TVP5158
- Common Device Features (TVP5158, TVP5157, and TVP5156)
- Four separate video decoder channels having the following features for each channel
- Accepts NTSC (J, M, 4.43) and PAL (B, D, G, H, I, M, N, Nc, 60) video data
- Composite video inputs, pseudo-differential video inputs to improved noise immunity
- High-speed 10-bit ADC
- Fully differential CMOS analog preprocessing channels with clamping
- Integrated anti-aliasing filter
- 2D 5-line (5H) adaptive comb filter
- Noise reduction and auto contrast
- Robust automatic video standard detection (NTSC/PAL) and switching
- Programmable hue, saturation, sharpness, brightness, and contrast
- Luma-peaking processing
- Patented architecture for locking to weak, noisy, or unstable signals
- Four independent scalers support horizontal and/or vertical 2:1 downscaling
- Channel multiplexing capabilities with metadata insertion
- Pixel-interleaved mode supports up to four-channel D1 multiplexed 8-bit output at 108 MHz
- Supports concurrent NTSC and PAL inputs
- Support crystal interface with on-chip oscillator and single clock input mode
- Single 27-MHz clock input or crystal for all standards and all channels
- Internal phase-locked loop (PLL) for line-locked clock (separate for each channel) and sampling
- Standard programmable video output format
- ITU-R BT.656, 8-bit 4:2:2 with embedded syncs
- YCbCr 16-bit 4:2:2 with embedded syncs
- Macrovision copy protection detection
- 3.3-V Compatible I/O
- 128-pin TQFP package
- Available in commercial (0°C to 70°C) temperature range
- Four separate video decoder channels having the following features for each channel
- Additional TVP5158 and TVP5157 Specific Features
- Integrated four-channel audio ADC with audio sample rate of 8 kHz or 16 kHz
- Support Master and Slave mode I2S Output
- Support audio cascade connection
- Additional TVP5158 Specific Features
- Enhanced channel multiplexing capability – Line-interleaved mode
- Four-channel D1 multiplexed output at 8 bit at 108 MHz
- Video cascade connection for 8-Ch CIF, 8-Ch Half-D1, and 8-Ch CIF + 1-Ch D1 outputs
- Also available in Industrial (-40°C to 85°C) temperature range
- Qualified for Automotive Applications: (AEC-Q100 Rev G – TVP5158IPNPQ1, TVP5158IPNPRQ1)
The TVP5158, TVP5157, and TVP5156 devices are 4-channel high-quality NTSC/PAL video decoders that digitize and decode all popular base-band analog video formats into digital video output. Each channel of this decoder includes 10-bit 27-MSPS A/D converter (ADC). Preceding each ADC in the device, the corresponding analog channel contains an analog circuit that clamps the input to a reference voltage and applies the gain.
Composite input signal is sampled at 2x the ITU-R BT.601 clock frequency, line-locked alignment, and is then decimated to the 1x pixel rate. CVBS decoding uses five-line adaptive comb filtering for both the luma and chroma data paths to reduce both cross-luma and cross-chroma artifacts. A chroma trap filter is also available. On CVBS inputs, the user can control video characteristics such as contrast, brightness, saturation, and hue via an I2C host port interface. Furthermore, luma peaking (sharpness) with programmable gain is included.
All four channels are independently controllable. These decoders share a single clock input for all channels and for all supported standards.
TVP5158 provides a glueless audio and video interface to TI DaVinci video processors. Video output ports support 8-bit ITU-R BT.656 and 16-bit 4:2:2 YCbCr with embedded synchronization. TVP5158 supports multiplexed pixel-interleaved and line-interleaved mode video outputs with metadata insertion. TVP5158 and TVP5157 integrate 4-Ch audio ADCs to reduce the BOM cost for surveillance market. Multiple TVP5158 devices can be cascade connected to support up to 8-Ch Video or 16-Ch audio processing.
Noise reduction and auto contrast functions improve the video quality under low light condition which is very critical for surveillance products.
The TVP5158, TVP5157, and TVP5156 can be programmed by using a single I2C serial interface. I2C commands can be sent to one or more decoder cores simultaneously, reducing the amount of I2C activity necessary to configure each core. This is especially useful for fast downloading modified firmware to the decoder cores.
TVP5158, TVP5157, and TVP5156 use 1.1-V, 1.8-V, and 3.3-V power supplies for the analog/digital core and I/O. These devices are available in a 128-pin TQFP package.
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技術資料
| 種類 | タイトル | 最新の英語版をダウンロード | 日付 | |||
|---|---|---|---|---|---|---|
| * | データシート | TVP5158, TVP5157, TVP5156 Four-Channel PAL/NTSC Video Decoder データシート (Rev. G) | 2013年 4月 24日 | |||
| EVM ユーザー ガイド (英語) | TVP5158EVM User's Guide (Rev. A) | 2014年 3月 27日 | ||||
| アプリケーション・ノート | TVP5158 Patch Code Download Guidelines (Rev. A) | 2010年 12月 14日 | ||||
| アプリケーション・ノート | TVP5158 PCB Layout Guidelines (Rev. A) | 2009年 8月 5日 |
設計と開発
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