TDA8771A Philips Semiconductors, TDA8771A Datasheet - Page 3

• Manufacturer Part Number: TDA8771A
• Description: Triple 8-bit video Digital-to-Analog Converter DAC
• Manufacturer: Philips Semiconductors

Philips Semiconductors
BLOCK DIAGRAM
1996 Jan 25
handbook, full pagewidth
Triple 8-bit video Digital-to-Analog
Converter (DAC)
(bits R4 to R7)
(bits G4 to G7)
(bits R0 to R3)
(bits G0 to G3)
(bits B0 to B3)
(bits B4 to B7)
digital inputs
digital inputs
digital inputs
digital inputs
digital inputs
digital inputs
GREEN
GREEN
BLUE
BLUE
RED
RED
4
4
4
4
4
4
12 to 9
16 to 13
24 to 21
20 to 17
30,29
26,25
8
5 to 3
TDA8771A
34, 37, 38,41
connected
not
4
4
4
V DDA
DECODER
DECODER
DECODER
32,35,39,43
MSB
MSB
MSB
Fig.1 Block diagram.
reference voltage
decoupling input
REFERENCE
V
BANDGAP
DDD
(V
DECODER
DECODER
DECODER
3
RESISTOR
RESISTOR
RESISTOR
STRING
STRING
STRING
REF
7,27
LSB
LSB
LSB
33
4
4
4
)
V SSA
clock input
2,42
31
V
SSD
6,28
40
36
44
1
MBH039
current input
analog output
analog output
analog output
reference
(I
GREEN
BLUE
REF
RED
Product specification
)
TDA8771A