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Epson, Electronic volume circuit – Epson Power Supply S1F70000 User Manual

Page 105

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S1F76640 Series

2–62

EPSON

S1F70000 Series

Technical Manual

Configuration Example of Voltage Stabilized Output (V

REG

) Electronic Volume Circuit

Figure 8.9

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

V

RI

(74HC4051)

13
14
15
12

1
5
2
4

11
10
9

6

16

7

8

3

CTRL0

XPOF
(V

DD

/V

SS

)

CTRL1

V

SS

or V

O

V

SS

or V

O

Negative voltage input

Voltage stabilized output (V

REG

)

Positive voltage input

CTRL2

V

O

CAP3+

CAP2+

CAP2–

CAP1+

CAP1–

V

DD

RV

V

REG

TC1

TC2

P

OFF

V

SS

OSC1

OSC2

+

+

+

+

IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7

V

CC

V

EE

V

SS

COM

INH

A
B
C