Datasheet

TVP5151
SLES241E–SEPTEMBER 2009–REVISED OCTOBER 2011 www.ti.com
3.21.9 Luminance Processing Control #2 Register
Address 08h
Default 00h
7 6 5 4 3 2 1 0
Reserved Luminance filter Reserved Peaking gain Mac AGC control
select
Luminance filter select
0 = Luminance comb filter enabled (default)
1 = Luminance chrominance trap filter enabled
Peaking gain (sharpness)
00 = 0 (default)
01 = 0.5
10 = 1
11 = 2
Information on peaking frequency:
ITU-R BT.601 sampling rate: all standards
Peaking center frequency is 2.6 MHz.
Mac AGC control
00 = Auto mode
01 = Auto mode
10 = Force Macrovision AGC pulse detection off
11 = Force Macrovision AGC pulse detection on
3.21.10 Brightness Control Register
Address 09h
Default 80h
7 6 5 4 3 2 1 0
Brightness[7:0]
Brightness[7:0]: This register works for CVBS and S-Video luminance.
1111 1111 = 255 (bright)
1000 0000 = 128 (default)
0000 0000 = 0 (dark)
The output black level relative to the nominal black level (64 out of 1024) as a function of the
Brightness[7:0] setting is as follows:
Black Level = nominal_black_level + (Brightness[7:0] – 128)
36 Functional Description Copyright © 2009–2011, Texas Instruments Incorporated
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