Multi-format Video Encoder Six 14-Bit DACs

The ADV7344 is a high speed, digital-to-analog video encoder in a 64-pin LQFP package. Six high speed, NSV, 3.3 V, 14-bit video DACs provide support for composite (CVBS), S-Video (YC), and component (YPrPb/RGB) analog outputs in either standard definition (SD), enhanced definition (ED) or high definition (HD) video formats.

The ADV7344 has a 30-bit pixel input port that can be configured in a variety of ways. SD video formats are supported over a SDR interface and ED/HD video formats are supported over SDR and DDR interfaces. Pixel data can be supplied in either the YCrCb or RGB color spaces.

The ADV7344 also supports embedded EAV/SAV timing codes, external video synchronization signals, and the I2C communication protocol.

In addition, simultaneous SD and ED/HD input and output is supported. 216 MHz (SD and ED) and 297 MHz (HD) oversampling ensures that external output filtering is not required, while full-drive DACs ensure that external output buffering is not required.

Cable detection and DAC auto power-down features keep power consumption to a minimum.

APPLICATIONS

* DVD recorders and players

* High definition Blu-ray DVD players

* HD-DVD players

* 1.8V/3.3V interface support

* 74.25 MHz 20-/30-bit high definition input support

* 6 Noise Shaped Video (NSV) 14-bit video DACs

* NTSC M, PAL B/D/G/H/I/M/N, PAL 60 support

* NTSC and PAL square pixel operation

* Multiformat video input support

* Multiformat video output support

* Simultaneous SD and ED/HD operation