Datasheet

59
SLES084C − August 2007 TVP5146
2.11.53 AFE Fine Gain for Pb_B Register
Subaddress 4Ah–4Bh
Default 900h
Subaddress 7 6 5 4 3 2 1 0
4Ah FGAIN 1 [7:0]
4Bh Reserved FGAIN 1 [11:8]
FGAIN 1 [11:0]: This fine gain applies to component Pb/B.
Fine_Gain = (1/2048) * FGAIN 1, where 0  FGAIN 1  4095
This register works only in manual gain control mode. When AGC is active, writing to any value
is ignored.
1111 1111 1111 = 1.9995
1100 0000 0000 = 1.5
1001 0000 0000 = 1.125 (default)
1000 0000 0000 = 1
0100 0000 0000 = 0.5
0011 1111 1111 to 0000 0000 0000 = Reserved
2.11.54 AFE Fine Gain for Y_G_Chroma Register
Subaddress 4Ch–4Dh
Default 900h
Subaddress 7 6 5 4 3 2 1 0
4Ch FGAIN 2 [7:0]
4Dh Reserved FGAIN 2 [11:8]
FGAIN 2 [11:0]: This gain applies to component Y/G channel or S-video chroma.
Fine_Gain = (1/2048) * FGAIN 2, where 0  FGAIN 2  4095
This register works only in manual gain control mode. When AGC is active, writing to any value
is ignored.
1111 1111 1111 = 1.9995
1100 0000 0000 = 1.5
1001 0000 0000 = 1.125 (default)
1000 0000 0000 = 1
0100 0000 0000 = 0.5
0011 1111 1111 to 0000 0000 0000 = Reserved