TW6801
PCI Video Decoder with TS Input Support

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 Video Decoder
- NTSC (M, 4.43) and PAL (B, D, G, H, I, M, N, N combination), PAL (60), SECAM support with automatic format detection
- Software selectable analog inputs allows any of the following combinations, e.g. 4 CVBS or 
(3 CVBS and 1 Y/C ) 
- Two 10-bit ADCs and analog clamping circuit for CVBS and S-Video YC input selection 
- Fully programmable static gain or automatic gain control for the Y channel
- Programmable white peak control for the Y or CVBS channel 
- 4-H adaptive comb filter Y/C separation
- PAL delay line for color phase error correction 
- Image enhancement with 2D peaking and CTI
- Digital sub-carrier PLL for accurate color decoding 
- Digital Horizontal PLL for synchronization processing and pixel sampling
- Advanced synchronization processing and sync detection for handling non-standard and weak signal 
- Programmable hue, brightness, saturation, contrast, sharpness, Gamma control, and noise suppression 
- Automatic color control and color killer 
- Detection of level of copy protection according to Macrovision standard 
- Programmable output cropping 
 Target Applications
- TV Tuner Card
 PCI 
- PCI Rev. 2.2-3.0 compliant 
- ACPI support 
- Integrated Video/Audio/TS DMA controller 
 TS data capture
- Serial/Parallel TS(Transport Stream) data capture
 Miscellaneous
- Programmable RGB and YCbCr color space conversion 
- GPIO ITU-R BT656 data input/output
- 24 pin GPIO
- 400Kbps Two-wire MPU serial bus Master interface
- Remote control data receiver
- Power-down mode 
- Field locked audio clock generation 
- Single 27MHz crystal for all standards 
- 5V tolerant I/O 
- 2.5/3.3 V power supply 
- 128-pin PQFP package 
 Video scaler 
- High quality horizontal filtered scaling with arbitrary scale down ratio 
- Phase accuracy better than 1/32 pixel
- Selectable anti-alias filter
 Block Diagram (click on image for larger view)

 

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