CDC5806PW

Overview

The CDC5806PW is a three-PLL-based clock generator designed for digital TV applications. It synthesizes video, audio, CPU, ASIC, USB, and memory card clocks from a single 54-MHz LVCMOS/LVTTL reference input. The device operates on a single 3.3-V supply (3 V to 3.6 V) within an industrial temperature range of -40°C to 85°C. Key electrical parameters include a maximum peak-to-peak period jitter of 150 ps across all outputs. VIDCLK supports 74.175824 MHz or buffered 54 MHz; AUDCLK provides 16.9344 MHz or 12.288 MHz; CPUCLK outputs 64 MHz; ASICCLK outputs 32 MHz; USBCLK outputs 48 MHz; and MCCLK offers selectable frequencies of 38.4 MHz, 19.2 MHz, or 12 MHz.

Feature Summary

• Integrates three phase-locked loops with on-chip loop filters to eliminate external components
• Features low jitter performance suitable for precise clock distribution requirements
• Includes power-down logic that disables PLLs when no valid reference clock is detected or supply voltage drops below threshold

Applications

• Digital television systems with memory card interfaces
• Multi-clock generation for embedded processor architectures
• Audio and video synchronization circuits in consumer electronics

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and tape/reel specifications. Confirm availability status as production data may indicate end-of-life or obsolescence phases. Ensure the component meets RoHS compliance requirements for the intended manufacturing process. Cross-reference the datasheet revision date with the supplier's certificate of conformity to guarantee parameter accuracy.

Selection Notes

Select this component when a single reference clock must drive multiple asynchronous domains requiring specific frequency ratios. Verify that the required output frequencies match the fixed divider configurations available in the three PLLs. Ensure the system design accommodates the specified 54-MHz input requirement and the 3.3-V operating voltage range. Consider the thermal impedance characteristics if high-density PCB layouts are utilized.

Part Context

This part belongs to Texas Instruments' CDC series of clock generators and synthesizers. It is specifically engineered for digital TV applications where multiple synchronized clock signals are derived from a single source. The PW suffix denotes the 20-pin TSSOP plastic small-outline package variant.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official replacement guide for legacy product transitions.