TDA4886 Datasheet, PDF (5/52 Pages) NXP Semiconductors – 140 MHz video controller with I2C-bus

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LIM ²⁴
SDA SCL
6
REGISTER
PEDST
DISO
DISV
FPOL
BLH1
BLH2
12 13
I²C-BUS
6
6-BIT
DAC
SUBCONTRAST
CONTRAST MODULATION
LIMITING
4
4-BIT
DAC
6
6
6
6
6-BIT
DAC
6-BIT
DAC
6-BIT
DAC
6-BIT
DAC
BRIGHTNESS
BLANKING
8
8
8
TDA4886
8-BIT
DAC
8-BIT
DAC
8-BIT
DAC
VI1
6
INPUT
CLAMPING
BLANKING
CONTRAST
OSD
CONTRAST
GAIN
BRIGHTNESS
PEDESTAL
BLANKING
FPOL
VI2
8
INPUT
CLAMPING
BLANKING
CONTRAST
OSD
CONTRAST
GAIN
BRIGHTNESS
VI3
10
INPUT
CLAMPING
BLANKING
CONTRAST
OSD
CONTRAST
GAIN
BRIGHTNESS
fast
blanking
input clamping
DISO
OSD INPUT
1
2
3
4
FBL OSD1 OSD2 OSD3
vertical
blanking
INPUT CLAMPING
VERTICAL BLANKING
5
CLI
PEDST
PEDESTAL
BLANKING
FPOL
FPOL
PEDST
PEDESTAL
BLANKING
FPOL
FPOL
PEDST
FPOL
blanking
output
clamping
BLANKING
OUTPUT CLAMPING
DISV
11
HFB
CHANNEL 1 ^FPOL
REFERENCE
CHANNEL 2 ^FPOL
REFERENCE
CHANNEL 3 ^FPOL
REFERENCE
21
VP1
22
VO1
23
FB/R1
18
VP2
19
VO2
20
FB/R2
15
VP3
16
VO3
BLH2
BLH1
SUPPLY
17
FB/R3
14
GNDX
7
9
MHB185
VP GND
Fig.1 Block diagram.