TDA8772 Datasheet, PDF (4/20 Pages) NXP Semiconductors – Triple 8-bit video digital-to-analog converter

Philips Semiconductors
Triple 8-bit video digital-to-analog
converter
BLOCK DIAGRAM
handbook, full pagewidth
RED
4 _8–5
digital inputs
(bits R0 to R3)
TDA8772
V _DDA
V _DDD
35,39,43
4
10,32
LSB
DECODER
Product specification
TDA8772
41
reference
current input
(I _REFB )
21
RED
clock input
RED
digital inputs
(bits R4 to R7)
4 _4–1
4
MSB
DECODER
RESISTOR
STRING
GREEN
digital inputs
4 _20–17
(bits G0 to G3)
4
LSB
DECODER
44
RED
analog output
22
GREEN
clock input
GREEN
digital inputs
4 _16–13
(bits G4 to G7)
4
MSB
DECODER
RESISTOR
STRING
BLUE
digital inputs
(bits B0 to B3)
4 31–28
4
LSB
DECODER
40
GREEN
analog output
23
BLUE
clock input
BLUE
digital inputs
(bits B4 to B7)
4 27–24
4
MSB
DECODER
RESISTOR
STRING
36
BLUE
analog output
BLANK
control input
SYNC
control input
12
CONTROL
11 _REGISTER
BANDGAP
REFERENCE
34
38
37,42 9,33
reference current
input for internal
reference
(I _REFA )
reference voltage
decoupling input
(V _REF )
V _SSA
V _SSD
MBB661 - 2
Fig.1 Block diagram.
1997 Mar 06
4