MITSUBISHI <Dig./Ana. INTERFACE>
M62364FP
8-BIT 8-CH MULTIPLYING D-A CONVERTER WITH BUFFER AMPLIFIERS
GENERAL DESCRIPTION
The M62364FP is a CMOS 8-bit, 8-ch D/A converter having a
multiplying function and output buffer amplifiers. It has a serial data
input and can easily communicate with a microcontroller by the
simple three-wiring method (DI, CLK, LD).
The output buffer amplifiers operating in AB-class has both sinking
and driving capabilities of 1.0mA or more and can operate in a whole
supply range from VDD to GND.
The IC is suitable for a use in automatic adjustment applications in
conjunction with a MCU by utilizing the terminal DO for a cascading
connection.
FEATURES
• Three-wiring serial data transmission
• Doubled precision 8-ch D/A converter employing an R-2R with
higher-order segment method
• 8 buffer amplifiers operating in a whole supply voltage range from
VDD to GND
• 4-quadrant multiplication
APPLICATION
Digital to analog conversion for consumer and industrial equipment.
Gain setting and automatic adjustment of display-monitor and CTV.
PIN CONFIGURATION (TOP VIEW)
VIN1
VOUT1
VOUT2
VIN2
VDD
CLK
DI
VIN3 VIN6
VOUT3 VOUT6
VOUT4 VOUT5
VIN4 VIN5
1
2
3
4
5
6
7
8
9
10
11
12
Outline 24P2Q (FP)
M62364FP
24
23
22
21
20
19LDRESET
18
17
16
15
14
13
VIN8
VOUT8
VOUT7
VIN7
GND
VDAref
DO
BLOCK DIAGRAM
DI
8
CLK
7
RESET
19
D-A CONVERTER
VIN1 VOUT1 VIN8 VOUT8
VDD
5
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11
8-bit Latch
1 2
12-bit SHIFT REGISTER
ADDRESS DECODER
8-bit Latch
D-A CONVERTER
24
23
20
GND
17
18
6
DO
LD
VDAref
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8-BIT 8-CH MULTIPLYING D-A CONVERTER WITH BUFFER AMPLIFIERS
EXPLANATION OF TERMINALS
MITSUBISHI <Dig./Ana. INTERFACE>
M62364FP
PIN No. Symbol
D I
8
Do
17
CLK
7
L D
6
RESET
19
VOUT1
2
VOUT2
3
VOUT3
10
VOUT4
11
VOUT5
14
VOUT6
15
VOUT7
22
VOUT8
23
VDD
5
Function
Serial data input
Serial data output
Shift clock input. Input data of DI are taken into the 12-bit shift register
on a rising edge of the clock.
A low state enables data loading to the 12-bit shift register.
During a rising edge of LD, the data will be loaded to the output register.
Reset 8-bit latches
D/A Converter Output with 8-bit resolution
Power Supply
20
12
13
16
21
24
18
GND
VIN1
1
VIN2
4
VIN3
9
VIN4
VIN5
VIN6
VIN7
VIN8
VDAref
Ground
D/A Converter Input
D-A Converter Reference Voltage Input
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