NJU72341V-TE2 datasheet, PDF - EEWORLD Datasheet

NJU72341

2 Channels Electronic Volume

GENERAL

DESCRIPTION

The NJU72341 is a 2 channels I C electronic volume IC with

external mute controls.

The NJU72341 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

No.

1

2

3

OUT1

Symbol

NC

IN1

IN2

MUTE

SDA

SCL

V+

VREF

GND

OUT2

OUT1

NC

Function

-

Input Terminal 1

Input Terminal 2

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 2

Output Terminal 1

-

IN1

4

5

IN2

OUT2

6

7

MUTE

SDA

SCL

I

2

C

Vref

8

9

10

11

12

13

14

Zero Cross

Detection

Ver.0.8E

–

1

–

NJU72341

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

450 (Note1)

0

~

V

+

(Note2)

-40

~

+85

-40

~

+125

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

+

TEST CONDITION

MIN.

4.5

TYP.

9

5.5

4.5

3.6

2.6

6

0

-106

0

0.002

2.0

-110

MAX.

14.5

9

5.0

-

8

1.5

-95

1

0.01

7.0

-90

UNIT

V

mA

V

Vrms

dB

%

μVrms

dB

I

DD

V

REF

V

INS

V

OM

G

V1

G

V2

G

V3

G

CB

THD

V

NO

CS

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

–

NJU72341

TERMINAL

DESCRIPTION

Terminal

SYMBOL

FUNCTION

EQUIVALENT CIRCUIT

V+

VOLTAGE

3

4

IN1

IN2

3kΩ

AC Input

48kΩ

V

REF

V /2

+

Internal VDD

5

MUTE

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

–

NJU72341

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

OUT2

OUT1

AC Output

40Ω

V /2

20kΩ

V

REF

+

–

4

–

NJU72341

TEST

CIRCUIT

I

DD

/ V

REF



V

INS

/ V

OM

/ G

V1

/ G

V2

/ G

V3

/ G

CB

/ THD

NC

1

14

1

14

NC

2

13

2

13

IN1

2.2uF

OUT1

IN1

2.2uF

OUT1

3

12

3

12

2.2uF

R

L

=47kΩ

IN2

2.2uF

OUT2

IN2

2.2uF

OUT2

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

NC

1

14

1

14

NC

2

13

2

13

IN1

2.2uF

OUT1

IN1

2.2uF

OUT1

3

12

3

12

2.2uF

R

L

=47kΩ

IN2

2.2uF

OUT2

V

IN2

R

L

=47kΩ

OUT2

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

–

Parameter Name	Attribute value
category	semiconductor;Audio IC
Maker	Nisshinbo Micro Devices Inc.
series	-
Package	Tape and Reel (TR) Cut Tape (CT)
Function	audio signal processor
application	audio system
Number of channels	2
interface	I²C
Voltage - Power supply	4.5V ~ 14.5V
Operating temperature	-40°C ~ 85°C
Specification	-
Installation type	surface mount type
Package/casing	14-LSSOP (0.173", 4.40mm wide)
Supplier device packaging	14-SSOP
Basic product number	NJU72341

Part Number	Manufacturer	Category	Description	Datasheet
NJM2761RB2-TE1	Nisshinbo Micro Devices Inc.	semiconductor;Audio IC	Audio volume control 2 channels 10-TVSP	Download
NJU72342V-TE2	Nisshinbo Micro Devices Inc.	semiconductor;Audio IC	Audio Audio Signal Processor 4 Channel 14-SSOP	Download
NJU7181RB1-TE1	Nisshinbo Micro Devices Inc.	semiconductor;Audio IC	Audio audio signal processor 1 channel 8-TVSP	Download
NJU72341V-TE2	Nisshinbo Micro Devices Inc.	semiconductor;Audio IC	audio processing chip, audio processor, 2 channels, 14 pins	Download
NJU72343V-TE1	Nisshinbo Micro Devices Inc.	semiconductor;Audio IC	Audio audio signal processor 8 channels 32-SSOP	Download

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