RI
W83627HF-AW TMS320VC5410PGE100 TMS320F240PQA
The Products include precision potentiometers, panel controls, encoders, resistor/capacitor networks, chip resistors/arrays, inductors, transformers, resettable fuses, thyristor-based overvoltage protectors, line feed resistors, gas discharge tubes, telephone station protectors, 5-pin protectors, industrial signal, irrigation and petroleum protectors, CATV coax protectors, signal data protectors, indoor and outdoor POT splitters, network interface devices, and integrated circuits.
After more than 62 years in business, Bourns continues to grow because of the company's continued commitment to providing value for our customers. Bourns invests in innovative new products through development within Bourns and through strategic acquisition of companies or product lines. The electronic components of the future will be increasingly more complex through the integration of passive and active functions to provide complete subsystem solutions. With global manufacturing and customer support capabilities, Bourns is uniquely positioned to tackle demanding requirements and provide the value customers expect from a trusted business partner.
Popular parts: MIC5248-1.2BM5 OPA404KU OPA445AU OPA2336U OPA4243EA, OPA633KP REF02BU PM6341-RI
W83627HF-AW TMS320VC5410PGE100 TMS320F240PQA
The Products include precision potentiometers, panel controls, encoders, resistor/capacitor networks, chip resistors/arrays, inductors, transformers, resettable fuses, thyristor-based overvoltage protectors, line feed resistors, gas discharge tubes, telephone station protectors, 5-pin protectors, industrial signal, irrigation and petroleum protectors, CATV coax protectors, signal data protectors, indoor and outdoor POT splitters, network interface devices, and integrated circuits.
After more than 62 years in business, Bourns continues to grow because of the company's continued commitment to providing value for our customers. Bourns invests in innovative new products through development within Bourns and through strategic acquisition of companies or product lines. The electronic components of the future will be increasingly more complex through the integration of passive and active functions to provide complete subsystem solutions. With global manufacturing and customer support capabilities, Bourns is uniquely positioned to tackle demanding requirements and provide the value customers expect from a trusted business partner.
Monday, February 13, 2012
TI's LM5017: 100 V, 600 mA Synchronous Step-down Regulators
TI expands its product line of high-voltage load point through the LM5017, a 100 V, 600 mA synchronous step-down regulators with integrated high side and low side MOSFETs. The constant-on-time (COT) control scheme employed in the LM5017 requires no loop compensation, provides excellent transient response, and enables very low step-down ratios. The on-time varies inversely with the input voltage resulting in nearly constant frequency over the input voltage range. A high voltage startup regulator provides bias power for internal operation of the IC and for integrated gate drivers.
A peak current limit circuit protects against overload conditions. The undervoltage lockout (UVLO) circuit allows the input undervoltage threshold and hysteresis to be independently programmed.
The LM5017 is available in LLP-8 and PSOP-8 plastic packages.
• Smart Power Meters
• Telecommunication Systems
• Automotive Electronics
• Isolated Bias Supply
• Wide 9 V to 100 V Input Range
• Integrated 100 V, High and Low Side
• No Schottky Required
• Constant On-time Control
• No Loop Compensation Required
• Ultra-Fast Transient Response
• Nearly Constant Operating Frequency
• Intelligent Peak Current Limit
• Adjustable Output Voltage from 1.225
• Precision 2% Feedback Reference
• Frequency Adjustable to 1 MHz
• Adjustable Undervoltage Lockout (UVLO)
• Remote Shutdown
• Thermal Shutdown
Related News: High Speed LDO Regulators-Details in XC6204B272ML
DC/DC Converter with Fault Protection LT8582 Be Released
The LT®8582 which is from Linear Technology Corporation is a dual independent channel PWM DC/DC converter with a power good pin and built-in fault protection to help guard against input overvoltage and overtemperature conditions. Each channel consists of a 42V master switch and a 42V slave switch that can be tied together for a total current limit of 3A.
The LT8582 is ideal for many local power supply designs. Together, the two channels can produce a 12V and a –12V output with 14.4W of combined output power from a 5V input. Moreover, its slave switch allows the part to be configured in high voltage, high power charge pump topologies that are more efficient and require fewer components than traditional circuits.
What's more, the LT8582 features innovative SHDN pin circuitry that allows for slowly varying input signals and an adjustable undervoltage lockout function. Additional features such as output short protection, frequency foldback and soft-start are integrated.
Applications
• Local Power Supply
• Vacuum Fluorescent Display (VFD) Bias Supplies
• TFT-LCD Bias Supplies
• Automotive Engine Control Unit (ECU) Power
Features
• Dual 42V, 3A Combined Power Switch
• Master/Slave (1.7A/1.3A) Switch Design
• Wide Input Range: 2.5V to 22V Operating, 40V Maximum Transient
• Power Good Pin for Event Based Sequencing
• Switching Frequency Up to 2.5MHz
• Each Channel Easily Configurable as a Boost, SEPIC, Inverting or Flyback Converter
• Low VCESAT Switch: 270mV at 2.75A (Typical)
• Can be Synchronized to an External Clock
• Output Short-Circuit Protection
• High Gain SHDN Pin Accepts Slowly Varying Input Signals
• 24-Pin 7mm x 4mm DFN Package
Related News: TI Announced Step Down DC-DC Converter TPS6217X Series
Electronics Designers, What Daunting Situations Come from Power Integrity
The LT8582 is ideal for many local power supply designs. Together, the two channels can produce a 12V and a –12V output with 14.4W of combined output power from a 5V input. Moreover, its slave switch allows the part to be configured in high voltage, high power charge pump topologies that are more efficient and require fewer components than traditional circuits.
What's more, the LT8582 features innovative SHDN pin circuitry that allows for slowly varying input signals and an adjustable undervoltage lockout function. Additional features such as output short protection, frequency foldback and soft-start are integrated.
• Local Power Supply
• Vacuum Fluorescent Display (VFD) Bias Supplies
• TFT-LCD Bias Supplies
• Automotive Engine Control Unit (ECU) Power
• Dual 42V, 3A Combined Power Switch
• Master/Slave (1.7A/1.3A) Switch Design
• Wide Input Range: 2.5V to 22V Operating, 40V Maximum Transient
• Power Good Pin for Event Based Sequencing
• Switching Frequency Up to 2.5MHz
• Each Channel Easily Configurable as a Boost, SEPIC, Inverting or Flyback Converter
• Low VCESAT Switch: 270mV at 2.75A (Typical)
• Can be Synchronized to an External Clock
• Output Short-Circuit Protection
• High Gain SHDN Pin Accepts Slowly Varying Input Signals
• 24-Pin 7mm x 4mm DFN Package
Related News: TI Announced Step Down DC-DC Converter TPS6217X Series
Electronics Designers, What Daunting Situations Come from Power Integrity
We Are Changing from Made in China to Create in China
Along with the increasing improvement and popularity of the Mobile Broadband Technology, smartphone has made it undisputable leadership with its unique advantages. However, the smartphone giants like Apple and HTC, etc. have been dominated the cell phone market especially the high-end smartphone field for long time. The Chinese cell phone manufacturers are just marked by "made in China". Can't the Chinese cell phone manufacturers be outstanding on the international stage? Can't they "create in China" instead of "made in China"?
At CES2012, the Chinese cell phone manufacturers had been successfully attracted the participants' attention and made users be hopeful for Chinese cell phone. Lenovo displayed its first smartphone together with Intel, ZTE exhibited its full series of LTE products and Huawei showed the smartphone code name "Ascend P1 S" which is the slimmest in the world. All of these represent that "create in China" is rising abruptly and global users have seen Chinese cell phone reaching the international level.
Huawei's smartphone Ascend P1 S has created a new world record of smartphone's thickness. The phone packs in a 4.3-inch Super AMOLED display and has a dual-core 1.5 GHz processor. In addition, it has rear (8-megapixel) and front (1.3-megapixel) cameras and runs on Android 4.0, Ice Cream Sandwich. It offers 1080p video recording and the battery is 1800 mA. It is amazing that the phone is so powerful even though it is such slim. The slimmest gadget compares favourably with iPhone 4S.
As the first enterprise in China that enters the field of high-end cell phone, Huawei has demonstrated its technical strength by releasing Ascend P1 S which is the symbol of the company enter the high-end smartphone market. Apparently, Huawei is manufacturing an ultra-thin phone while the hidden facts are the company's innovation and exploring spirits.
The release of Huawei's Ascend P1 S not only means that Huawei becomes world's top brand but also "create in China" is going toward the world. What's more, Chinese cell phone appears to talent show itself on the international stage.
Let's wait for more creation and innovation from Chinese cell phone manufactures patiently.
Related News:ST to Launch the Advanced Chip STOD03A for Smartphone Display Screen
Summary of Mobile Phone Manufacturing Giants in 2011
Summary of Mobile Phone Manufacturing Giants in 2011
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