M62352AGP
8-bit 12ch D/A Converter with Buffer Amplifiers
REJ03D0867-0300
Rev.3.00
Mar 25, 2008
Description
M62352A is a CMOS structured semiconductor integrated circuit integrating 12 channels of built-in D/A converters
with high performance buffer operational amplifier or each channel output.
The 3-wire serial interface (DI, CLK, LD) method is used for the transfer format or digital data to allow connection
with microcomputer with minimum wiring. DO terminal is provided to allow cascading serial use.
Built-in buffer operational amplifiers are designed to operate or full swing in the whole voltage range from V
CC
to GND
for each input/output. And their higher stability for capacitive load perfectly fits in to the use for electronic volume
(VCA) or the replacement for semi-variable resistor for tuning.
Features
•
•
•
•
•
12-bit serial data input (3 wire serial data transfer method, DI, CLK, LD)
Corresponds to TTL input for digital input (VINH
≥
2 V, VINL
≤
0.8 V)
R-2R + segment method high performance 12ch 8-bit D/A converters
12ch buffer operational amplifiers operating in the whole voltage range from V
CC
to GND
Buffer operational amplifiers with high oscillation stability for capacitive load
Application
Adjustment or control of industrial or home-use electronic equipments such as VTR camera, VTR set, TV, and CRT
display.
Block Diagram
GND
20
AO2
19
AO1
18
DI
17
CLK
16
LD
15
DO
14
AO12
13
AO11
12
V
CC
11
12-bit shift register
D0 1 2 3 4 5 6 D7 D8 9 10 D11
Ch2
8-bit R-2R
+ segment
D/A converter
8-bit
latch
....
(12)
(12)
8-bit
latch
Ch3
8-bit R-2R
+ segment
D/A converter
+
−
1
4
D/A
+
−
+
−
12
11
+
−
D/A
Address
decoder
........
D/A
D/A
L
(8)
L
L
(12)
L
5
L
6
L
7
L
8
L
9
L
10
L
D/A
D/A
D/A
D/A
D/A
D/A
+
−
+
−
+
−
+
−
+
−
+
−
+
−
+
−
1
V
SS
(VrefL)
2
AO3
3
AO4
4
AO5
5
AO6
6
AO7
7
AO8
8
AO9
9
AO10
10
V
DD
(VrefU)
REJ03D0867-0300 Rev.3.00 Mar 25, 2008
Page 1 of 8
RENESAS [ RENESAS TECHNOLOGY CORP ]
