AD9888:  205 MSPS Highly Integrated Graphics Digitizer for UXGA and HDTV Displays

The AD9888 is a complete 8-bit, 205 MSPS monolithic analog interface optimized for capturing RGB graphics signals from personal computers and workstations. Its 205 MSPS encode rate capability and ...More

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AD9888:  205 MSPS Highly Integrated Graphics Digitizer for UXGA and HDTV Displays

Product Description

The AD9888 is a complete 8-bit, 205 MSPS monolithic analog interface optimized for capturing RGB graphics signals from personal computers and workstations. Its 205 MSPS encode rate capability and full-power analog bandwidth of 500 MHz supports resolutions up to UXGA (1600 x 1200 at 75 Hz).

For ease of design and to minimize cost, the AD9888 is a fully integrated interface solution for FPDs. The AD9888 includes an analog interface with a 205 MHz triple ADC with internal +1.25 V reference, PLL to generate a pixel clock from Hsync and Coast, mid-scale clamping, 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 AD9888's on-chip PLL generates a pixel clock from Hsync and Coast inputs. Pixel clock output frequencies range from 10 to 205 MHz. PLL clock jitter is less than 500 ps p-p typical at 205 MSPS. When the Coast signal is presented, the PLL maintains its output frequency in the absence of Hsync. A sampling phase adjustment is provided. Data, Hsync and Clock output phase relationships are maintained. The PLL can be disabled and an external clock input provided as the pixel clock. The AD9888 also offers full sync processing for composite sync and sync-on-green applications.

A clamp signal is generated internally or may be provided by the user through the CLAMP input pin. This interface is fully programmable via a two wire serial interface.

Fabricated in an advanced CMOS process, the AD9888 is provided in a space-saving 128-lead MQFP surface mount plastic package and is specified over the 0°C to +70°C temperature range.

Applications

  • RGB Graphics Processing
  • LCD Monitors and Projectors
  • Plasma Display Panels
  • Scan Converters
  • Microdisplays
  • Digital TV

Features

  • 205 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 @
    205 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 @205 MSPS

Diagrams

AD9888 Diagram
Functional Block Diagram for AD9888

ADV7604 - 12-Bit, Deep Color HDMI v1.3 Receiver with Analog Interface

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Part# Resolution (Bits) Sample Rate (MSPS) Max Resolution Auto Offset Auto Gain Video Decoder Macrovision Detection HDMI Rx Package
AD9380 8 150 1080p/SXGA X - - X X 100-LQFP
AD9381 8 150 1080p/SXGA - - - - X 100-LQFP
AD9388A 10 170 UXGA X X - X X 144-LQFP
AD9398 8 150 1080p/SXGA - - - - X 100-LQFP
AD9880 8 150 1080p/SXGA X - - X - 100-LQFP
AD9888 8 205 UXGA - - - - - 128-LQFP
AD9983A 8 170 UXGA X - - X - 64-LFCSP, 80-LQFP
AD9984A 10 170 UXGA X - - X - 64-LFCSP, 80-LQFP
AD9985A 8 140 SXGA X - - - - 80-LQFP
ADV7441A 10 170 1080p/UXGA X X X X X 144-LQFP
Pricing, Packaging & Availability

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*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

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