TW2865-LA3-GR-EVAL
TW2865-LA3-GR-EVAL Datasheet
TW2865
| Part | Datasheet |
|---|---|
TW2865-LA3-GR-EVAL |
TW2865-LA3-GR-EVAL (pdf) |
| Related Parts | Information |
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TW2865-LA3-GR |
TW2865-LA3-GR |
| PDF Datasheet Preview |
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| Techwell Target Applications Embedded DVR Video Server DVR PCI Card TW2865 4-Channel Video Decoder and Audio Codec plus Video Encoder for Security Applications The TW2865 is a 4-in-1 video decoder and audio codec plus video encoder for security surveillance applications. The device includes four high quality NTSC/PAL/SECAM video decoders that convert analog composite video signal to digital component YCbCr data. Each channel contains a 10-bit ADC and proprietary clamp/gain controller and utilizes 4H comb filter for separating luminance & chrominance to reduce cross noise artifacts. The TW2865 adopts image enhancement techniques such as IF compensation filter, CTI and programmable peaking. In addition, TW2865 includes one NTSC/PAL video encoder with two 10-bit DACs to support CVBS and YC output. The TW2865 also includes an audio codec which has five audio ADCs and one DAC. A built-in audio controller can generate digital outputs for recording/mixing and accepts digital input for playback. New Features Integrated one video encoder and two 10-bit video CMOS DACs Proprietary fast video locking system for non-realtime application Integrated five audio ADCs and one audio DAC Low power consumption Typical Application Diagram C T V Monitor Video In Ch1- 4 Audio In Ch1- 4 Mic rophone S peaker S-Video / CVBS B T 5 6 27MHz TW 2865 B T 5 6 27/54/108M H z MUX/ CODEC HOST Processor Network TecThWw28e6l5l Techwell Video Decoders TW2865 4-Channel Video Decoder and Audio Codec plus Video Encoder for Security Applications Accepts all NTSC M/4.43 / PAL B/D/G/H/I/K/L/M/N/60 /SECAM standards with auto detection Integrated four video analog anti-aliasing filters and 10-bit ADCs High performance adaptive 4H comb filters for all NTSC/PAL standards IF compensation filter for improvement of color demodulation Color Transient Improvement CTI and automatic white peak control Programmable hue, saturation, contrast, brightness and sharpness Proprietary fast video locking system for non-realtime application Supports the standard ITU-R BT.656 format or time multiplexed output with 54/108MHz. Provides simultaneous four channel Full D1 and CIF time-multiplexed outputs with 54MHz TW2865 Block Diagram VIN1 A VIN1 B AIN1 AADDCC 4H Comb Video D ecoder D ecim ation Filter VIN2 A VIN2 B AIN2 AADDCC 4H Comb Video D ecoder D ecim ation Filter VIN3 A VIN3 B AIN3 AADDCC 4H Comb Video D ecoder D ecim ation Filter |
| More datasheets: 0664.800HXSL | 0664.800ZRLL | 066402.5HXSL | 0664001.HXLL | 0664001.HXSL | 066401.6HXLL | CRF05-1AS | Z1002-00 | DSI17-08A | DS17-08A |
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