MITSUBISHI /Ana. INTERFACE>
M62392P,FP
8-BIT 12CH I2C 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 I2C 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 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 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 VDD 20 VCC 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
24P4D(P) 24P2N-B(FP)
over ±1. 0mA • 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
24 23 22 21 20
Ao6
19
Ao5
18
Ao4
17
Ao3
16
Ao2
15
Ao1
14
VrefU2 GND
13 12
CHIP SELECT
I2C 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
VrefL VrefU1
MITSUBISHI ELECTRIC
1997-5-27C. rev ( ...
M62392P PDF File
