CDCDLP223 - Texas Instruments

CDCDLP223 3.3V Clock Synthesizer

The CDCDLP223 is a PLL-based high performance clock synthesizer that is optimized for use in DLP™ systems. It uses a 20 MHz crystal to generate the fundamental frequency and derives the frequencies for the 100 MHz HCLK and the 300 MHz HCLK output. Further, the CDCDLP223 generates a buffered copy of the 20 MHz Crystal Oscillator Frequency at the 20 MHz output.

Features

• High-Performance Clock Synthesizer
• Uses a 20 MHz Crystal Input to Generate Multiple Output Frequencies
• Integrated Load Capacitance for 20 MHz Oscillator Reducing System Cost
• All PLL Loop Filter Components are Integrated
• Generates the Following Clocks:
  – REF CLK 20 MHz (Buffered)
  – XCG CLK 100 MHz With SSC
  – DMD CLK 200-400 MHz With Selectable SSC
• Very Low Period Jitter Characteristic:
  – ±100 ps at 20 MHz Output
  – ±75 ps at 100 MHz and 200
  –400 MHz Outputs
• Includes Spread-Spectrum Clocking (SSC), With Down Spread for 100 MHz and Center Spread for 200
  –400 MHz
• HCLK Differential Out.