NJW1173 Datasheet, PDF (1/17 Pages) New Japan Radio – AUDIO PROCESSOR

NJW1173
AUDIO PROCESSOR
s GENERAL DESCRIPTION
The NJW1173 is an audio processor which includes volume,
balance, tone control, surround, simulated stereo and AGC
function.
Also the NJW1173 features high precision characteristics about
channel balance, it is less than ±1.0dB at –70dB attenuation.
All of internal status and variables are controlled by I²C BUS.
It is suitable for any TV set.
s PACKAGE OUTLINE
NJW1173V
s FEATURES
q Operating Voltage
8 to 13V
q I²C BUS Interface
(Fast mode applicable, 3V I/F applicable)
q Low Output Noise
q AGC Circuit (Selectable 4-stage compression level via I²C BUS)
q "eala" (NJRC Surround)
q Simulated Surround
q Bi-CMOS Technology
q Package Outline
SSOP20
s BLOCK DIAGRAM
AGC
SRFIL
TONE TONE
-Ha -La
OUTa
INa
VOL1
TONE
VOL2
AGC
e ala
&
Sim ulate
Stere o
I²C Bus
Interface
CVO
CBA
CTH
CTL
CSR
INb
VOL1
TONE
VOL2
SCL
SDA
V+
Bias
GND
TONE TONE
-Hb -Lb
OUTb Vref
-1-