CDC5801DBQ

Overview

The CDC5801DBQ is a low jitter clock multiplier and divider manufactured by Texas Instruments. It accepts a single-ended reference clock input ranging from 19 MHz to 125 MHz and generates differential outputs (CLKOUT/CLKOUTB) with frequencies between 12.5 MHz and 500 MHz. The device supports multiplication ratios of x4, x6, or x8, and division ratios of /2, /3, or /4. It features a programmable bidirectional delay step size of 2.6 mUI for phase alignment. Typical phase jitter is 8.0 ps (12 kHz to 20 MHz) at 500 MHz, with RMS period jitter of 2.1 ps. Operating voltage ranges from 3.0 V to 3.6 V, with typical power consumption of 200 mW at 500 MHz. It operates within an industrial temperature range of -40°C to 85°C.

Feature Summary

• Provides low jitter clock multiplication and division capabilities with programmable delay steps for precise phase alignment.
• Supports spread spectrum clock tracking functionality to reduce electromagnetic interference in system designs.
• Features flexible input compatibility by accepting various signal levels at the REFCLK terminal through adjustable reference voltage programming.

Applications

• Video graphics systems requiring precise clock synchronization
• Gaming products needing high-speed data transmission timing
• Datacom equipment utilizing multi-rate clock generation
• Telecom infrastructure relying on low jitter distribution

Procurement Notes

Verify the specific ordering suffix DBQ corresponds to the shrink small-outline package configuration required for your PCB layout. Confirm that the component meets RoHS compliance standards applicable to your manufacturing region before finalizing procurement orders. Ensure supply chain documentation matches the manufacturer's current production status.

Selection Notes

Select this component when designing systems requiring frequency multiplication up to 500 MHz or division down to 12.5 MHz from a single-ended source. Consider the programmable delay feature if phase alignment between reference and output clocks is critical. Evaluate power consumption requirements against the typical 200 mW dissipation at maximum operating frequencies.

Part Context

This device belongs to the CDC5801 family of clock generators designed for high-performance digital applications. It integrates a PLL and phase aligner into a compact package, eliminating the need for external components typically required for such functions. The part serves as a versatile solution for generating multiple clock domains from a single reference source.

Replacement Considerations

Check for CDC5801 variants with different package options if physical footprint constraints change. Verify functional equivalence regarding jitter specifications and supported frequency ranges when substituting with other Texas Instruments clock multiplier devices.