P R E L I M I N ALY
NJW1160
AUDIO PROCESSOR with SOUND ENHANCEMENT and SRS 3D STEREO
I
GENERAL DESCRIPTION
The
NJW1160
is an audio processor that includes Sound
enhancement (BBE) and SRS 3D Stereo. It includes all of
the audio signal processing functions for TV such as tone
control, balance, volume, mute, and AGC .
The SRS 3D stereo technology reproduces 3D stereo
surround sound effect using only two speakers.
The sound enhancement regenerates high definitive and
nearly real sound.
2
All of internal status and variables are controlled by I C
BUS interface.
I
PACKAGE OUTLINE
NJW1160L
NJW1160M
I
FEATURES
Operating Voltage
7.5 to 13V
2
I C BUS Interface
BBE Sound Enhancement (Low Boost and High Boost: 15dB max.)
AGC Circuit (It reduces volume difference among input sources.)
SRS 3D Stereo
Simulated Surround
Bi-CMOS Technology
Package Outline
SDIP30, SDMP30
I
BLOCK DIAGRAM
VOL1
BBE
TONE
VOL2
I2C Bus
Interface
AGC
SRS
3D Stereo
&
Simulated
Surround
VOL1
BBE
TONE
VOL2
Bias
- 1 -
NJW1160
I
PIN FUNCTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
INa
BBE1a
BBE2a
BBEOUTa
TONE INa
TONE-Ha
TONE-La
OUTa
AGC
SRS/SS-FIL1
CVB
CVA
SDA
SCL
GND
INb
BBE1b
BBE2b
BBEOUTb
TONE INb
TONE-Hb
TONE-Lb
OUTb
30
29
28
27
26
25
24
23
SRS-FIL2 22
VREF
CTH
CTL
AUX0
AUX1
Vcc
21
20
19
18
17
16
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Symbol
INa
BBE1a
BBE2a
BBE OUTa
TONE INa
TONE-Ha
TONE-La
OUTa
AGC
SRS/SS-FIL1
CVB
CVA
SDA
SCL
GND
Ach Input
Function
Ach BBE Filter1 (Process)
Ach BBE Filter2 (Lo Contour)
Ach Output for the Other Accessories
Ach Input From the Other Accessories
Ach Treble Filter
Ach Bass Filter
Ach Output
AGC Filter
SRS and Simulated Stereo Filter1
DAC Output for Bch Volume & Balance
DAC Output for Ach Volume & Balance
SDA Data Input (I
2
C BUS)
SCL Data Input (I
2
C BUS)
GND
No
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Symbol
Vcc
AUX1
AUX0
CTL
CTH
VREF
SRS-FIL2
OUTb
TONE-Lb
TONE-Hb
TONE INb
BBE OUTb
BBE2b
BBE1b
INb
Auxiliary Output1
Auxiliary Output0
Function
Power Supply Pin
DAC Output for Tone Low Frequency
DAC Output for Tone High Frequency
Reference Voltage
SRS Surround Filter2
Bch Output
Bch Bass Filter
Bch Treble Filter
Bch Input from the Other Accessories
Bch Output for the Other Accessories
Bch BBE Filter2 (Process)
Bch BBE Filter1 (Lo Contour)
Bch Input
-2-
NJW1160
I
ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
Supply Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
SYMBOL
V
+
RATING
14
700
-20 to +75
-40 to +125
UNIT
V
mW
°C
°C
P
D
Topr
Tstg
I
ELECTRICAL CHARACTERISTICS
( Ta=25°C, V+=9V, Rg=600Ω, R
L
=47kΩ, Vin=100mVrms/1kHz unless otherwise specified)
PARAMETER
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
Maximum Gain
Minimum Gain
Channel Separation
Output Noise 1
Output Noise 2
AUX Output Voltage
SYMBOL
V
+
TEST CONDITION
MIN.
7.5
TYP.
9.0
13
4.5
3.0
2.5
0.0
0.0
-
0.0
-
-
0.0
-
-
-90
(31.6)
-106
(5.0)
-
-
MAX.
13.0
25
5.0
-
-
1.5
2.0
-70
2.0
-70
0.5
2.0
-70
-70
-85
(56.2)
-96
(15.8)
5.0
0.3
UNIT
V
mA
V
Vrms
Vrms
dB
dB
dB
dB
dB
%
dB
dB
dB
dBV
(µVrms)
dBV
(µVrms)
V
I
CC
V
REF
V
IM
V
OM
G
CB
BA
BST
BA
CUT
BB
BST
BB
CUT
THD
G
VMAX
G
VMIN
CS
V
NO1
V
NO2
V
AUX
No Signal
No Signal
VOL=-20dB,THD=10%
OUTPUT
VOL=0dB,THD=1%
VOL=0dB
CHS=”0”,BAL=”11111”
CHS=”1”,BAL=”11111”
Vin = 1Vrms
CHS=”1”,BAL=”11111”
CHS=”0”,BAL=”11111”
Vin = 1Vrms
Vo=0.5Vrms
BW=400Hz to 30kHz
VOL= 0dB
VOL= MUTE
Vin = 2Vrms
VOL = 0dB
A-weighted
VOL = MUTE
A-weighted
Logic Output : High
Logic Output : Low
-
4.0
2.8
-
-1.5
-2.0
-
-2.0
-
-
-2.0
-
-
-
-
-
-
4.5
0
BW : Band Width
-3-
NJW1160
♦
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
BCT=”1”,TREB=”1111”,
f=10kHz
TRBE=”0000”,f=10kHz
BCT=”0”,TRBE=”1111”,
f=10kHz
BCB=”1”,BASS=”1111”,
f=100Hz
BASS=”0000”,f=100Hz
BCB=”0”,BASS=”1111”,
f=100Hz
MIN.
12.5
-2.0
-17.5
12.5
-2.0
-17.5
TYP.
15.0
0.0
-15.0
15.0
0.0
-15.0
MAX.
17.5
2.0
-12.5
17.5
2.0
-12.5
UNIT
dB
dB
dB
dB
dB
dB
♦
AGC CONTROL(AGC-ON)
PARAMETER
AGC Boost
AGC Flat1
AGC Flat2
AGC Flat3
AGC Flat4
AGC Cut
SYMBOL
AGC
BST
AGC
FLT1
AGC
FLT2
AGC
FLT3
AGC
FLT4
AGC
CUT
TEST CONDITION
Vin=50mVrms, f=1kHz
Vin=150mVrms, f=1kHz
Vin=300mVrms, f=1kHz
Vin=400mVrms, f=1kHz
Vin=540mVrms, f=1kHz
Vin=2Vrms, f=1kHz
MIN.
1.5
-2.5
-2.5
-2.5
-2.5
-14
TYP.
3.5
0.0
0.0
0.0
0.0
-10
MAX.
5.5
2.5
2.5
2.5
2.5
-6.0
UNIT
dB
dB
dB
dB
dB
dB
♦
BBE(BBE-ON)
PARAMETER
BBE Low Frequency
Boost Range
BBE High Frequency
Boost Range
SYMBOL
BBE
LOW
BBE
HIGH
TEST CONDITION
BBE-Low=”1111”, f = 50Hz
BBE-High=”1111”, f = 10KHz
MIN.
-
-
TYP.
15.0
15.0
MAX.
-
-
UNIT
dB
dB
♦
SIMULATED SURROUND
PARAMETER
SURROUND SIM A
SURROUND SIM B
♦
SRS 3D-Stereo
SRS GAIN HIGH 1
SRS GAIN HIGH 2
SRS GAIN LOW 1
SRS GAIN LOW 2
SRS GAIN HIGH 3
SRS GAIN HIGH 4
(Simulated Surround-ON, f=1kHz)
SYMBOL
SR
SIMA
SR
SIMB
TEST CONDITION
Ain+Bin
→
Aout
Ain+Bin
→
Bout
TEST CONDITION
Ain
→
Aout, Mode=High
Bin
→
Bout, Mode=High
Ain
→
Aout, Mode=Low
Bin
→
Bout, Mode=Low
Bin
→
Aout, Mode=High
Ain
→
Bout, Mode=High
MIN.
1.0
1.0
TYP.
3.0
3.0
MAX.
5.0
5.0
UNIT
dB
dB
(SRS 3D Stereo-ON, f=125Hz)
SYMBOL
SRS
GH1
SRS
GH2
SRS
GL1
SRS
GL2
SRS
GH3
SRS
GH4
MIN.
10.0
10.0
7.0
7.0
6.8
6.8
TYP.
12.0
12.0
9.0
9.0
8.8
8.8
MAX.
14.0
14.0
11.0
11.0
10.8
10.8
UNIT
dB
dB
dB
dB
dB
dB
PARAMETER
-4-
NJW1160
I
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
I C BUS Load Condition:
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
-
4.7
4.0
4.7
4.0
4.7
5.0
250
-
-
4.0
TYP.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
MAX.
5.0
1.5
10
10
0.4
-
100
-
-
-
-
-
-
-
1.0
300
-
UNIT
V
V
µA
µA
V
mA
kHz
µs
µs
µs
µs
µs
µs
ns
µs
ns
µs
Pull up resistance 4kΩ (Connected to +5V)
Load capacitance 200pF (Connected to GND)
SDA
t
BUF
t
R
t
F
t
HD:STA
SCL
t
HD:STA
t
LOW
P
S
t
HD:DAT
t
HIGH
t
SU:DAT
Sr
t
SU:STA
t
SU:STO
P
-5-
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