thetw2868 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 videodecoders 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 flter for separatingluminance & chrominance to reduce cross noise artifacts. the tw2868 adopts image enhancement techniques such as if compensation flter, cti and programmable peaking. in addition, tw2868 includesone ntsc/pal video encoder with two 10-bit dacs to support cvbs and yc output. the tw2868 also includes an audio codec which has fve audio adcs and one dac. a built-in audio controller can generatedigital outputs for recording/mixing and accepts digital input for playback.
c&s electronics technology ltd; co. 张生 186 66297229

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上海芯防电子技术有限公司深圳办
张超
13724212401
深圳福田区中航路都会100B座22D