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-
NJW1132
n
ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
SYMBOL
Supply Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
V
+
P
D
Topr
Tstg
RATING
14
700
-20 to +75
-40 to +125
UNIT
V
mW
°C
°C
W
n
ELECTRICAL CHARACTERISTICS ( Ta=25°C, V+=9V, Rg=600W, R
L
=47kW, Vin=100mVrms/1kHz)
W
SYM
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
PARAMETER
BOL
Operating Voltage
Supply Current
Reference Voltage
Maximum Input Voltage
Maximum Output Voltage
Channel Balance
Balance Boost A
Balance Cut A
Balance Boost B
Balance Cut B
Total Harmonic Distortion
Mute Level
Channel Separation
Output Noise 1
Output Noise 2
V+
I
CC
V
REF
V
IM
V
OM1
G
CB
BA
BST
BA
CUT
BB
BST
BB
CUT
THD
MUTE
CS
V
NO1
V
NO2
No Signal
No Signal
VOL=C3H,THD=1%
OUTPUT
VOL=FFH,THD=1%
VOL=FFH
BAL=”00000”
BAL=”11111”
BAL=”00000”
BAL=”11111”
Vo=0.5Vrms
BW=400Hz to 30kHz
VOL=00H
Vin=2Vrms
VOL=FFH
BW=400Hz to 30kHz
VOL=00H
BW=400Hz to 30kHz
8.0
-
4.0
2.6
-
-1.5
-2.0
-
-2.0
-
-
-
-
-
-
-
-
9.0
30
4.5
2.8
2.5
0.0
0.0
-
0.0
-
-
-
-
-
-
-90
(31.6)
13.0
50
5.0
-
-
1.5
2.0
-70
2.0
-70
0.5
-70
-70
-60
(1.0)
-82
(79.4)
V
mA
V
Vrms
Vrms
dB
dB
dB
dB
dB
%
dB
dB
dBV
(mVrms)
dBV
(uVrms)
-3-
DSP 与 ARM 处理器
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