NJW1163/A
AUDIO PROCESSOR with Subwoofer Output
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GENERAL DESCRIPTION
The
NJW1163/A
is a sound processor with subwoofer
output includes all of functions processing audio signal for
TV, such as tone control, balance, volume, mute, and AGC
functions.
Also the
NJW1163/A
includes the LPF for subwoofer
output and bass boost function.
The original surround system reproduces natural surround
sound and clear vocal orientation.
2
All of internal status and variables are controlled by I C
BUS interface.
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PACKAGE OUTLINE
NJW1163V
NJW1163AL
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FEATURES
7.5 to 13V
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Operating Voltage
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3ch Output(Lch, Rch, Subwoofer ch) / 2ch Output(Lch, Rch)
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LPF Filter (Adjustable cut off frequency by external parts)
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AGC Circuit (It reduces volume difference among input sources.)
2
Adjustable AGC boost level by external parts and AGC compression level by I C BUS
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eala(NJRC Original Surround System)
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Simulated Stereo
2
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I C BUS Interface
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Bi-CMOS Technology
NJW1163:
SSOP32
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Package Outline
NJW1163A:
SDIP32
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BLOCK DIAGRAM
AGC1
SS-FIL
TONE TONE
-Ha -La LF1 LF2 LF3
OUTa
SCL SDA ADR
IN a
VOL1
TONE
VOL2
I
2
CBUS
Interface
AGC
eal a
&
Simulated
Stereo
CVA
CVB
CVW
CTH
CTL
CSR
PORT1
PORT0
AUX1
AUX0
LPF
VOL2
Trimmer
IN b
VOL1
TONE
VOL2
Bias
GND
V+
AGC2
SR-FIL
TONE TONE
-Hb -Lb
OUTb
OUTw
Vref
-1-