视频 IC Multiformat Video Encoder
Product Details
The ADV7342/ADV7343 are high speed, digital-to-analog video encoders in a 64-lead LQFP package. Six high speed, 3.3 V, 11-bit video DACs provide support for composite CVBS, SVideo Y/C, and component YPrPb/RGB analog outputs in either standard definition SD, enhanced definition ED, or high definition HD video formats.
The ADV7342/ADV7343 each have a 24-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 parts also support embedded EAV/SAV timing codes, external video synchronization signals, and the I2C communication protocol.
In addition, simultaneous SD and ED/HD input and output are 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**
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- DVD recorders and players
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- High definition Blu-ray DVD players
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- HD-DVD players
### Features and Benefits
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- 1.8V/3.3V interface support
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- 74.25 MHz 20-/30-bit high definition input support
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- 6, 11-bit, 297 MHz video DACs
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- NTSC M, PAL B/D/G/H/I/M/N, PAL 60 support
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- NTSC and PAL square pixel operation 24.54 MHz/29.5 MHz
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- Multiformat video input support
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- Multiformat video output support
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- Simultaneous SD and ED/HD operation
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- Programmable features
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- Copy generation management system CGMS
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- Closed captioning and wide screen signaling WSS
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- Integrated subcarrier locking to external video source
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- Qualified for automotive applications
