NJW1141 Datasheet, PDF (1/20 Pages) New Japan Radio – AUDIO PROCESSOR

NJW1141
AUDIO PROCESSOR
s GENERAL DESCRIPTION
s PACKAGE OUTLINE
The NJW1141 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.
All of the internal status and variables are controlled by
I²C BUS interface.
s FEATURES
q Operating Voltage
8 to 10V
q I²C BUS Interface
q Internal 4 Input Audio Selectors and Monitor Output
q Low Noise VCA
q Variable AGC Compression Level via I²C (4-levels)
q Bi-CMOS Technology
q Package Outline
SDIP30, SDMP30
NJW1141L
NJW1141M
sBLOCK DIAGRAM
MONa AGC
TONE TONE
-Ha -La
OUTa
IN1a
IN2a
IN3a
IN4a
IN1b
IN2b
IN3b
IN4b
SEL
AGC
SEL
M ONb
VOL1
TONE
VOL2
VOL1
TONE
VOL2
TONE TONE
-Hb -Lb
OUTb
I²C BUS
Interface
SDA
SCL
CVA
CVB
CTH
CTL
Bias
Vref
GND
Vcc
-1-