參數(shù)資料
型號(hào)： TVP5158PNP
廠商： TEXAS INSTRUMENTS INC
元件分類： 顏色信號(hào)轉(zhuǎn)換
英文描述： COLOR SIGNAL DECODER, PQFP128
封裝： GREEN, PLASTIC, HTQFP-128
文件頁數(shù)： 56/108頁
文件大?。?/td> 1395K
代理商： TVP5158PNP
SLES243E
– JULY 2009 – REVISED MARCH 2011
Table 4-15. Luminance Contrast
Subaddress
11h
Default
80h
7
6
5
4
3
2
1
0
Contrast [7:0]
This register works for the luminance. See subaddress 12h.
0000 0000
0 (minimum contrast)
1000 0000
128 (default)
1111 1111
255 (maximum contrast)
The total luminance gain relative to the nominal luminance gain as a function of the Contrast [7:0] setting is as follows:
Luminance Gain = (nominal_luminance_gain)
× [Contrast[7:0] / 64 / (2MC) + MC - 1]
Where MC is the contrast multiplier setting in the Brightness and Contrast Range Extender register at I
2C subaddress 12h.
Table 4-16. Brightness and Contrast Range Extender
Subaddress
12h
Default
00h
7
6
5
4
3
2
1
0
Contrast
Reserved
Brightness multiplier [3:0]
multiplier
Contrast multiplier [4] (MC)
Increases the contrast control range.
0
2x contrast control range (default), Gain = n/64
– 1 where n is the contrast control and 64 ≤ n ≤255
1
Normal contrast control range, Gain = n/128 where n is the contrast control and 0
≤ n ≤ 255
Brightness multiplier [3:0] (MB)
Increases the brightness control range from 1x to 16x.
0h
1x (default)
1h
2x
3h
4x
7h
8x
Fh
16x
Note: The brightness multiplier should be set to 3h for 8-bit outputs.
Table 4-17. Chrominance Saturation
Subaddress
13h
Default
80h
7
6
5
4
3
2
1
0
Saturation [7:0]
This register works for the chrominance.
0000 0000
0 (no color)
1000 0000
128 (default)
1111 1111
255 (maximum)
The total chrominance gain relative to the nominal chrominance gain as a function of the Saturation [7:0] setting is as follows:
Chrominance Gain = (nominal_chrominance_gain)
× (Saturation[7:0] / 128)
Copyright
2009–2011, Texas Instruments Incorporated
Internal Control Registers
51
Product Folder Link(s): TVP5158 TVP5157 TVP5156
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