STV9211 Datasheet, PDF (13/37 Pages) STMicroelectronics – 150 MHz PIXEL VIDEO CONTROLLER FOR MONITORS IN DC-COUPLING MODE

STV9211
Functional description
Figure 8: Infra-black level adjustment
BLK
IBL max
IBL min
V_ibmin
GND
V_ibmax
Case #1: IBR=1
V_ib
2,20
0.92
0.66
0.40
0
IB0=111
IIIBBB000===000001010
1.3V
IBL
255
Black level
Infra-black level
Case #2: IBR=0
V_ib
IB0=111
2,20
0.92
0.66
0.40
IIIBBB000===000001010
0
1.8V
IBL
255
Adjustment
InfraBlack Range
InfraBlack Offset
InfraBlack Level
Register
name & address
IBR / 14
Selection
-
IBO / 14
-
IBL / 10, 11, 12
Examples #1
IBR=1
IB0=000
Examples #2
IBR=0
IB0=010
min / max
value
1.3 or 1.8 V
0.4 to 2.2 V
(@ IBL=0)
0.40 to 1.70V
0.92 to 2.72 V
Number step / resolution
2 selections
16 (3 bit) / 0.26V
Channel
3 channels
Simultaneously
3 channels
Simultaneously
256 (8 bit) / 5 mV
256 (8 bit) / 7mV
each channel
Independantly
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