M62354AGP Datasheet, PDF (1/9 Pages) Renesas Technology Corp – 8-bit 6ch D/A Converter with Buffer Amplifiers

M62354AGP
8-bit 6ch D/A Converter with Buffer Amplifiers
REJ03D0871-0201
Rev.2.01
Dec 27, 2007
Description
M62354A is a CMOS structured semiconductor integrated circuit integrating 6 channels of built-in D/A converters with
high performance buffer operational amplifier for each channel output.
3-wire serial interface (DI, CLK, LD) method is used for the transfer format of 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 6ch 8-bit D/A converters
• 6ch 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
V_CC
V_DD
AO6 AO5
AO4
16
15
14
13
12
AO3
V_SS
11
9
D/A
Ch6
L
D/A
5
L
D/A
4
L
(6)
......
Address
decoder
D11 10 9 8 D7 6 5 4 3 2 1 0
12-bit shift register
L
Ch1
D/A
8-bit R-2R
segment
D/A converter
3
8-bit
latch
(6)
8-bit
latch
2
8-bit R-2R
segment
D/A converter
1
2
3
4
5
DO
LD
CLK
DI
AO1
6
AO2
8
GND
REJ03D0871-0201 Rev.2.01 Dec 27, 2007
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