M62392P_15 Datasheet, PDF (1/9 Pages) Renesas Technology Corp – 8-bit 12ch I2C BUS D/A Converter with Buffer Amplifiers

Preliminary Datasheet
M62392P/FP
R03DS0045EJ0400
8-bit 12ch I²C BUS D/A Converter with Buffer Amplifiers
Rev.4.00
Jun 03, 2011
Description
The M62392P/FP is a CMOS 12 channels D/A converter with output buffer amplifiers. It can communicate with a
microcontroller via few wiring thanks to the adoption of the two-line I²C BUS.
The output buffer amplifier employs AB class output with sinking and sourcing capability of more than 1.0 mA, and an
output voltage range is nearly between ground and VrefU.
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
 I²C BUS serial data method
 Wide output voltage range
Nearly between ground and VrefU (0 to 5 V)
 High output current drive capability over 1.0 mA
 2 setting voltage ranges by dual input pins for upper voltage references (VrefU1, 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 VDD VCC AO6
A_O5
A_O4
A_O3
A_O2
A_O1 VrefU2 _GND
24 23 22 21 20
19
18
17
16
15
14
13 12
Chip select
+−
+−
+−
+−
+−
+−
8-bit upper
segment R-2R
8-bit
latch
8
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
8-bit
latch
8-bit upper
segment R-2R
+−
+−
+−
+−
+−
+−
1
2
3
4
5
6
7
8
9
10 11
R SCL SDA
A_O7
A_O8
A_O9
A_O10
A_O11
A_O12 VrefL VrefU1
R03DS0045EJ0400 Rev.4.00
Jun 03, 2011
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