NJW1152
- 1 -
SOUND PROCESSOR with SOUND ENHANCEMENT
s
s
s
s
GENERAL DESCRIPTION
s
s
s
s
PACKAGE OUTLINE
The NJW1152 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 NJW1152 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.
s
s
s
s
FEATURES
q
q
q
q
Operating Voltage
8 to 13V
q
q
q
q
I
2
C BUS Interface
q
q
q
q
Low Noise Master Volume
q
q
q
q
BBE Sound Enhancement (Low Boost and High Boost: 12dB max.)
q
q
q
q
AGC circuit.
q
q
q
q
Original 3D Surround/Simulated Stereo
q
q
q
q
Bi-CMOS Technology
q
q
q
q
Package Outline
SOP40
s
s
s
s
BLOCK DIAGRAM
VOL1
BBE
TONE
VOL1
BBE
TONE
AGC
NJRC
Surround
&
Simulated
Stereo
BIAS
Control
Logic
VOL2
VOL2
NJW1152G
P R E L I M I N A R Y
NJW1152
- 2 -
s
s
s
s
PIN FUNCTION
No. Symbol
Function
No. Symbol
Function
1 GND
GND
21
SCL
I
2
C BUS Clock Terminal
2 AGC
AGC
Response
Control
Terminal
22
SDA
I
2
C BUS Data Terminal
3
BTC
BBE Filter Terminal
23
OUTa
Bch Output
4
INa
Ach Input Terminal
24
EVR-INb
Bch VOL2 Input Terminal
5
PS1
Surround Filter Terminal
25
TONE-outb Bch Tone Control Output
6
aHC1
BBE Filter Terminal
26
TONE-Lb3
Tone Control (Bass) Filter Terminal
7
aHC2
BBE Filter Terminal
27
TONE-Lb2
Tone Control (Bass) Filter Terminal
8
aHC3
BBE Filter Terminal
28
TONE-Lb1
Tone Control (Bass) Filter Terminal
9
aLC1
BBE Filter Terminal
29
TONE-Hb
Tone Control (Treble) Filter Terminal
10
aLC2
BBE Filter Terminal
30
bLC3
BBE Filter Terminal
11
aLC3
BBE Filter Terminal
31
bLC2
BBE Filter Terminal
12
TONE-Ha
Tone Control (Treble) Filter Terminal
32
bLC1
BBE Filter Terminal
13
TONE-La1
Tone Control (Bass) Filter Terminal
33
bHC3
BBE Filter Terminal
14
TONE-La2
Tone Control (Bass) Filter Terminal
34
bHC2
BBE Filter Terminal
15
TONE-La3
Tone Control (Bass) Filter Terminal
35
bHC1
BBE Filter Terminal
16
TONE-outa
Ach Tone Control Output
36
PS3
Surround Filter Terminal
17
EVR-INa
Ach VOL2 Input Terminal
37
INb
Bch Input Terminal
18
OUTa
Ach Output
38
PS2
Surround Filter Terminal
19
AUX1
Auxiliary Output Terminal
39
VREF
Reference Voltage Terminal
20
AUX0
Auxiliary Output Terminal
40
Vcc
Voltage Terminal
2
3
4
5
6
1
7
8
9
10
11
12
13
14
15
16
17
18
19
20
26
25
24
23
22
31
30
29
28
27
36
35
34
33
32
40
39
38
37
21
GND
AGC
BTC
INa
PS1
aHC1
aHC2
aHC3
aLC1
aLC2
aLC3
TONE-Ha
TONE-La1
TONE-La2
TONE-La3
TONE-outa
EVR-INa
OUTa
AUX1
AUX0
Vcc
VREF
PS2
INb
PS3
bHC1
bHC2
bHC3
bLC1
bLC2
bLC3
TONE-Hb
TONE-Lb1
TONE-Lb2
TONE-Lb3
TONE-outb
EVR-INb
OUTb
SDA
SCL
NJW1152
- 3 -
s
s
s
s
ABSOLUTE MAXIMUM RATING (Ta=25C)
PARAMETER SYMBOL
RATING
UNIT
Supply Voltage
V
+
14 V
Power Dissipation
P
D
700
mW
Operating Temperature Range
Topr
-40 to +85
C
Storage Temperature Range
Tstg
-40 to +125
C
s
s
s
s
ELECTRICAL CHARACTERISTICS
(Ta=25C, V+=9V, Rg=600
, R
L
=47k
, Vin=100mVrms/1kHz,
Vol1/Vol2a/Vol2b=0dB,AGC=OFF,BBE=0dB,TONE=0dB,Surround=OFF unless otherwise specified)
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
Operating Voltage
V+
8.0
9.0
13.0
V
Supply Current
I
CC
No
Signal
-
25 40 mA
Reference Voltage
V
REF
No
Signal
4.0 4.5 5.0 V
Maximum Input Voltage
V
IM
Vol1=-20dB,
Vol2a/2b=0dB,THD=1%
2.6 2.8 - Vrms
Maximum Output Voltage
V
OM1
OUTPUT THD=1%
2.2
2.5
-
Vrms
Maximum Gain
G
VMAX
-2.0
0.0
2.0
dB
Minimum Gain
G
VMIN
Vol1/Vol2a/Vol2b=
-40dB -84 -80 -76 dB
Channel Balance
G
CB
-1.5 0.0 1.5 dB
Total Harmonic Distortion
THD
Vo=0.5Vrms
BW=400Hz to 30kHz
- 0.01
0.05 %
Mute Level
MUTE
Vol1/Vol2a/Vol2b= Mute
-
-
-90
dB
Channel Separation
CS
Vin=2Vrms
-
-80
-70
dB
Output Noise 1
V
NO1
BW=400Hz
to
30kHz
-
-100
(10.0)
-
dBV
(
Vrms)
Output Noise 2
V
NO2
Vol1/Vol2a/Vol2b= Mute
BW=400Hz to 30kHz
-
-110
(3.2)
-100
(10.0)
dBV
(
Vrms)
q
q
q
q
TONE CONTROL
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
High Frequency Boost
HF
BST
TREBE=12dB,
f=20kHz
10
12.0 14.0
dB
High Frequency Flat
HF
FLT
TRBE=0dB,f=20kHz
-2.0 0.0
2.0
dB
High Frequency Cut
HF
CUT
TREBLE=-12dB,
f=20kHz -14 -12.0 -10.0 dB
Low Frequency Boost
LF
BST
BASS=12dB,
f=50Hz
10.0 12.0 14.0 dB
Low Frequency Flat
LF
FLT
BASS=0dB,
f=50Hz
-2.0 0.0
2.0
dB
Low Frequency Cut
LF
CUT
BASS=-12dB,
f=50Hz
-14.0 -12.0 -10.0 dB
NJW1152
- 4 -
q
q
q
q
AGC CONTROL: AGC= H (AGC-ON)
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
AGC BOOST
AGC
BST
Vin=50mVrms
2.0 3.0 4.0 dB
AGC FLAT L
AGC
FLTL
Vin=100mVrms
AGCLVL=" 1"
-2.5 0.0 2.5 dB
AGC FLAT M
AGC
FLTM
Vin=200mVrms
AGCLVL=" 2"
-2.5 0.0 2.5 dB
AGC FLAT H
AGC
FLTH
Vin=400mVrms
AGCLVL=" 3"
-2.5 0.0 2.5 dB
AGC CUT 3
AGC
CUT3
Vin=2Vrms
AGCLVL=" 3"
-16 -12 -8.0 dB
q
q
q
q
SURROUND CONTROL (SURROUND-ON)
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
SURROUND Gain 1
G
VSUR1
Ain
Aout, f=100Hz
Surround="Sur1 "
6.5 8.5 10.5 dB
SURROUND Gain 2
G
VSUR2
Ain
Bout, f=100Hz
Surround="Sur1 "
2.5 4.5 6.5 dB
SURROUND Gain 3
G
VSUR3
Ain
Aout, f=100Hz
Surround="Sur2 "
10 12 14 dB
SURROUND Gain 4
G
VSUR4
Ain
Bout, f=100Hz
Surround="Sur2 "
7.5 9.5 11.5 dB
Simulated Stereo Gain1
G
VSST1
Ain+Bin
Aout,
Surround="SST"
1.0 3.0 5.0 dB
Simulated Stereo Gain2
G
VSST2
Ain+Bin
Bout,
Surround="SST"
1.0 3.0 5.0 dB
q
q
q
q
BBE (BBE ON)
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
BBE low Frequency
Boost Range
BBE
LOW
BBE-Low=12dB
- 12.0 - dB
BBE High Frequency
Boost Range
BBE
HIGH
BBE-High=12dB
- 12.0 - dB
q
q
q
q
AUXILIARY OUTPUT
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
Low level Output Voltage
V
OL
I
OL
=1mA
-
0.5
1.5
V
High level Output Voltage
V
OH
I
OH
=1mA
3.5 4.5 - V
NJW1152
- 5 -
s
s
s
s
I
2
C BUS BLOCK CHARACTERISTICS (SDA,SCL)
PARAMETER SYMBOL
MIN.
TYP.
MAX.
UNIT
High Level Input Voltage
V
IH
3.0
-
5.0
V
Low Level Input Voltage
V
IL
0
-
1.5
V
High Level Input Current
I
IH
-
-
10
A
Low Level Input Current
I
IL
-
-
10
A
Low Level Output Voltage (3mA at SDA pin)
V
OL
0 -
0.4
dB
Maximum Output Current
I
OL
-3.0
- - mA
Maximum Clock Frequency
f
SCL
0 -
100
kHz
Data Change Minimum Waiting Time
t
BUF
4.7 - - s
Data Transfer Start Minimum Waiting Time
t
HD:STA
4.0 - - s
Low Level Clock Pulse Width
t
LOW
4.7 - - s
High Level Clock Pulse Width
T
HIGH
4.0 - - s
Minimum Start Preparation Waiting Time
t
SU:STA
4.7 - - s
Minimum Data Hold Time
t
HD:DAT
5.0 - - s
Minimum Data Preparation Time
t
SU:DAT
250 - - ns
Rise Time
t
R
-
-
1.0
s
Fall Time
t
F
-
-
300
ns
Minimum Stop Preparation Waiting Time
t
SU:STO
4.7 - - s
I
2
C BUS Load Condition: Pull up resistance 4k
(Connected to +5V)
Load capacitance 200pF (Connected to GND)
SDA
SCL
t
BU
t
HD:ST
Sr
P
t
LOW
t
R
t
HD:DA
t
HIGH
t
F
t
SU:DA
S
P
t
SU:ST
t
SU:ST
t
HD:ST
PDF 
ZIP