NJW1142AV 데이터 시트보기 (PDF) - Japan Radio Corporation
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NJW1142AV Datasheet PDF : 21 Pages
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NJW1142A
AUDIO PROCESSOR
GENERAL DESCRIPTION
The NJW1142A is a sound processor includes all of the
functions required to process the audio signal for TV, such
as tone control, balance, volume, mute, and AGC functions.
Also the NJW1142A performs NJRC Surround "eala"
which is regenerated 3D surround sound with only two
speakers.
All of the internal status and variables are controlled by I2C
BUS interface.
s PACKAGE OUTLINE
NJW1142AV
FEATURES
h Operating Voltage
8 to 10V
h Internal 4 Input Audio Selectors and Monitor Output
hLow Noise VCA
hNJRC Surround "eala"
hSimulated Stereo
hVariable AGC Compression Level via I2C (4-levels)
hBi-CMOS Technology
hPackage Outline
SSOP32
sBLOCK DIAGRAM
MONa AGC
TONE TONE
-Ha -La
OUTa
IN1a
IN2a
IN3a
IN4a
IN1b
IN2b
IN3b
IN4b
SEL
VOL1
AGC
SEL
VOL1
MONb
NJRC
Surround
“e ala”
&
Sim ulated
Stere o
TONE
TONE
VOL2
VOL2
I2C BUS
Interface
SDA
SCL
CVA
CVB
CTH
CTL
CSR
Bias
GND
Vcc
TONETONE
-Hb -Lb
OUTb
Vref
-1–
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