Datasheet

TVP5147M1
www.ti.com SLES140G –JULY 2005–REVISED FEBRUARY 2012
Table 2-26. Chrominance Processing Control 1 Register
Subaddress 0Dh
Default 00h
7 6 5 4 3 2 1 0
Reserved Color PLL Chroma adaptive comb enable Reserved Automatic color gain
reset control [1:0]
Color PLL reset:
0 = Color subcarrier PLL not reset (default)
1 = Color subcarrier PLL reset
Chrominance adaptive comb enable:
This bit is effective on composite video only.
0 = Enable (default)
1 = Disable
Automatic color gain control (ACGC) [1:0]:
00 = ACGC enabled (default)
01 = Reserved
10 = ACGC disabled, ACGC set to the nominal value
11 = ACGC frozen to the previously set value
Table 2-27. Chrominance Processing Control 2 Register
Subaddress 0Eh
Default 0Eh
7 6 5 4 3 2 1 0
Reserved PAL WCF Chrominance filter select [1:0]
compensation
PAL compensation:
0 = Disabled
1 = Enabled (default)
Wideband chroma LPF filter (WCF):
0 = Disabled
1 = Enabled (default)
Chrominance filter select [1:0]:
00 = Disabled
01 = Notch 1
10 = Notch 2 (default)
11 = Notch 3
See Figure 2-6 and Figure 2-7 for characteristics.
Table 2-28. R/Pr Gain (Color Saturation) Register
Subaddress 10h
Default 80h
7 6 5 4 3 2 1 0
R/Pr gain [7:0]
R/Pr component gain (color saturation):
0000 0000 = minimum
1000 0000 = default
1111 1111 = maximum
For component video, the total R/Pr gain relative to the nominal R/Pr gain as a function of the R/Pr gain [7:0] setting is as follows:
R/Pr Gain = (nominal_chrominance_gain) × (R/Pr gain [7:0] / 128)
Copyright © 2005–2012, Texas Instruments Incorporated Functional Description 47
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