ADCS9888CVH-140/NOPB

Overview

The ADCS9888CVH-140/NOPB is an obsolete high-performance Analog Front End (AFE) for digital video applications, supporting resolutions up to UXGA. It integrates a 3-channel, 8-bit, 205 MHz ADC with full DC restoration and gain/offset compensation. Key specifications include a typical analog input bandwidth of 500 MHz and a PLL clock jitter of 570 ps p-p. The device operates on a 3.0 V to 3.6 V analog supply and a 2.2 V to 3.6 V I/O supply, with typical power dissipation of 1.3 W. It features digitally programmable color balancing and supports RGB and YUV/YPbPr signals.

Feature Summary

• 205 million pixels/s maximum conversion rate with 8-bit resolution across 3 channels
• Digitally programmed gain and offset for red, green, and blue color balancing
• Compatible with RGB and YUV/YPbPr video signals including 4:2:2 pulldown support
• On-chip PLL locked to pixel rate with flexible data output modes

Applications

• LCD flat panel monitors
• Video projectors
• Plasma display panels
• Video capture hardware
• RGB and YUV video processing

Procurement Notes

This component is marked as OBSOLETE by Texas Instruments. Verify current availability through authorized distributors or secondary markets. Ensure the specific suffix 'NOPB' corresponds to lead-free packaging if required by assembly standards. Confirm that the CVH package variant matches the target PCB footprint requirements.

Selection Notes

Select this device for legacy designs requiring integrated AFE functions for video digitization up to UXGA. Consider the 8-bit resolution limit and 205 MHz speed when evaluating signal integrity needs. Verify compatibility with downstream logic levels given the separate VDD supply range. Check thermal management requirements due to 1.3 W typical power dissipation in the 128-pin QFP package.

Part Context

The ADCS9888 belongs to Texas Instruments' video scaler and OSD product line. It was originally designed to handle analog-to-digital conversion for computer and component video sources. The part number indicates the CVH package (128-pin QFP) and NOPB lead-free designation. It serves as a specialized interface between analog video sources and digital processing units.

Replacement Considerations

As an obsolete part, direct replacements are not officially listed in the provided datasheet. Evaluate modern video ADCs or AFEs from Texas Instruments or other manufacturers that offer higher resolution or updated packaging. Ensure new components support similar sync processing and data output formats to minimize redesign effort.