CDC421106 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.
CDC421106 Key Features
- Single 3.3 V Supply
- High-Performance Clock Generator
- 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