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| 型号： | TVP5160PNP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 颜色信号转换 |
| 英文描述： | COLOR SIGNAL DECODER, PQFP128 |
| 封装： | GREEN, PLASTIC, HTQFP-128 |
| 文件页数： | 82/111页 |
| 文件大小： | 1400K |
| 代理商： | TVP5160PNP |
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SLES135E
– FEBRUARY 2005 – REVISED APRIL 2011
Table 3-83. AGC White Peak Processing
Subaddress
74h
Default
00h
7
6
5
4
3
2
1
0
Luma peak A
Reserved
Color burst A
Sync height A
Luma peak B
Composite
Color burst B
Sync height B
peak
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
NOTE: Not available for SECAM, component and B/W video sources.
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
NOTE: Required for CVBS video sources
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
NOTE: Not available for SECAM, component and B/W video sources
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
NOTE: If all 4 bits of the lower nibble are set to 1111b (that is, no amplitude reference selected), then the front-end analog and digital
gains are automatically set to nominal values.
If all 4 bits of the upper nibble are set to 1111b (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%.
Table 3-84. F-Bit and V-Bit Control
Subaddress
75h
Default
16h
7
6
5
4
3
2
1
0
Reserved
1
F and V [1:0]
1
Reserved
F and V [1:0]
F AND V(1)
LINES PER FRAME
F BIT
V BIT
Standard
ITU-R BT 656
ITU-R BT.656
00 =
Nonstandard even
Forced to 1
Switch at field boundary
Nonstandard odd
Toggles
Switch at field boundary
Standard
ITU-R BT 656
ITU-R BT.656
01 = (default)
Nonstandard
Toggles
Switch at field boundary
Standard
ITU-R BT 656
ITU-R BT.656
10 =
Nonstandard
Pulsed mode
Switch at field boundary
11 =
Reserved
(1)
F and V control bits are only enabled for F-bit control modes 01 and 10 (see register 69h).
72
Internal Control Registers
Copyright
2005–2011, Texas Instruments Incorporated
focus.ti.com: TVP5160
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