Datasheet

TVP5147M1
SLES140G –JULY 2005–REVISED FEBRUARY 2012 www.ti.com
Table 2-23. Luminance Contrast Register
Subaddress 0Ah
Default 80h
7 6 5 4 3 2 1 0
Contrast [7:0]
Contrast [7:0]:
This register works for CVBS and S-Video luminance. See subaddress 2Fh.
0000 0000 = 0 (minimum contrast)
1000 0000 = 128 (default)
1111 1111 = 255 (maximum contrast)
For composite and S-Video outputs, 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 / (2^M
C
) + M
C
– 1]
Where M
C
is the contrast multiplier setting in the Brightness and Contrast Range Extender register at I
2
C subaddress 2Fh.
Table 2-24. Chrominance Saturation Register
Subaddress 0Bh
Default 80h
7 6 5 4 3 2 1 0
Saturation [7:0]
Saturation [7:0]:
This register works for CVBS and S-Video chrominance.
0000 0000 = 0 (no color)
1000 0000 = 128 (default)
1111 1111 = 255 (maximum)
For composite and S-Video outputs, 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)
Table 2-25. Chroma Hue Register
Subaddress 0Ch
Default 00h
7 6 5 4 3 2 1 0
Hue [7:0]
Hue [7:0]:
Does not apply to a component or SECAM video
0111 1111 = +180 degrees
0000 0000 = 0 degrees (default)
1000 0000 = –180 degrees
46 Functional Description Copyright © 2005–2012, Texas Instruments Incorporated
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