TVP5146 Datasheet, PDF (47/103 Pages) Texas Instruments – NTSC/PAL / SECAM 4 X 10 BIT DIGITAL VIDEO DECODER WITH MACROVISION DETECTION YPBPR/RGB INPUTS 5 LINE COMB FILTER AND SCART SUPPORT

2.11.8 Luminance Processing Control 2 Register
Subaddress 07h
Default
00h
7
6
Luma filter select [1:0]
5
4
Reserved
3
2
Peaking gain (sharpness) [1:0]
1
0
Reserved
Luma filter selected [1:0]:
00 = Luminance adaptive comb enabled (default on CVBS)
01 = Luminance adaptive comb disabled (trap filter selected)
10 = Luma comb/trap filter bypassed (default on S-video, component mode, and SECAM)
11 = Reserved
Peaking gain (sharpness) [1:0]:
00 = 0 (default)
01 = 0.5
10 = 1
11 = 2
2.11.9 Luminance Processing Control 3 Register
Subaddress 08h
Default
02h
7
6
5
4
3
2
1
0
Reserved
Trap filter select [1:0]
Trap filter select [1:0] selects one of the four trap filters to produce the luminance signal by removing the chrominance
signal from the composite video signal. The stopband of the chroma trap filter is centered at the chroma subcarrier
frequency with the stopband bandwidth controlled by the two control bits.
Trap filter stopband bandwidth (MHz):
Filter select [1:0]
00 =
01 =
10 = (default)
11 =
NTSC ITU-R BT.601
1.2129
0.8701
0.7183
0.5010
NTSC Square pixel
1.1026
0.7910
0.6712
0.4554
PAL ITU-R BT.601
1.2129
0.8701
0.7383
0.5010
PAL Square pixel
1.3252
0.9507
0.8066
0.5474
2.11.10 Luminance Brightness Register
Subaddress 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)
2−31