CDC5806PWR

Overview

The CDC5806PWR 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 voltage 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. Supply current typically ranges from 35 mA to 45 mA under test load conditions. The unit is housed in a 20-pin TSSOP (PW) package.

Feature Summary

• Integrates three phase-locked loops with on-chip loop filters to eliminate external components
• Provides selectable output frequencies for video, audio, and system buses via control pins
• Features power-down logic that disables PLLs when no valid reference clock or insufficient supply voltage is detected

Applications

• Digital television systems with memory card interfaces
• Clock distribution networks requiring low jitter performance
• Multi-clock generation from a single reference source

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature grade. Confirm RoHS compliance status through the latest datasheet revision notes. Ensure the component meets the required industrial operating temperature specifications for the target application environment before finalizing procurement.

Selection Notes

Select this component when a single 54-MHz reference is available to generate multiple synchronized clock domains. Verify that the required output frequencies match the internal divider configurations defined in the selection tables. Ensure the load capacitance requirements for the LVCMOS outputs are compatible with the receiving circuitry inputs.

Part Context

This part belongs to the Texas Instruments CDC5806 family of clock generators. The PWR suffix indicates the device is packaged in a 20-pin TSSOP format and supplied in reel packaging. This specific variant is characterized for operation within the extended industrial temperature range, distinguishing it from commercial grade counterparts.

Replacement Considerations

Direct pin-compatible replacements must maintain the same three-PLL architecture and 20-pin TSSOP footprint. Verify that substitute devices support the same 54-MHz reference input requirement and provide equivalent jitter specifications for the generated video and audio clocks.