bt829bkrf ETC-unknow, bt829bkrf Datasheet - Page 28
bt829bkrf
Manufacturer Part Number
bt829bkrf
Description
Video Streamii Decoders
Manufacturer
ETC-unknow
Datasheet
1.BT829BKRF.pdf
(127 pages)
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1.0 Functional Description
1.6 Y/C Separation and Chroma Demodulation
Figure 1-4. Y/C Separation and Chroma Demodulation for Composite Video
Figure 1-5. Y/C Separation Filter Responses
Composite
Luma Notch Filter Frequency Responses for NTSC and PAL/SECAM
NTSC
1.6 Y/C Separation and Chroma Demodulation
Y/C separation and chroma decoding is illustrated in Figure 1-4. Bandpass and
notch filters are implemented to separate the composite video stream. Figure 1-5
displays the filter responses. The optional chroma comb filter is implemented in
the vertical scaling block. See the Video Scaling, Cropping, and Temporal Deci-
mation section in this chapter.
PAL/SECAM
Band-Pass Filter
Notch Filter
D829BDSA
Chroma Band Pass Filter Frequency Responses for NTSC and PAL/SECAM
cos
sin
Low-Pass Filter
Low-Pass Filter
NTSC
VideoStream II Decoders
Bt829B/827B
PAL/SECAM
Y
U
V
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