Datasheet > NJU7394

NJU7394

更新时间： 2024-11-09 10:26:07

品牌	Logo	应用领域
NJRC		/
页数	文件大小	规格书
16页	209K
描述
Pushbutton Interface EVR

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中文翻译

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NJU7394 数据手册

NJU7394

Pushbutton Interface EVR

GENERAL DESCRIPTION

PACKAGE OUTLINE

The NJU7394 is a pushbutton interface electronic volume.

It includes a electronic volume controller with differential input,

attenuator function, some indicator and a stand-by function

(Power-saving mode).

The NJU7394 has also built-in push button interface for its

volume UP/DOWN controls and power ON/OFF controls -

making application possible without the use of micro-controller.

The NJU7394 is suitable for low power application and also for

application without micro-controller such as mobile audio player

and cradle speaker for mobile game.

NJU7394VC3

FEATURES

• Operating Voltage

+2.7 to +5.5V

• Low operating current

2mA typ. (Active mode)

1µA typ. (stand-by mode)

• Pop-noise reduction

• Quasi-differential input

• Pushbutton interface EVR

• Adjustable initial Volume

+6 to -62dB, MUTE

-6dB, -10dB, -14dB, -18dB

• Attenuator / Soft MUTE Function -10dB, -15dB, -20dB, MUTE

• CMOS Technology

• Package Outline

SSOP20

V⁺

Volume

indicator

BLOCK DIAGRAM

Power

indicator

Power Button

V⁺

Bias

IREF

Power

V⁺

SWMODE PWSW

PWIND

VOLIND

VREF GND

Power Contrel

Logic

Standby

Bias

STBY

Input L

Input G

Input R

Output L

Attenuator

Bypass/Att.

(-10dB, -15dB,

-20dB, Mute)

Electric Volume

(+6dB to -62dB, Mute)

Output R

Volume Control Logic

ATTADJ

VOLADJ

ATT

DOWN TEST

V⁺

Attenuate level

adjuster

-10,-15,-20dB,Mute

Initial volume

adjuster

-6,-10,-14,-18 dB

R_ATTR_INIT

Test mode

V⁺

Down

V⁺

Attenuator

NJU7394 Ver.3.1 _E

- 1 -

12 3 4 5 6 7...16

中文翻译

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