BU2500FV Datasheet, PDF (2/4 Pages) Rohm – 8bit 12-channel D/A converter

Optical disc ICs
zBlock diagram
BU2500FV / BU2501FV
GND
AO2
AO1
DI
20
19
18
17
CLK
LD
16
15
Do
AO12
AO11
Vcc
14
13
12
11
8bit R-2R
D/A CONVERTER
ch2
8bit Latch
D/A
1
L
12bit
SHIFT REGISTER
D0 1 2 3 4 5 6 7 D8 9 10 11
ADDRESS
DECODER
D/A
12
L
D/A
11
L
8bit Latch
ch3
8bit R-2R
D/A CONVERTER
L
4
D/A
BUFFER
OPERATIONAL
AMPLIFIER
L
5
D/A
L
6
D/A
L
7
D/A
L
8
D/A
L
9
D/A
L
10
D/A
1
2
3
4
5
6
7
8
9
10
Vss
(VrefL)
AO3
AO4
AO5
AO6
AO7
AO8
AO9
AO10
VDD
(VrefH)
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