AD9883

a FEATURES 110 MSPS Maximum Conversion Rate 300 MHz Analog Bandwidth 0.5 V to 1.0 V Analog Input Range 500 ps p-p PLL Clock Jitter at 110 MSPS 3.3 V Power Supply Full Sync Processing Sync Detect for ”Hot Plugging” Midscale Clamping Power-Down Mode Low Power: 500 mW Typical Composite Sync Applications Require an External Coast APPLICATIONS RGB Graphics Processing LCD Monitors and Projectors Plasma Display Panels Scan Converters Microdisplays Digital TV 110 MSPS Analog Interface for Flat Panel Displays AD9883 FUNCTIONAL BLOCK DIAGRAM RAIN CLAMP A/D 8 ROUTA GAIN CLAMP A/D 8 GOUTA BAIN CLAMP A/D 8 BOUTA MIDSCV HSYNC COAST CLAMP FILT SYNC PROCESSING AND CLOCK GENERATION DTACK HSOUT VSOUT SOGOUT REF REF BYPASS SCL SDA A0 SERIAL REGISTER AND POWER MANAGEMENT AD9883 GENERAL DESCRIPTION The AD9883 is a complete 8-bit, 110 MSPS monolithic analog interface optimized for capturing RGB graphics signals from personal computers and workstations. Its 110 MSPS encode rate capability and full-power analog bandwidth of 300 MHz supports resolutions up to SXGA (1280 × 1024 at 60 Hz). The AD9883 includes a 110 MHz triple ADC with internal 1.25 V reference, a PLL, and programmable gain, offset, and clamp control. The user provides only a 3.3 V power supply, analog input, and HSYNC and COAST signals. Three-state CMOS outputs may be powered from 2.5 V to 3.3 V. The AD9883’s on-chip PLL generates a pixel clock from HSYNC and COAST inputs. Pixel clock output frequencies range from 1...