OBSOLETE PRODUCT RECOMMENDED REPLACEMENT PARTS TW2867C, TW2984, TW2964, TW2965 To request the full datasheet, please visit www.intersil.com/products/TW2867 4-Channel Video Decoders and Audio Codecs for Security Applications TW2867 The TW2867 includes four high quality NTSC/PAL/SECAM video decoders that convert analog composite video signal to digital component YCbCr data for security applications. Each channel contains 10-bit ADC and proprietary clamp and gain controllers and utilizes 4H comb filter for separating luminance and chrominance to reduce cross noise artifacts. The TW2867 adopts the image enhancement techniques such as IF compensation filter, CTI and programmable peaking. The TW2867 also includes audio CODEC, which has five audio analog-to-digital converters and one digital-to-analog converter. A built-in audio controller can generate digital outputs for recording/mixing and accepts digital input for playback. Supports I2S/DSP master/slave interface for record output and playback input PCM 8-/16-bit and u-Law/A-Law 8-bit for audio word length Programmable audio sample rate that covers popular frequencies of 8/16/32/44.1/48kHz Supports a two-wire serial host interface Integrated clock PLL for 108MHz clock output Ultra low power consumption (typical 431.88mW) 128 pin LQFP package Features 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 CMOS ADCs High performance adaptive 4H comb filters for all NTSC/PAL standards IF compensation filter for improvement of color demodulation Color Transient Improvement (CTI) 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 Integrated five audio ADCs and one audio DAC Provides multichannel audio mixed analog output 1 FN7748.0 December 8, 2010 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC. 2010. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. TW2867 VIN3B VIN4A VIN4B MUX AIN3 ADC ADC 4H Comb Video Decoder ADC ADC Decimation Filter ADC ADC 4H Comb Video Decoder ADC ADC Decimation Filter ADC ADC 4H Comb Video Decoder AIN4 ADC ADC Decimation Filter AIN5 ADC Decimation Filter AOUT DAC Interpolation Filter BT.656 Interface VIN3A MUX AIN2 Decimation Filter MPP Interface VIN2B ADC ADC VD1[7:0] VD2[7:0] VD3[7:0] VD4[7:0] MPP1 MPP2 MPP3 MPP4 Clock PLL Clock Generator VIN2A MUX AIN1 4H Comb Video Decoder CLKPOn XTO XTI CLKNOn Host Interface VIN1B ADC ADC I2S Interface VIN1A MUX Block Diagram SCLK SDAT IRQ ACLKR ASYNR ADATR ADATM ACLKP ASYNP ADATP All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9001 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality. Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com