Mini-stereo circuit using ic TDA2822

This circuit stereo power amplifier. By use integrated circuit number TDA2822 within be model Dual Amp give power watt at 1W 1W bandwidth expansion rates at 40dB 120kHz use power supply since 1.8V to 15volt and use current 6mA feed power supply 9volt reach the circuit C7 will perform filter fire level smoothly then go to feed power supply give with IC1 at 2 input signal pin will on the left and right that come in to change VR1 and VR2 for fine decrease popularity level has of the sound already coupling change C1 and C2 from that time pass by reach input of IC1 at 7, 8, 6 pin and 5 respectively from that time a signal had that to enlarged then go out 1 pin way.

Which be output of the channel a signal on the left and pin 3 ways are output of the channel on the right by a signal output of left channel and right channel will change C3 and C4 signal coupling reach a loudspeaker. By have R1, C5 and R2 C6 perform eradicate the noise of each the channel goes out.
When using the power supply 9 volt into this circuit.VR1 and VR2 to adjust the signal level of the right and left, the pin 7 and pin 6 of IC1.The amplifier IC1 is out of the output pin 1 and pin 3, through the C4 and C5 coupling signals to the left and right speakers.The C6, R1 and C7, R2 is to reduce noise.

High Research Rate for TDA2822

Model: TDA2822
Brand: ST
Package: DIPSOP
Basic parameters: Products: Audio Amplifiers
Product: Class-AB
Output power: 1.7 W
Output Type: 1-Channel Mono or 2-Channel Stereo
Available Gain: 39 dB
THD + Noise: 0.2% @ 8 Ohm @ 500 mW
Power supply voltage: 15 V
Supply current: 12 mA
Maximum power dissipation: 4000 mW
Minimum Operating Temperature: – 40 C
Maximum operating temperature: 85 C
Package / Box: PDIP-16
Packaging: Tube
Audio Load Resistance: 8 Ohm
Input bias current (max): 0.1 uA (Typ) @ 6V
Input Signal Type: Single
Output Signal Type: Differential or Single
Power Type: Single
Supply voltage (max): 15 V
Supply Voltage (Min): 3 V
TDA2822 in the major electronic website the search rate is very high, the trend of small businesses are tend to store it for higher price. This model is currently in the market original ic parts is not out of stock, the reference price range is 0.23 Yuan / pcs ~ 0.38 Yuan / pcs.
Source: http://www.partsparty.com/?p=458