參數(shù)資料
型號： TVP5158PNP
廠商： TEXAS INSTRUMENTS INC
元件分類： 顏色信號轉(zhuǎn)換
英文描述： COLOR SIGNAL DECODER, PQFP128
封裝： GREEN, PLASTIC, HTQFP-128
文件頁數(shù)： 64/108頁
文件大?。?/td> 1395K
代理商： TVP5158PNP
SLES243E
– JULY 2009 – REVISED MARCH 2011
Table 4-35. AGC White Peak Processing
Subaddress
2Dh
Default
F2h
7
6
5
4
3
2
1
0
Composite
Luma peak A
Reserved
Color burst A
Sync height A
Luma peak B
Color burst B
Sync height B
peak
If all four bits of the lower nibble are set to logic 1 (that is, no amplitude reference selected), then the front-end analog and digital gains are
automatically set to nominal values.
If all four bits of the upper nibble are set to logic 1 (that is, no amplitude reference selected), then the back-end gain is set automatically to
unity. If the input sync height is greater than 100% and the AGC-adjusted output video amplitude becomes less than 100%, then the
back-end scale factor attempts to increase the contrast in the back-end to restore the video amplitude to 100%.
Luma peak A
Use of the luma peak as a video amplitude reference for the back-end feed-forward type AGC algorithm
0
Enabled (default)
1
Disabled
Color burst A
Use of the color burst amplitude as a video amplitude reference for the back-end
0
Enabled (default)
1
Disabled
Sync height A
Use of the sync-height as a video amplitude reference for the back-end feed-forward type AGC algorithm
0
Enabled (default)
1
Disabled
Luma peak B
Use of the luma peak as a video amplitude reference for front-end feedback type AGC algorithm
0
Enabled (default)
1
Disabled
Composite peak
Use of the composite peak as a video amplitude reference for front-end feedback type AGC algorithm
0
Enabled (default)
1
Disabled
Color burst B
Use of the color burst amplitude as a video amplitude reference for front-end feedback type AGC algorithm
0
Enabled (default)
1
Disabled
Sync height B
Use of the sync-height as a video amplitude reference for front-end feedback type AGC algorithm
0
Enabled (default)
1
Disabled
Copyright
2009–2011, Texas Instruments Incorporated
Internal Control Registers
59
Product Folder Link(s): TVP5158 TVP5157 TVP5156
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