Datasheet M62356P Datasheet (Mitsubishi)

MITSUBISHI<Dig.Ana.INTERFACE>

The M62356P is an integrated circuit semiconductor of C-MOS
structure with 8 channels of built-in D-A converters.
The input data is a easy-to-use 3-wires serial data transfer
method and it is able to cascading serial use with Do terminal.

Signal gain control of DISPLAY-MONITOR or CTV.

M62356P

8-BIT 8CH D-A CONVERTER

DESCRIPTION

FEATURES

•Digital data transfer format
3-wires serial data transfer method

•Output voltage range 0V to 12V

•Short setting time

•D-A converter high level reference voltage is possess two input
terminal then two reference voltage is possible to input.

Digital voltage supply........................VDD=5V±10%

APPLICATION

Conversion from digital control data to analog control data

for home-use and industrial equipment.

Automatic adjustment by combination with EEPROM and

microcomputer(replacement of conventional half-fixed
resistor).

PIN CONFIGURATION (TOP VIEW)

LD

CLK

DI
Ao5
Ao6

Ao7
Ao8

GND

VrefL

1
2
3
4
5

7

Outline 18P4

18
17
16
15
14
136
12
118
109

R

VDD
DO
Ao4
Ao3
Ao2
Ao1
VrefU1

VrefU2

BLOCK DIAGRAM

R

18

VDD

17

Do

16

Ao4

15

D-A

CONVERTER

8-BIT

LATCH

8-BIT

LATCH

D-A

CONVERTER

Ao3

14

D-A

CONVERTER

8-BIT

LATCH

8-BIT

LATCH

D-A

CONVERTER

Ao2

13

D-A

CONVERTER

8-BIT

LATCH

8-BIT

LATCH

D-A

CONVERTER

Ao1

12

D-A

CONVERTER

8-BIT

LATCH

8-BIT

LATCH

D-A

CONVERTER

VrefU1 VrefU2

11

10

1

LD

2

CLK

3

DI

Ao5

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Ao6

6

Ao7

7

Ao8

8

GND

9

VrefL

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EXPLANATION OF TERMINALS

Pin No. Symbol

3

16

2
1

17
11

8

10

9
18
12
13
14
15

4
5
6

7

DI
DO
CLK
LD

VDD

VrefU1

GND

VrefU2

VrefL

R
Ao1
Ao2
Ao3
Ao4
Ao5
Ao6
Ao7
Ao8

MITSUBISHI<Dig.Ana.INTERFACE>

M62356P

8-BIT 8CH D-A CONVERTER

Function
Serial data input terminal
Serial data output terminal
Serial clock input terminal

LD terminal input high level than latch circuit data load

Digital power supply terminal
D-A converter upper reference voltage input terminal(CH1~CH4)
GND
D-A converter upper reference voltage input terminal(CH5~CH8)

D-A converter lower reference voltage input terminal

Reset terminal

8-bit D-A converter output terminal

ABSOLUTE MAXIMUM RATINGS(Ta=25°C, unless otherwise noted)

Symbol Ratings

VDD

VrefU
VIN Input voltage

IDO

IAO
Topr
Tstg

Supply voltage

D-A converter upper reference voltage

Output current
D-A converter output current

Operating temperature
Storage temperature

Parameter

Conditions

-0.3~7.0

-0.3~Vcc+0.3

-20~+75

-40~+125

RECOMMENDED OPERATING CONDITIONS

•Digital voltage supply VDD 5V±10%

ELECTRICAL CHARACTERISTICS
Digital part(Ta=25°C,VDD=5V, unless otherwise noted)

Symbol

VDD
IDD

VIL
VIH

VOL
VOH

Parameter

Supply voltage

Circuit current

Input low voltage

Input high voltage

Output low voltage

Output high voltage

CLK=1MHz operation

IOL=1.0mA

IOH=-400µA

Test conditions

Min.

4.5

0.8VDD

VDD-0.4

12.5

-5~+5
10

Limits

Typ.

Max.

5.5
1

0.2VDD

0.4

Unit

V
V
V

mA

µA
°C
°C

Unit

V

mA

V
V

V
V

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MITSUBISHI<Dig.Ana.INTERFACE>

8-BIT 8CH D-A CONVERTER

Analog part(VDD=+5V,VrefU=12V,VrefL=0V,Ta=-20°C~+85°C, unless otherwise noted)

Symbol

Parameter

Test conditions

M62356P

Limits

Min.

Typ.

Max.

Unit

D-A converter upper reference
input current max

VrefU

VrefL

VAO
DNL

NL

D-A converter upper reference
voltage range

D-A converter lower reference
voltage range

D-A converter output
voltage range

Differential nonlinearity

Nonrineality

TIMING CHART (MODEL)

R

DI

MSB

D11 D10

All ch‘s set up at 107/256

Guaranteed monotonic

D9

1.2

3.5

VrefL VrefU

+2.5LSB -1.5LSB

LSB

D0

2.5IrefU

12

1.5

±1.0

±1.5

mA

V

V

V

LSB
LSB

CLK

LD

AO

Input data is carried out LD signal Low besides CLK signal positive edge.
CLK,LD is keep generally High level.

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8-BIT 8CH D-A CONVERTER

AC CHARACTERISTICS(Ta=25°C,VDD=+5V,VrefU=12V,VrefL=0V, unless otherwise noted)

Symbol
tCKL
tCKH
tCR Clock rise time

tCF
tDCH
tCHD
tCHL

tLDC
tLDH
tDO

tLDD

Clock "L"pulse width
Clock "H"pulse width

Clock fall time

Data set up time
Data hold time

LD set up time
LD hold time

LD "H" pulse width

Data output delay time
Data output setting time

Parameter

CL≤100pF
Without load

Test conditions

Min Typ
200

200

60

100

200

100

100

70

M62356P

Limits

Max

200

200

350

20 µs

Unit

ns
ns

ns
ns
ns
ns

ns
ns
ns

ns

TIMING CHART

CLK

DI

LD

D-A
OUTPUT

DO
OUTPUT

tCR tCF

tCKL

tDCH

tCKH

tCHD

tDO

tLDC

tLDH

tCHL

tLDD

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MITSUBISHI<Dig.Ana.INTERFACE>

01267

M62356P

8-BIT 8CH D-A CONVERTER

DIGITAL FORMAT

1.12-bit shift register

To set DAC,12-bit data is input in series at CLK signal“positive“
edges while the LD pin status is “Low“.

•12 bit serial data

DATA

CK

•Data assignment

DAC select data

DAC set up data

(LSB)

•DAC set up data
(LSB) (MSB)

D0 D1 D2 D3 D4 D5 D6 D7

0
1
0
1

0
0
1
1

0
0
0
0

(MSB)

0
0
0
0

(LSB)

0
0
0
0

2.Decoder(DAC select data)

One DAC circuit is selected from among 8 circuits according
to the DAC select data(4-bits:D8,D9,D11 and D14).

•DAC select data
D8 D9 D10 D11

0
0
0
0

0
0
0

0
1

1
1

1
1

1
1

1

0
0
0
0

0
0
0
0

DAC selection
0
0
0
0
1
1
1
1

0
0
0
0

1
1

1
1

0
0
1

1

0
0
1
1

0
0
1
1
0
0
1

1

1/256•(VrefU-VrefL)+VrefL

0

2/256•(VrefU-VrefL)+VrefL

0

3/256•(VrefU-VrefL)+VrefL

0

4/256•(VrefU-VrefL)+VrefL

0

Don‘t care

0

Ao1 selection

1
0

Ao2 selection

1

Ao3 selection

0

Ao4 selection
Ao5 selection

1
0

Ao6 selection
Ao7 selection

1
0

Ao8 selection

Don‘t care

1

0

Don‘t care
Don‘t care

1
0

Don‘t care

1

Don‘t care

0

Don‘t care

1

Output voltage

Don‘t care

0
1

Ao=

1
1

2 X D0 + 2 X D1 + 2 X D2 +••••••••+ 2 X D6 + 2 X D7 + 1

1
1

1
1

256

1
1

1
1

1
1

• (VrefU - VrefL) + VrefL

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255/256•(VrefU-VrefL)+VrefL

1

256/256•(VrefU-VrefL)+VrefL

1

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APPLICATION CIRCUIT

MITSUBISHI<Dig.Ana.INTERFACE>

M62356P

8-BIT 8CH D-A CONVERTER

5V

12V

MICRO

COMPUTER

10µF

10µF5V

10µF

11

10

1

2

VrefU1

VrefU2

LD

CLK

17

VDD

Ao1

Ao2

Ao3

Ao4

Ao5

Ao6

Ao7

12

13

OUTPUT VOLTAGE RANGE
(0 to 5V)

14

15

4

3

OUTPUT VOLTAGE RANGE
(0 to 12V)

2

3

D1

GND VrefL

8

*This IC has relatively high output impedance.To reduce the
influence of noise when an output line is long,connect
capacitance of a few hundred picofarads to a few thousand
picofarads between the output and GND.

This application circuit is connected to two reference
voltages.

9

MITSUBISHI

Ao8

1

To use this IC with a single reference voltage,short-circuit pins
10 , 11 ; the outputs from pins Ao1 ~ Ao8 will be
controlled at an even level.

To prevent interference by noise;be sure to connect capacitance
of 10µF to the power supply pin and VrefU pin.

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