AD9887KS-140

Specialized Overview

The AD9887KS-140 is a dual-interface display interface IC designed for flat panel displays. It integrates an analog receiver with a 140 MSPS maximum conversion rate and a DVI 1.0 compatible digital receiver operating up to 112 MHz. The device supports resolutions up to SXGA (1280 × 1024 at 75 Hz). Key electrical parameters include a 330 MHz full-power analog bandwidth, a 0.5 V to 1.0 V analog input range, and 500 ps p-p PLL clock jitter at the maximum sampling rate. It operates on a single 3.3 V power supply with a typical total supply current of 258 mA. The component is housed in a 160-lead MQFP plastic package and functions within a temperature range of 0°C to 70°C.

Specialized Feature Summary

• Dual interface architecture supporting both analog RGB graphics signals and digital DVI 1.0 inputs on a single chip.
• Integrated analog front-end featuring a triple ADC, internal 1.25 V reference, and a phase-locked loop for pixel clock generation from HSYNC.
• DVI receiver capable of handling true color data in 1 or 2 pixels per clock modes with high skew tolerance.
• Comprehensive sync processing including composite sync detection, sync-on-green slicing, and hot-plug detection.

Specialized Applications

• RGB graphics processing for personal computers and workstations
• LCD monitors and projectors
• Plasma display panels
• Scan converters and microdisplays
• Digital TV systems

Specialized Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified secondary market suppliers. Request original manufacturer documentation and traceability records to confirm the part matches the AD9887KS-140 specification. Inspect the MQFP-160 package for physical integrity and ensure compliance with RoHS standards. Confirm that the device has not been subjected to unauthorized re-marking or thermal stress during storage.

Specialized Selection Notes

Select the AD9887KS-140 when a design requires flexibility to support both legacy analog VGA/SVGA/XGA sources and modern digital DVI interfaces. This component is suitable for applications needing SXGA resolution support up to 75 Hz. Ensure the system design accommodates the 3.3 V power requirement and provides adequate thermal management for the 160-lead MQFP package. Verify that the host controller can interface with the 2-wire serial register for configuration.

Specialized Part Context

The AD9887KS-140 belongs to the AD9887 family of dual-interface display controllers manufactured by Analog Devices. It serves as a bridge between video source electronics and flat panel display panels. The 'KS' suffix indicates the surface mount MQFP package variant, while '-140' denotes the 140 MSPS speed grade. This specific model is listed as obsolete in official documentation, indicating it has been superseded by newer generations in the product line.

Specialized Replacement Considerations

Public documentation lists the AD9888KS-140 as a related component within the same product family. Designers should evaluate the AD9888 datasheet for pin compatibility and functional differences before substitution. Verify that the replacement supports the required interface protocols and resolution targets.