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TW6805
66MHz PCI Video Decoder with Audio and TS Input Support
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Pricing and availability
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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
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Key Features
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- Fast video locking speed for non-real time
switching application
- Lowest power consumption amongst PCI
decoders
- Strong weak and non standard signal
- 66 MHZ PCI Bus Speed Support
- Integrated audio decoding
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Target
Applications |
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- PCI DVR Card |
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PCI
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- 66MHz/33MHz PCI with M66EN interface
- PCI Rev. 2.2-3.0 compliant
- ACPI support
- Integrated Video/Audio/TS DMA controller
- Support both selectable one real-time video and 4x switching non real-time video
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TS
data capture |
- Software selectable 4 channel analog sound inputs
- 10-bit ADC for Analog Sound digitizing
- Up to 24-bit I2S Stereo Digital input by I2S master or I2S slave
- I2S Audio output.
- Programmable Sampling rate generation
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Video
scaler |
- High quality horizontal filtered scaling with arbitrary scale down ratio
- Phase accuracy better than 1/32 pixel
- Selectable anti-alias filter
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Miscellaneous
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- 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
- 1.8 V power supply
- 128-pin LQFP package
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Application Diagram |
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Block Diagram
(click on image for larger
view) |
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