NJW1176 Datasheet, PDF (1/27 Pages) New Japan Radio – AUDIO PROCESSOR with Subwoofer Output

NJW1176
AUDIO PROCESSOR with Subwoofer Output
s GENERAL DESCRIPTION
The NJW1176 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 NJW1176 includes the LPF for subwoofer output
and bass boost function.
The original surround system reproduces natural surround
sound and clear vocal orientation.
All of internal status and variables are controlled by I²C
BUS interface.
s PACKAGE OUTLINE
NJW1176L
NJW1176M
s FEATURES
q Operating Voltage
7.5 to 13V
q 3ch Output (Lch, Rch, Subwoofer ch) / 2ch Output(Lch, Rch)
q LPF Filter (Adjustable cut off frequency by external parts)
q AGC Circuit (It reduces volume difference among input sources.)
Adjustable AGC compression level by I²C BUS
q eala(NJRC Original Surround System)
q Simulated Stereo
q I²C BUS Interface
q Bi-CMOS Technology
q Package Outline
SDIP30, SDMP30, SSOP32
NJW1176V
s BLOCK DIAGRAM
AGC
SUR TONETONE TONE
SUR -FIL OUTa INa -Ha -La LF1 LF2 LF3 OUTa
SCL SDA
IN a
IN b
VOL1
AGC
VOL1
eala
&
Simulated
Stereo
TONE
VOL2
LPF
VOL2
Trimmer
TONE
VOL2
I²CBUS
Interface
CVA
CVB
CVW
CTH
CTL
Bias
AUX1
AUX0
GND
V+
SUR TONE _{TONE TONE}
O-UTb -INb -Hb -Lb
OUTb
OUTw
Vref
-1-