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