µPD4726

2

BLOCK DIAGRAM/PIN CONFIGURATION (Top View)

Notes 1. VDD and VSS output internally boosted voltages. Do not connect a load directly to these pins.

2. It is recommended that capacitors having a breakdown voltage of 20 V or higher be used as C1 through

C5. Inserting a bypass capacitor of 0.1 to 1

µF in between VCC and GND is also recommended.

3. Be sure to connect all the GND pins. Especially, make sure that pin 31 is connected; otherwise, the

µPD4726 will not operate normally. Be sure to leave the NC pins (pins 5 and 7) open.

4. The pull-up resistors for DIN1 through DIN4 and STBY and the pull-down resistor for EN are active resistors.

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

20

19

STBY

GND

EN

DOUT1

DOUT2

DOUT3

DOUT4

RIN1

RIN2

RIN3

RIN4

RIN5

RIN6

RIN7

1

2

3

4

5

6

7

C3

C4

C1

+

+

C2

+

+

+10 V

−10 V

+5 V

8

9

10

11

12

13

14

15

16

17

18

DIN1

DIN2

DIN3

DIN4

ROUT1

ROUT2

ROUT3

ROUT4

ROUT5

ROUT6

ROUT7

To internal

circuit

VDD

C1

+

VCC

C1

-

N.C.

GND

N.C.

C4

+

GND

C4

-

VSS

To internal

circuit