DATASHEET
TW2867C
4-Channel Video Decoders and Audio Codecs For
Security Applications
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 & 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. FN8257
Rev. 0.00
Feb 9, 2012 п‚ PCM 8/16 bit and u-Law/A-Law 8bit for audio
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