GENERAL DESCRIPTION
The ADV7197 is a triple, high-speed, digital-to-analog encoder on a single monolithic chip. It consists of three high-speed video D/A converters with TTL-compatible inputs.
The ADV7197 has three separate 10-bit-wide input ports that accept data in 4:4:4 10-bit YCrCb or RGB, or 4:2:2 10-bit YCrCb. This data is accepted in HDTV format at 74.25 MHz or 74.1758 MHz. For any other high definition standard but SMPTE274M or SMPTE296M, the Async Timing Mode can be used to input data to the ADV7197. For all standards, external horizontal, vertical, and blanking signals or EAV/SAV codes control the insertion of appropriate synchronization signals into the digital data stream and therefore the output signals.

FEATURES
   INPUT FORMATS
      YCrCb in 2  10-Bit (4:2:2) or 3  10-Bit (4:4:4) Format
      Compliant to SMPTE274M (1080i), SMPTE296M
      (720p) and Any Other High-Definition Standard Using
      Async Timing Mode
      RGB in 3  10-Bit 4:4:4 Format

   OUTPUT FORMATS
      YPrPb HDTV (EIA-770.3)
      RGB Levels Compliant to RS-170 and RS-343A
      11-Bit + Sync (DAC A)
      11-Bit DACs (DAC B, C)

   PROGRAMMABLE FEATURES
      Internal Test Pattern Generator with Color Control
      Y/C Delay (±)
      Individual DAC On/Off Control
      VBI Open Control
      I2C Filter
      2-Wire Serial MPU Interface
      Single Supply 5 V/3.3 V Operation
      52-Lead MQFP Package

APPLICATIONS
   HDTV Display Devices
   HDTV Projection Systems
   Digital Video Systems
   High Resolution Color Graphics
   Image Processing/Instrumentation
   Digital Radio Modulation/Video Signal Reconstruction