Datasheet

TVP5146M2
www.ti.com SLES141H –JULY 2005– REVISED FEBRUARY 2012
Table 2-70. AFE Fine Gain for CVBS_Luma Register
Subaddress 50h-51h
Default 900h
Subaddress 7 6 5 4 3 2 1 0
50h FGAIN 4 [7:0]
51h Reserved FGAIN 4 [11:8]
FGAIN 4 [11:0]:
This fine gain applies to CVBS or S-video luma.
Fine_Gain = (1/2048) × FGAIN 4, where 0 ≤ FGAIN 4 ≤ 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
Copyright © 2005–2012, Texas Instruments Incorporated Functional Description 67
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