CDC5806
Overview
The CDC5806 is a clock generator which synthesizes video clocks, audio clocks, CPU clock, ASIC clock, USB clock, and a memory card clock from a 54-MHz system clock. Three phase-locked loops (PLLs) are used to generate the different frequencies from the system clock.
- High Performance Clock Generator
- Clock Input Compatible With LVCMOS/LVTTL
- Requires a 54-MHz Input Clock to Generate Multiple Output Frequencies
- Low Jitter for Clock Distribution
- Generates the Following Clocks: - VIDCLK 74.175824 MHz/54 MHz (Buffered) - AUDCLK 16.9344 MHz/12.288 MHz - CPUCLK 64 MHz - ASICCLK 32 MHz - USBCLK 48 MHz - MCCLK 38.4 MHz/19.2 MHz/12 MHz
- Operates From Single 3.3-V Supply
- Low Peak-to-Peak Period Jitter (150 ps Max)
- PLLs Are Powered Down, if No Valid REF_IN Clock (< 5 MHz) is Detected or the VDD is Below 2 V
- PLL Loop Filter Components Integrated
- Packaged in TSSOP (PW) 20-Pin Package
