CDC421125 Datasheet

CDC421125 Features:

•  Single 3.3 V Supply
•  High-Performance Clock Generator,  Incorporating Crystal Oscillator Circuitry With Integrated Frequency Synthesizer
•  Low Output Jitter, as Low as 380 fs (rms integrated between 10 kHz–20 MHz)
•  Low Phase Noise at 312.5 MHz, Less Than –120 dBc/Hz at 10 kHz and –147 dBc/Hz at 10 MHz Offset From the Carrier
•  Supports Crystal Frequencies or LVCMOS Input Frequencies at 31.25 MHz, 33.33 MHz, and 35.42 MHz
•  Output Frequencies: 100 MHz, 106.25 MHz,125 MHz, 156.25 MHz, 212.5 MHz, 250 MHz,and 312.5 MHz
•  Differential Low-Voltage Positive Emitter Coupled Logic (LVPECL) Output
•  Fully Integrated Voltage-Controlled Oscillator  (VCO) Running from 1.75 GHz to 2.35 GHz
•  Typical Power Consumption 300 mW
•  Chip-Enable Control Pin
•  QFN-24 Package
•  ESD Protection Exceeds 2 kV HBM
•  Industrial Temperature Range –40°C to 85°C

CDC421125 APPLICATIONS:
Low-Cost, Low-Jitter Frequency Multiplier

CDC421125 DESCRIPTION:
CDC421xxx is a high-performance, low-phase-noise clock generator. It has an integrated low-noise, LC-based voltage-controlled oscillator (VCO) that operates within the 1.75 GHz–2.35 GHz frequency range. It has an integrated crystal oscillator that operates in conjunction with an external AT-cut crystal to produce a stable frequency reference for the PLL-based frequency synthesizer. The output frequency (fout) is proportional to the frequency of the input crystal (fxtal).
The device operates in a 3.3 V supply environment and is characterized for operation from –40°C to 85°C.