MITSUBISHI <Dig./Ana. INTERFACE>
M62392P,FP
8-BIT 12CH I
2
C BUS D-A CONVERTER WITH BUFFER AMPLIFIERS
GENERAL DESCRIPTION
The M62392P,FP is a CMOS 12-channel D-A converter
with output buffer amplifiers.
It can communicate with a microcontroller via few wiring
thanks to the adoption of the two-line I
2
C BUS.
The output buffer amplifier employs AB class output with
sinking and sourcing capability of more than 1.0mA , and
an output voltage range is nearly between ground and
Vref
U
.
Maximum 8 ICs can be connected to a bus by using three
chip-select pins, so that it is possible to handle up to 96
channels.
FEATURES
•
I
2
C-bus serial data method
•
Wide output voltage range
PIN CONFIGURATION (TOP VIEW)
R 1
SCL 2
SDA 3
24 CS0
23 CS1
22 CS2
M62392P,FP
Ao7 4
Ao8 5
Ao9 6
Ao10 7
Ao11 8
Ao12 9
VrefL 10
VrefU1 11
GND 12
Outline
21 V
DD
20 V
CC
19 Ao6
18 Ao5
17 Ao4
16 Ao3
15 Ao2
14 Ao1
13 VrefU2
Nearly between ground and VrefU (0~5V)
•
High output current drive capability
24P
4
D(P)
24P
2
N-B(FP)
over ±1.0mA
•
2 setting voltage ranges by dual input pins
for upper voltage references (Vref
U1
,
U2
)
APPLICATION
Conversion from digital data to analog control data for both consumer and industrial equipment.
Gain control and automatic adjustment of DISPLAY-MONITOR or CTV.
BLOCK DIAGRAM
CS0 CS1 CS2 V
DD
V
cc
24
23
22
21
20
Ao6
19
Ao5
18
Ao4
17
Ao3
16
Ao2
15
Ao1
14
V
refU2
GND
13
12
CHIP SELECT
I
2
C BUS TRANSCEIVER
ADDRESS
DECODER
8bit upper
segment R-2R
8bit Latch
8bit upper
segment R-2R
8bit Latch
8bit upper
segment R-2R
8bit Latch
8bit upper
segment R-2R
8bit Latch
8bit upper
segment R-2R
8bit Latch
8bit upper
segment R-2R
8bit Latch
8
8bit Latch
8bit upper
segment R-2R
8bit Latch
8bit upper
segment R-2R
8bit Latch
8bit upper
segment R-2R
8bit Latch
8bit upper
segment R-2R
8bit Latch
8bit upper
segment R-2R
8bit Latch
8bit upper
segment R-2R
1
2
3
4
5
6
7
8
9
10
11
R
SCL SDA
Ao7
Ao8
Ao9
Ao10
Ao11
Ao12
V
refL
V
refU1
MITSUBISHI ELECTRIC
1997-5-27C.rev ( 1 / 7 )
MITSUBISHI [ MITSUBISHI ELECTRIC SEMICONDUCTOR ]
