TW2866-LC1-CR INTERSIL | Alldatasheet
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Security Surveillance IC Solutions www.intersil.com Techwell Techwell The TW2866 is Techwell’s second-generation 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 TW2866 adopts image enhancement techniques such as IF compensation filter, CTI and programmable peaking. In addition, TW2866 includes one NTSC/PAL video encoder with two 10-bit DACs to support CVBS and YC output. The TW2866 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. TW2866 4-Channel Video Decoder and Audio Codec plus Video Encoder for Security Applications Target Applications – Embedded DVR – Video Server – DVR PCI Card
Security Surveillance IC Solutions Video Decoder Video Encoder TW2866 Block Diagram Audio Codec Other Features Order Information TW2866 4-Channel Video Decoder and Audio Codec plus Video Encoder for Security Applications © 2009 Intersil Americas Inc. All Rights Reserved. The following are trademarks or registered trademarks of Intersil Americas Inc.: Intersil, Intersil logo, “i” and Design. All other trademarks are the property of the respective trademark owners. www.intersil.com 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. – NTSC/PAL Video Encoder – CVBS and S-video Support – Integrated five audio ADCs and one audio DAC – Provides multi-channel audio mixed analog output – Supports I2S/DSP Master/Slave interface for record output and playback input. – PCM 8/16 bit and u-Law/A-Law 8bit for audio word length – Programmable audio sample rate that covers popular frequencies of 8/16/32/44.1/48kHz – 2x/4x analog clock PLL for 108MHz clock output – Supports a two-wire serial host interface – 1.2V, 3.3V Supply – Low power consumption – Part Number: TW2866 – Package: 128-pin LQFP