AD9882KST-140

Specialized Overview

The AD9882KST-140 is a dual interface integrated circuit for flat panel displays, combining an analog RGB interface and a DVI receiver on a single chip. It features an 8-bit, 140 MSPS triple ADC with a 300 MHz full-power analog bandwidth, supporting resolutions up to SXGA (1280 × 1024 at 75 Hz). The digital interface is DVI 1.0 compatible, operating up to 112 MHz with high skew tolerance. The device includes an internal PLL generating pixel clocks from 12 MHz to 140 MHz, with typical jitter of 500 ps p-p. It supports HDCP v1.0 for encrypted content protection. Powered by a 3.3 V supply, it is housed in a 100-lead LQFP package and operates within the 0°C to +70°C temperature range.

Specialized Feature Summary

• Integrates a 140 MSPS analog RGB interface with a DVI 1.0 compatible digital receiver on a single monolithic chip.
• Includes High-bandwidth Digital Content Protection (HDCP) support for authenticating video receivers and decrypting encoded data.
• Features a programmable phase-locked loop (PLL) that generates pixel clocks from HSYNC inputs with low jitter characteristics.
• Provides full sync processing capabilities including composite sync and sync-on-green (SOG) handling.

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 the specific suffix KST against official Analog Devices documentation to confirm pinout and thermal specifications. Confirm availability status as distribution channels may list this component as obsolete or limited stock. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS process. Cross-reference the datasheet revision to ensure compatibility with current design requirements.

Specialized Selection Notes

Select the AD9882KST-140 when both analog VGA/YPbPr inputs and digital DVI/HDMI sources must be supported simultaneously. The 140 MSPS rate is suitable for SXGA resolutions. Consider the 100-lead LQFP package size for board layout constraints. Verify that the system power supply can provide the required 3.3 V rails with adequate decoupling for the analog and digital sections.

Specialized Part Context

The AD9882A series serves as a bridge between legacy analog computer graphics and modern digital display standards. It allows designers to create versatile display controllers that can accept signals from older PC cards while also supporting newer digital interfaces. This dual capability simplifies the design of hybrid display systems and reduces the component count compared to using separate interface chips.

Specialized Replacement Considerations

Public confirmed substitute part numbers: AD9882AKSTZ-140, AD9882AKSTZ-100.