NJW1191 查看數據表（PDF） - Japan Radio Corporation

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NJW1191

4-channel Electronic Volume with Input Selector

Japan Radio Corporation  

NJW1191

!TERMINAL DESCRIPTION

No. SYMBOL

FUNCTION

EQUIVALENT CIRCUIT

V+

VOLTAGE

2

VREF

Reference Voltage

200k

200k

GND

3

IN1R

Rch Input 1

4

IN2R

Rch Input 2

5

IN3R

Rch Input 3

6

IN4R

Rch Input 4

30

IN1L

Lch Input 1

29

IN2L

Lch Input 2

28

IN3L

Lch Input 3

27

IN4L

Lch Input 4

V+

50

18k

30k

GND

VREF

7

TAP1R Rch Loudness High Freq. Time

Constant

26

TAP1L

Lch Loudness High Freq. Time

Constant

V+

V+

50

GND

V+/2

V+/2

V+/2

8

TAP2R Rch Loudness Low Freq. Time

50

Constant

25

TAP2L

Lch Loudness Low Freq. Time

Constant

GND

VREF

4.7k

VREF

V+/2

–7–

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