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GENERAL DESCRIPTION

The AD9888 is a complete 8-bit, 170 MSPS, monolithic analog interface optimized for capturing RGB graphics signals from personal computers and workstations. Its 170 MSPS encode rate capability and full-power analog bandwidth of 500 MHz supports resolutions of up to 1600 × 1200 (UXGA) at 75 Hz. For ease of design and to minimize cost, the AD9888 is a fully integrated interface solution for flat panel displays. The AD9888 includes an analog interface that has a 170 MHz triple ADC with an internal 1.25 V reference phase-locked loop (PLL) to generate a pixel clock from HSYNC and COAST; midscale clamping; and programmable gain, offset, and clamp controls. The user provides only a 3.3 V power supply, analog input, and HSYNC and COAST signals. Three-state CMOS outputs can be powered from 2.5 V to 3.3 V

FEATURES

170 MSPS maximum conversion rate

500 MHz programmable analog bandwidth

0.5 V to 1.0 V analog input range

Less than 450 ps p-p PLL clock jitter at 170 MSPS

3.3 V power supply

Full sync processing

Sync detect for hot plugging

2:1 analog input mux

4:2:2 output format mode

Midscale clamping

Power-down mode

Low power: <1 W typical at 170 MSPS

APPLICATIONS

RGB graphics processing

LCD monitors and projectors

Plasma display panels

Scan converters

Microdisplays

Digital TV