NJW1157FC2 데이터 시트보기 (PDF) - Japan Radio Corporation

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NJW1157FC2

8-CHANNEL ELECTRONIC VOLUME WITH INPUT SELECTOR

Japan Radio Corporation  

NJW1157

8-CHANNEL ELECTRONIC VOLUME WITH INPUT SELECTOR

s GENERAL DESCRIPTION

NJW1157 is an eight channel electronic volume IC.

It includes Input selector, tone control, volume, mute,

input selector gain control, volume output gain control

and 5 REC outputs. It’s suitable for multi-channel

audio equipments such as AV receivers and DVD

receivers. These functions are controlled by

three-wired serial data.

s PACKAGE OUTLINE

NJW1157FC2

s FEATURES

q Operating Voltage

q Three-Wired Serial Data Control

q Input Selector (x 12)

q REC Output (x 5) with Selector

q Input Selector Gain Control

q Volume Output Gain Control

q Volume

q Tone Control

q Subwoofer output addition to L, R channel output

q Subwoofer output ON/OFF control

q Bi-CMOS Technology

q Package Outline

±4.5 to ±7.5V

Gain : 0/-3/-6/-9/-12dB

Gain : 0/+3/+6/+9/+12/+15/+18dB

0 to -100dB/1dBstep, MUTE

0 to ±10dB/1dBstep

QFP100 – C2

s BLOCK DIAGRAM

LAIN

RAIN

CAIN

LSAIN

RSAIN

LBAIN

RBAIN

SWAIN

L1IN

R1IN

L2IN

R2IN

L3IN

R3IN

L4IN

R4IN

L5IN

R5IN

L6IN

R6IN

L7IN

R7IN

L8IN

R8IN

L9IN

R9IN

L10IN

R10IN

L11IN

R11IN

L12IN

R12IN

DCLA1 DCLA2

DCRA1 DCRA2

Att Gain

Att Gain

Multi-channel

Volume

TONE

TONE

Supply

Voltage

µCOM

Interface

SW

TSW

SW

V+

GND

V-

LATCH

DATA

CLOCK

LOUT

ROUT

COUT

LSOUT

RSOUT

LBOUT

Amp

Gain

BSW

SSW

RBOUT

SWOUT

Input Selector

REC Out Selector

Multi-Channel Input B

–1–

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