CDCDLP223PW

Clock Generators, PLLs, Frequency Synthesizers Overview

The CDCDLP223PW is a high-performance clock synthesizer designed for DLP systems, manufactured by Texas Instruments. It operates on a single 3.3V supply and features a 20-pin TSSOP package with an industrial temperature range of -40°C to 85°C. The device utilizes a 20 MHz crystal input to generate multiple output frequencies: a buffered 20 MHz REF CLK, a 100 MHz XCG CLK, and a programmable 200-400 MHz DMD CLK. It integrates PLL loop filter components and load capacitors. Key performance metrics include cycle jitter of ±100 ps at 20 MHz and ±75 ps at higher frequencies. Spread spectrum clocking (SSC) is supported for EMI reduction.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates multiple clock outputs including 20 MHz, 100 MHz, and programmable 200-400 MHz signals from a single 20 MHz crystal input
• Integrates all PLL loop filter components and oscillator load capacitors to reduce system component count
• Supports spread spectrum clocking with down-spread for 100 MHz and center-spread for DMD clock outputs to minimize electromagnetic interference
• Includes a fail-safe startup circuit that ensures stable operation only after power voltage application and crystal oscillation stabilization

Clock Generators, PLLs, Frequency Synthesizers Applications

• Central clock generator for DLP projection systems
• Providing reference clocks for XDR clock generators such as the CDCD5704
• Supplying DMD control logic clocks for DLP control ASICs

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix 'PW' confirms the 20-pin TSSOP package variant when sourcing. Confirm the operating temperature grade matches the industrial specification of -40°C to 85°C for your environment. Ensure the design supports the required 3.3V single supply voltage. Check for RoHS compliance status if environmental regulations apply to your assembly process.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a low-jitter, multi-output clock solution is required specifically for DLP-based imaging architectures. It is suitable for designs needing integrated PLL filtering to simplify PCB layout. Consider this part if spread spectrum capabilities are necessary for EMI compliance in the 100 MHz and DMD clock domains without external modulation circuits.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This device belongs to the family of clock synthesizers optimized for digital light processing technologies. It serves as a critical timing reference within the DLP ecosystem, interfacing between the main crystal oscillator and the display controller ASICs. Its integration level reduces the bill of materials compared to discrete PLL solutions.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Publicly confirmed direct substitute part numbers are not available in the provided documentation. Designers should consult official Texas Instruments resources for current obsolescence notices or recommended upgrades.