NJU72342V-TE2 PDF数据手册_NJU72342V-TE2 特性/功能/参数/引脚图_Nisshinbo Micro Devices Inc. 音频 IC

NJU72342

4 Channels Electronic Volume

GENERAL

DESCRIPTION

The NJU72342 is a 4 channels I C electronic volume IC with

external mute controls.

The NJU72342 has many characteristics that are useful in audio

application, such as low noise, low distortion, and wide operating

voltage range.

All functions are controlled by I C BUS interface.

2

PACKAGE

OUTLINE

SSOP14

FEATURES



Operating Voltage



Input Gain



Volume



Low Distortion



Low Noise



External Mute



Zero Cross Detection



I

2

C BUS Control



CMOS Technology



Small Package



V

+

=4.5V



14.5V

0dB/+3dB/+6dB/+9dB

0~-95dB/Mute ,1dBstep

0.002% typ.

2.0µVrms typ.

SSOP14

BLOCK

DIAGRAM

PIN

CONFIGURATION

IN1

OUT1

No.

1

2

3

4

5

OUT3

Symbol

IN1

IN2

IN3

IN4

MUTE

SDA

SCL

V+

VREF

GND

OUT4

OUT3

OUT2

OUT1

Function

Input Terminal 1

Input Terminal 2

Input Terminal 3

Input Terminal 4

Mute Terminal

I

2

C Data Input Terminal

/Acknowledge Output

I

2

C Clock Terminal

Power Supply Terminal

Reference Voltage

Terminal

Ground Terminal

Output Terminal 4

Output Terminal 3

Output Terminal 2

Output Terminal 1

IN2

OUT2

IN3

6

IN4

OUT4

7

8

9

10

11

12

13

14

MUTE

SDA

SCL

I

2

C

Vref

Zero Cross

Detection

Ver.0.8E

–

1

–

NJU72342

ABSOLUTE

MAXIMUM RATING

(Ta=25C)

PARAMETER

Supply Voltage

Power Dissipation

Maximum Input Voltage

Operating Temperature Range

Storage Temperature Range

SYMBOL

V

+

P

D

V

IMAX

Topr

Tstg

RATING

+15

560 (Note1)

0

~

V

+

(Note2)

-40

~

+85

-40

~

+150

UNIT

V

mW

V

C

(Note1) EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting

(Note2) Don’t put Input Voltage more than Power Supply Voltage.



ELECTRICAL

CHARACTERISTICS

(Ta=25C, V =9V, R

L

=47k, V

IN

=1.5Vrms, f=1kHz, all controls flat unless otherwise specified)

+

PARAMETER

Operating Voltage

Supply Current

Reference Voltage

Maximum Input Voltage

Maximum Output Voltage

Voltage Gain 1

Voltage Gain 2

Voltage Gain 3

Channel Balance

Total Harmonic Distortion

Output Noise Voltage

Channel Separation



SYMBOL

V

+

I

DD

V

REF

V

INS

V

OM

G

V1

G

V2

G

V3

G

CB

THD

V

NO

CS

TEST CONDITION

MIN.

4.5

TYP.

9

10

4.5

3.6

2.6

6

0

-100

0

0.002

2.0

-110

MAX.

14.5

16

5.0

-

8

1.5

-95

1

0.01

7.0

-90

UNIT

V

mA

V

Vrms

dB

%

μVrms

dB

No signal

Main Volume=-6dB,THD=1%

THD=1%

Input Gain=+6dB, V

IN

=100mVrms

-

4.0

-

2.2

4

-1.5

Main Volume=Mute,

BW=400Hz-30kHz

Main Volume=0dB

Vo=1.5Vrms,BW=400Hz~30kHz

Main Volume=0dB

R

g

=0

-

-1

-

MUTE TERMINAL CONTROL CHARACTERISTICS

(Ta=25C, all controls flat unless otherwise specified)

PARAMETER

Low Level Input Voltage

High Level Input Voltage

SYMBOL

V

IL

V

IH

TEST CONDITION

MIN.

0

2.0

TYP.

-

MAX.

0.6

V

+

UNIT

V

CONTROL

TERMINAL EXPLANATION

–Mute

Terminal-

(Ta=25C, V =9V, R

L

=47k, V

IN

=1.5Vrms, f=1kHz, all controls flat unless otherwise specified)

+

MODE

Mute ON

Mute OFF

STATUS

H

L

TEST CONDITION

Mute is Active

Mute is NOT Active

–

2

–

NJU72342

TERMINAL

DESCRIPTION

Terminal

SYMBOL

FUNCTION

EQUIVALENT CIRCUIT

V+

VOLTAGE

1

2

3

4

IN1

IN2

IN3

IN4

3kΩ

AC Input

48kΩ

V

REF

V /2

+

Internal VDD

5

MUTE

Control

20kΩ

100kΩ

0V

V+

6

SDA

I C Data Input

/Acknowledge

Output

2

26.7Ω

20kΩ

-

ACK

V+

7

SCL

I C Clock Input

2

20kΩ

-

–

3

–

NJU72342

TERMINAL

DESCRIPTION

Terminal

SYMBOL

FUNCTION

EQUIVALENT CIRCUIT

VOLTAGE

V+

8

V+

Supply Voltage

V

+

V+

300Ω

9

VREF

Reference Voltage

175kΩ

V /2

+

V+

11

12

13

14

OUT4

OUT3

OUT2

OUT1

AC Output

40Ω

V /2

20kΩ

V

REF

+

–

4

–

NJU72342

TEST

CIRCUIT

I

DD

/ V

REF



V

INS

/ V

OM

/ G

V1

/ G

V2

/ G

V3

/ G

CB

/ THD

IN1

2.2uF

OUT1

IN1

2.2uF

OUT1

1

14

1

14

2.2uF

R

L

=47kΩ

IN2

2.2uF

OUT2

IN2

2.2uF

OUT2

V

2

13

2

13

2.2uF

R

L

=47kΩ

IN3

2.2uF

OUT3

IN3

2.2uF

OUT3

V

3

12

3

12

2.2uF

R

L

=47kΩ

IN4

2.2uF

OUT4

IN4

2.2uF

OUT4

V

4

11

4

11

2.2uF

R

L

=47kΩ

MUTE

GND

MUTE

GND

V

5

Zero Cross

Detection

Vref

10

5

Zero Cross

Detection

Vref

10

SDA

VREF

SDA

VREF

10uF

6

IC

SCL

2

9

10uF

V

+

6

V

+

9

V

+

10uF

A

I

2

C

SCL

V

+

7

Bias

8

10uF

7

Bias

8



V

NO



CS

IN1

2.2uF

OUT1

1

14

2.2uF

IN1

2.2uF

OUT1

1

14

2.2uF

R

L

=47kΩ

IN2

2.2uF

OUT2

V

IN2

R

L

=47kΩ

OUT2

V

2

13

2.2uF

2

13

2.2uF

R

L

=47kΩ

IN3

2.2uF

OUT3

V

IN3

R

L

=47kΩ

OUT3

V

3

12

2.2uF

3

12

2.2uF

R

L

=47kΩ

IN4

2.2uF

OUT4

V

IN4

R

L

=47kΩ

OUT4

V

4

11

2.2uF

4

11

2.2uF

R

L

=47kΩ

MUTE

GND

V

MUTE

R

L

=47kΩ

GND

V

5

Zero Cross

Detection

Vref

10

5

Zero Cross

Detection

Vref

10

SDA

VREF

10uF

SDA

VREF

10uF

6

I

2

C

SCL

9

V

+

10uF

6

I

2

C

SCL

9

V

+

10uF

V

+

V

+

7

Bias

8

7

Bias

8

–

5

–

参数名称	属性值
类别	半导体;音频 IC
厂商名称	Nisshinbo Micro Devices Inc.
系列	-
包装	卷带（TR）剪切带（CT）
功能	音频信号处理器
应用	音频系统
通道数	4
接口	I²C
电压 - 供电	4.5V ~ 14.5V
工作温度	-40°C ~ 85°C
规格	-
安装类型	表面贴装型
封装/外壳	14-LSSOP（0.173"，4.40mm 宽）
供应商器件封装	14-SSOP
基本产品编号	NJU72342

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NJU72342V-TE2

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