NJW1132
PRELIMINARY
SOUND PROCESSOR with SOUND ENHANCEMENT
n
GENERAL DESCRIPTION
The
NJW1132
is a sound processor with sound
enhancement (BBE). It includes all of functions processing
audio signal for TV, such as tone control, balance, volume,
mute, and AGC functions.
Also the
NJW1132
performs surround and sound
enhancement. The sound enhancement regenerates high
definitive and nearly real sound.
All of internal status and variables are controlled by I
2
C BUS
interface.
n
PACKAGE OUTLINE
NJW1132M
NJW1132L
n
FEATURES
(8 to 13V)
l
Operating Voltage
2
l
I C BUS Interface
l
BBE Sound Enhancement (Low Boost and High Boost: 15dB max.)
l
The AGC circuit reduces volume difference among input sources.
l
Matrix Surround
l
Bi-CMOS Technology
SDIP30,SDMP30
l
Package Outline
n
BLOCK DIAGRAM
OUTPUT
INPUT
Volume
1
BBE
Tone
Volume
2
Control
Logic
AGC
Surround
AUX0
AUX1
SDA
SCL
INPUT
Volume
1
BBE
Tone
Volume
2
Bias
GND
VCC
OUTPUT
Vref
-1-