Multiformat HDTV Encoder with Three 11-Bit DACs

The ADV7197 is a triple high-speed digital-to-analog converter for HDTV video from Analog Devices.

The ADV7197 converts any YCrCb HDTV video standard into analog component HDTV video compatible with EIA770.3. The ADV7197 also allows 4:4:4 RGB input with RS-170/RS343-A compatible outputs.

The ADV7197 consists of three 11-Bit DACs capable of a current output of 4.33 mA and 2.66 mA.

Programmable features include a cross hatch test pattern generator, a uniform field/frame test pattern generator, Luma delay, Chroma delay and VBI.

The ADV7197 modes are set up over a serial bi-directional I2C port.

The ADV7197 is packaged in a 52-pin PQFP and requires a +5V or +3.3V supply.

Applications suitable for the ADV7197 are HDTV display devices or projection systems. Digital Video Systems, High Resolution Color Graphics, Image Processing, Instrumentation.

* 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 * 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) * Internal Test Pattern Generator with Color Control