NJW1195AV

更新时间： 2024-02-13 15:28:01

品牌	Logo	应用领域
NJRC		电子
页数	文件大小	规格书
3页	81K
描述
4-Channel Electronic Volume with Input Selector

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NJW1195AV 数据手册

NJW1195A

4-Channel Electronic Volume with Input Selector

■ GENERAL DESCRIPTION

■ PACKAGE OUTLINE

The NJW1195A is a 4-channel electronic volume with

4-in 2-out stereo audio selector. It performs low noise and

low distortion characteristics with resistance ladder circuit.

The NJW1195A is also available for 2-channel differential

transmission electronic volume with 2-in 1-out stereo audio

selector by a differential transmission select function.

All of functions are controlled via three-wired serial bus.

Selectable 4-Chip address is available for using four chips

on same serial bus line.

NJW1195AV

It’s suitable for two-channel stereo system and or

multi-channel audio system.

At the volume attenuated, the NJW1195A improves low

distortion compared with NJW1195. Furthermore, the

NJW1195A supports both single power supply operation

and dual power supply operation.

■ FEATURES

■ Operating Voltage

Dual power supply : ±3.5 to ±7.5V

Single power supply : +7.0 to +15V

■ 3-Wired Serial Control

■ Selectable 4-Chip Address

■ Low Output Noise

Chip Address Select Function

Available for using four chips on same serial bus line

-118dBV typ. (1.26µVrms typ.)

■ Low Distortion

0.0003% typ. at Vin=1Vrms (Differential transmission)

■ 4in 2out Stereo Signal Selector

■ Volume

+31.5 to –95dB / 0.5dB step, Mute

-120dB typ.

■ Differential transmission select function

■ Channel Separation

■ Zero Cross Detection

■ Bi-CMOS Technology

■ Package Outline

SSOP32

■ BLOCK DIAGRAM

V+

V-

In B1

In B2

In B3

In B4

Out1 B

Out2 B

DIFF

ADR1

ADR0

100 F

100

10 F

100

100 F

+31.5dB to -95dB

/ 0.5dBstep, Mute

Ref 5V

VDD

VOL1B

+31.5dB to -95dB

/ 0.5dBstep, Mute

VOL2B

SEL1B SEL2B

SEL1A SEL2A

VOL2A

+31.5dB to -95dB

/ 0.5dBstep, Mute

Zero Cross

Detection

VOL1A

+31.5dB to -95dB

/ 0.5dBstep, Mute

Control Logic

10 F

100

10 F

100

V-

D_REF

In A1

In A2

In A3

In A4

Out1 A

Out2 A

DATA

CLOCK

LATCH

Ver. 0.1E for Web

– 1 –

12 3

中文翻译

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