NJW1130A
PPRELIMINARY
SOUND PROCESSOR with SOUND ENHANCEMENT
s
GENERAL DESCRIPTION
The
NJW1130A
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
NJW1130A
performs surround and sound
enhancement. The sound enhancement regenerates high
definitive and nearly real sound.
2
All of internal status and variables are controlled by I C
BUS interface.
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PACKAGE OUTLINE
NJW1130G
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FEATURES
q
Operating Voltage
(8 to 13V)
2
q
I C BUS Interface
q
BBE Sound Enhancement
(Low Boost and High Boost: 15dB max.)
q
Internal 6 Input Audio Selectors and Monitor Output
q
The AGC circuit reduces volume difference among input sources.
q
Matrix Surround
q
Bi-CMOS Technology
q
Package Outline
SOP40
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BLOCK DIAGRAM
BBE BBE
2a
MON a AGC1 1a
PS
TONE TONE
Ha
La
OUTa
LINEa
IN1a
IN2a
IN3a
IN4a
IN5a
IN6a
IN1b
IN2b
IN3b
IN4b
IN5b
IN6b
MON b
AGC2 BBE BBE
2b
1b
TONE TONE
Lb
Hb
OUTb
Input
Selector
Input
Selector
4.5dB
CVA
CVB
BBE
Volume
Tone
Volume
CTH
CTL
Control
Logic
AGC
Surround
AUX0
AUX1
SDA
SCL
BBE
Volume
Tone
Volume
GND
Bias
4.5dB
VCC
LINEb
Vref
Ver.2.0
-1-