NJW1161
-1-
PRELIMINAL
Y
AUDIO PROCESSOR with SRS 3D STEREO
■
■■
■ GENERAL DESCRIPTION ■
■■
■ PACKAGE OUTLINE
The NJW1161 is an audio processor that includes 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 a 3D stereo
surround sound effect using only two speakers.
All of internal status and variables are controlled by I2C
BUS interface.
■
■■
■ FEATURES
Operating Voltage 7.5 to 13V
I2C BUS Interface
AGC Circuit (It reduces volume difference among input sources.)
SRS 3D Stereo
Simulated Surround
Bi-CMOS Technology
Package Outline SDIP30, SDMP30
■
■■
■ BLOCK DIAGRAM
NJW1161MNJW1161L
I2C Bus
Interface
VOL1
VOL1
SRS
3D Stereo
&
Simulated
Surround
Bias
VOL2
TONE
TONE
AGC
VOL2
NJW1161
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■
■■
■ PIN FUNCTION
No. Symbol Function No Symbol Function
1 IN1a Ach Input 16 Vcc Power Supply Pin
2 NC Non Connect 17 AUX1 Auxiliary Output1
3 NC Non Connect 18 AUX0 Auxiliary Output0
4 OUT1a Ach Output for the Other Accessories 19 CTL DAC Output for Tone Low Frequency
5 IN2a Ach Input From the Other Accessories 20 CTH DAC Output for Tone High Frequency
6 TONE-Ha Ach Treble Filter 21 VREF Reference Voltage
7 TONE-La Ach Bass Filter 22 SRS-FIL2 SRS Surround Filter2
8 OUT2a Ach Output 23 OUT2b Bch Output
9 AGC AGC Filter 24 TONE-Lb Bch Bass Filter
10 SRS/SS-FIL1 SRS and Simulated Stereo Filter1 25 TONE-Hb Bch Treble Filter
11 CVB DAC Output for Bch Volume & Balance 26 IN2b Bch Input from the Other Accessories
12 CVA DAC Output for Ach Volume & Balance 27 OUT1b Bch Output for the Other Accessories
13 SDA SDA Data Input (I2C BUS) 28 NC Non Connect
14 SCL SCL Data Input (I2C BUS) 29 NC Non Connect
15 GND GND 30 IN1b Bch Input
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
30
29
28
27
26
INa
NC
NC
TONE-Ha
TONE-La
OUT1a
IN2a
OUT2a
A
GC
SRS/SS-FIL1
CVB
CV
A
SD
A
SCL
GND
INb
NC
NC
TONE-Hb
TONE-Lb
IN2b
OUT2b
SRS-FIL2
VREF
CTH
25
24
23
22
21
CTL
UX0
UX1
Vcc
20
19
18
17
16
OUT1b
NJW1161
-3-
■
■■
■ ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER SYMBOL RATING UNIT
Supply Voltage V+ 14 V
Power Dissipation PD 700 mW
Operating Temperature Range Topr -20 to +75 °C
Storage Temperature Range Tstg -40 to +125 °C
■
■■
■ ELECTRICAL CHARACTERISTICS
( Ta=25°C, V+=9V, Rg=600Ω, RL=47kΩ, Vin=100mVrms/1kHz unless otherwise specified)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Operating Voltage V+ 7.5 9.0 13.0 V
Supply Current ICC No Signal - 10 25 mA
Reference Voltage VREF No Signal 4.0 4.5 5.0 V
Maximum Input Voltage VIM VOL=-20dB,THD=10% 2.8 3.0 - Vrms
Maximum Output Voltage VOM OUTPUT
VOL=0dB,THD=1% - 2.5 - Vrms
Channel Balance GCB VOL=0dB -1.5 0.0 1.5 dB
Balance Boost A BABST CHS=”0”,BAL=”11111” -2.0 0.0 2.0 dB
Balance Cut A BACUT CHS=”1”,BAL=”11111”
Vin = 1Vrms - - -70 dB
Balance Boost B BBBST CHS=”1”,BAL=”11111” -2.0 0.0 2.0 dB
Balance Cut B BBCUT CHS=”0”,BAL=”11111”
Vin = 1Vrms - - -70 dB
Total Harmonic Distortion THD Vo=0.5Vrms
BW=400Hz to 30kHz - - 0.5 %
Maximum Gain GVMAX VOL= 0dB -2.0 0.0 2.0 dB
Minimum Gain GVMIN VOL= MUTE - - -70 dB
Channel Separation CS Vin = 2Vrms - - -70 dB
Output Noise 1 VNO1 VOL = 0dB
A-weighted
-
-
-90
(31.6)
-85
(56.2)
dBV
(µVrms)
Output Noise 2 VNO2 VOL = MUTE
A-weighted
-
-
-106
(5.0)
-96
(15.8)
dBV
(µVrms)
Logic Output : High 4.5 - 5.0
AUX Output Voltage VAUX
Logic Output : Low 0 - 0.3
V
BW : Band Width
NJW1161
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♦
♦♦
♦ TONE CONTROL
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
High Frequency Boost HFBST BCT=”1”,TREB=”1111”,
f=10kHz 12.5 15.0 17.5 dB
High Frequency Flat HFFLT TRBE=”0000”,f=10kHz -2.0 0.0 2.0 dB
High Frequency Cut HFCUT BCT=”0”,TRBE=”1111”,
f=10kHz -17.5 -15.0 -12.5 dB
Low Frequency Boost LFBST BCB=”1”,BASS=”1111”,
f=100Hz 12.5 15.0 17.5 dB
Low Frequency Flat LFFLT BASS=”0000”,f=100Hz -2.0 0.0 2.0 dB
Low Frequency Cut LFCUT BCB=”0”,BASS=”1111”,
f=100Hz -17.5 -15.0 -12.5 dB
♦
♦♦
♦ AGC CONTROL(AGC-ON)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
AGC Boost AGCBST Vin=50mVrms, f=1kHz 1.5 3.5 5.5 dB
AGC Flat1 AGCFLT1 Vin=150mVrms, f=1kHz -2.5 0.0 2.5 dB
AGC Flat2 AGCFLT2 Vin=300mVrms, f=1kHz -2.5 0.0 2.5 dB
AGC Flat3 AGCFLT3 Vin=400mVrms, f=1kHz -2.5 0.0 2.5 dB
AGC Flat4 AGCFLT4 Vin=540mVrms, f=1kHz -2.5 0.0 2.5 dB
AGC Cut AGCCUT Vin=2Vrms, f=1kHz -14 -10 -6.0 dB
♦
♦♦
♦ SIMULATED SURROUND (Simulated Surround-ON, f=1kHz)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
SURROUND SIM A SRSIMA Ain+Bin → Aout 1.0 3.0 5.0 dB
SURROUND SIM B SRSIMB Ain+Bin → Bout 1.0 3.0 5.0 dB
♦
♦♦
♦ SRS 3D-Stereo (SRS 3D Stereo-ON, f=125Hz)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
SRS GAIN HIGH 1 SRSGH1 Ain → Aout, Mode=High 10.0 12.0 14.0 dB
SRS GAIN HIGH 2 SRSGH2 Bin → Bout, Mode=High 10.0 12.0 14.0 dB
SRS GAIN LOW 1 SRSGL1 Ain → Aout, Mode=Low 7.0 9.0 11.0 dB
SRS GAIN LOW 2 SRSGL2 Bin → Bout, Mode=Low 7.0 9.0 11.0 dB
SRS GAIN HIGH 3 SRSGH3 Bin → Aout, Mode=High 6.8 8.8 10.8 dB
SRS GAIN HIGH 4 SRSGH4 Ain → Bout, Mode=High 6.8 8.8 10.8 dB
NJW1161
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■
■■
■ I2C BUS BLOCK CHARACTERISTICS (SDA,SCL)
PARAMETER SYMBOL MIN. TYP. MAX. UNIT
High Level Input Voltage VIH 3.0 - 5.0 V
Low Level Input Voltage VIL 0 - 1.5 V
High Level Input Current IIH - - 10 µA
Low Level Input Current IIL - - 10 µA
Low Level Output Voltage (3mA at SDA pin) VOL 0 - 0.4 V
Maximum Output Current IOL -3.0 - - mA
Maximum Clock Frequency fSCL - - 100 kHz
Data Change Minimum Waiting Time tBUF 4.7 - - µs
Data Transfer Start Minimum Waiting Time tHD:STA 4.0 - - µs
Low Level Clock Pulse Width tLOW 4.7 - - µs
High Level Clock Pulse Width tHIGH 4.0 - - µs
Minimum Start Preparation Waiting Time tSU:STA 4.7 - - µs
Minimum Data Hold Time tHD:DAT 5.0 - - µs
Minimum Data Preparation Time tSU:DAT 250 - - ns
Rise Time tR - - 1.0 µs
Fall Time tF - - 300 ns
Minimum Stop Preparation Waiting Time tSU:STO 4.0 - - µs
I2C BUS Load Condition: Pull up resistance 4kΩ (Connected to +5V)
Load capacitance 200pF (Connected to GND)
SD
A
SCL
tBUF
tHD:STA
Sr
P
tLOW
tR
tHD:DAT tHIGH
tF
tSU:DAT
S P
tSU:STA t
SU:STO
tHD:STA
NJW1161
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TERMINAL DESCRIPTION
No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
1
30
INa
INb
Ach Input terminal
Bch Input terminal
V+/2
4
8
23
27
OUT1a
OUT2a
OUT2b
OUT1b
Ach Output for the Other Accessories
Ach Output
Bch Output
Bch Output for the Other Accessories
V+/2
10 SRS/SS-FIL1 SRS and Simulated Stereo Filter1
V+/2
6
25
TONE-Ha
TONE-Hb Treble (tone control) filter terminal
V+/2
V+
80k
20k
Vref
1,30 pin
22.2k
FB
10pin
4, 8
23,27pin
FB
50
FB 20k 6, 25pin
NJW1161
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TERMINAL DESCRIPTION
No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
7
24
TONE-La
TONE-Lb Bass (tone control) filter terminal
V+/2
9 AGC Capacitor connection terminal for
AGC attack and recovery time setting
-
11
12
CVB
CVA
Pop Noise Reduction
for Volume & Balance
-
13 SDA I2C data terminal -
14 SCL I2C clock terminal
-
12k
7, 24pin
FB
12k
400 400
4k
9pin
8k
11,12pin
13pin
8k
5V
4k
5V
8k
4k 14pin
NJW1161
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TERMINAL DESCRIPTION
No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
5
26
IN2a
IN2b
Ach Input from the Other Accessories
Bch Input from the Other Accessories
V+/2
21 Vref Reference voltage terminal
212k
212k
21pin
V+/2
17
18
AUX0
AUX1 Auxiliary 2 values voltage output terminal
0/5V
20
19
CTH
CTL
Pop Noise reduction for Bass Control
Pop Noise reduction for Treble Control
-
22 SRS-FIL2 SRS Surround Filter2
V+/2
15
16
V+
GND
Ground terminal
Supply voltage terminal - -
24k
5,26pin
5V
50
V+
17, 18pin
19pin 36k
FB 3k 22pin
NJW1161
-9-
■
■■
■ APPLICATION CIRCUIT
2
3
4
5
6
7
8
9
10
11
12
13
14
15
130
29
28
27
26
IN1a
NC
NC
TONE-Ha
TONE-La
OUT2a
AGC
SRS/SS-FIL1
16
17
18
19
20
CVB
CVA
SDA
SCL
GND
IN1b
NC
NC
TONE-Hb
TONE-Lb
OUT2b
SRS-FIL2
VREF
CTH
25
24
23
22
21
CTL
UX0
UX1
Vcc
4.7µ
4.7n
100n
4.7µ
4.7µ
4.7µ
1µ
22n
4.7µ
4.7µ
4.7µ
4.7n
100n
4.7µ
4.7µ
4.7µ
4.7µ
4.7µ
4.7µ
22µ
OUT1a
IN2a IN2b
OUT1b
4.7K
330nF
8.2n
(NOTE)
1. Separate the I2C bus line from the following terminals for avoiding digital noise problem.
Pin No. Symbol Pin No. Symbol Pin No. Symbol
6 TONE-Ha 10 SRS/SS-FIL1 24 TONE-Lb
7 TONE-La 22 SRS-FIL2 25 TONE-Hb
2. The constant of capacitors connected to the terminals No.10 and 22 are designated by SRS Labs.
Do not change the constant of these capacitors without the approval of SRS Labs.
NJW1161
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■
■■
■ APPLICATION NOTE
1. AGC (Auto Gain Control) Circuit
AGC circuit adjusts the input signal level with Boost/Attenuate circuit. AGC boost the low input signal level
and attenuate high input signal level automatically.
The AGC flat levels (150mV, 300mV, 400mV and 540mV) are selectable via I2C bus. (Refer to the following
figure.)
Attack-Recovery
Attack and recovery time in the attenuation processing depends on external part Ca, and it in the boost
processing depends on external part Cb. They become longer as the capacity bigger and become shorter as
it gets smaller. (Recommendation value: Ca=1µF, Cb=4.7µF)
Reducing the capacity of Ca may cause the distortion. As for Cb, since it serves as the click noise
prevention, reducing the capacity may cause the click noise upon volume changing.
Ir=0.5µA 9pin
Ca
Ra=4kΩ
Cb
11pin
12pin
Rb=8kΩ
Smoothing circuit of Attenuate Smoothing circuit of Boost
0.001
0.01
0.1
1
0.001 0.01 0.1 1
AGC Control
Output Voltage [Vrms]
Input Voltage [Vrms]
V+=9V, Vin(Ach+Bch), f=1kHz, Vo(Ach)OUTPUT
Rg=600Ω, Ta=25oC
150mV
300mV
400mV
540mV
AGC OFF
AGC ON
NJW1161
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2. Tone Control
a) Bass: Setting the Cut-off frequency
M changes by gain setting of Tone.
M ≈ 2.65 (±15dB)
M ≈ 3.45 (±10dB)
M ≈ 8.10 (±5dB)
b) Treble: Setting the Cut-off frequency
N changes by gain setting of Tone.
N ≈ 0.76 (±15dB)
N ≈ 0.58 (±10dB)
N ≈ 0.25 (±5dB)
3. AUX1, AUX0 Terminal
AUX1/0 are enable to control external logic circuit is
Source current : 1mA typ. (Ta=25˚C)
Sink current : 0.5mA typ. (Ta=25˚C)
4. Capacitor for Reference Voltage (21pin)
22µF should be recommended for ripple filter connected to Vref terminal (21pin).
Reducing this capacity may cause to reduce the maximum attenuation level and to increase the output
noise.
12k
8pin
23pin
C
Bass Filter
12k
k
C
M
fC122 ××
=
π
10k
7pin
24pin
C
Treble Filter
k
C
N
fC102 ××
=
π
NJW1161
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■
■■
■ DEFINITION OF I2C REGISTER
♦
♦♦
♦ I2C BUS FORMAT
MSB LSB MSB LSB MSB LSB
S Slave Address A Select Address A Data A P
1bit 8bit 1bit 8bit 1bit 8bit 1bit 1bit
S: Starting Term
A: Acknowledge Bit
P: Ending Term
♦
♦♦
♦ SLAVE ADDRESS
MSB LSB
1 0 0 0 0 0 1 R/W
R/W=0: Receive Only
R/W=1: No Output Data
♦
♦♦
♦ CONTROL REGISTER TABLE
The select address sets each function (Volume, Balance, AGC, Surround, Tone Control, AUX).
The auto increment function cycles the select address as follows.
00H→01H→02H→03H→04H→05H→00H
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
00H VOL
01H CHS BAL AGC SUR
02H BCB BASS BCSB
Don’t care Don’t care
03H BCT TREB BCST
Don’t care Don’t care
04H(✴) 0 0 0 0 0 0 0 0
05H OUT Don’t care Don’t care SUR0 AGC1 AGC0 AUX1 AUX0
(
✴) Please send the data only “0”
♦
♦♦
♦ CONTROL REGISTER DEFAULT VALUE
Control register default value is all “0”.
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
00H 0 0 0 0 0 0 0 0
01H 0 0 0 0 0 0 0 0
02H 0 0 0 0 0 0 0 0
03H 0 0 0 0 0 0 0 0
04H 0 0 0 0 0 0 0 0
05H 0 0 0 0 0 0 0 0
NJW1161
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INSTRUCTION CODE
a) MASTER VOLUME SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
00H VOL
The volume control for both Ach and Bch(0.33dB/step).
The volume is consisted of volume1 and volume2 and the level is divided into half to each volume1 and
volume2.
b) BALANCE, AGC AND SURROUND SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
01H CHS BAL AGC SUR
•CHS : Channel select for balance control
“0” : Ach “Bch is attenuated”
“1” : Bch “Ach is attenuated”
•BAL : Balance control for both Ach and Bch(1dB/Step)
The balance is consisted of volume1 and volume2 and the level is divided into half to each volume1 and
volume2.
•AGC : AGC switch
“0” : AGC OFF
“1” : AGC ON (Default Setting : 150mVrms)
•SUR : Surround mode switch
“0” : Surround OFF
“1” : Surround ON(Default Setting : Surround Effect1)
c)TONE CONTROL BASS SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
02H BCB BASS BCSB
Don’t Care Don’t Care
•BCB : Boost cut select for Bass control
“0” : Cut
“1” : Boost
•BASS: BASS control
Cut Level : -15dB to 0dB(1dB/Step)
Boost Level : 0dB to +15dB(1dB/Step)
•BCSB : Boost cut select for SUB-BASS control
“0” : Cut
“1” : Boost
NJW1161
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d) TONE CONTROL TREBLE SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
03H BCT TREB BCST
Don’t Care Don’t Care
•BCT : Boost cut select for Treble control
“0” : Cut
“1” : Boost
•TREB: Treble control(1dB/step)
Cut Level : -15dB to 0dB(1dB/Step)
Boost Level : 0dB to +15dB(1dB/Step)
•BCST : Boost cut select for Sub-Treble control
“0” : Cut
“1” : Boost
e)OUTPUT AND AUXILIARY SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
05H OUT Don’t Care Don’t Care SUR0 AGC1 AGC0 AUX1 AUX0
•OUT: ON/OFF Switch for OUTPUT
“0” : OFF
“1” : ON
•Surround Setting
Surround Function SUR0(05H:D4) SUR(01H:D0), Remarks
Surround OFF 0 0 Surround OFF
Surround Effect1 0 1 SRS 3D-Stereo – Low Mode
Surround Effect2 1 1 SRS 3D-Stereo – High Mode
Simulated Stereo 1 0 Monaural to Stereo
•AGC Level Setting
AGC Level AGC1(D3) AGC0(D2)
150mVrms 0 0
300mVrms 0 1
400mVrms 1 0
540mVrms 1 1
•AUX1/AUX0: Auxiliary port High/Low
“0” : Logic output ”Low”
“1” : Logic output ”High”
NJW1161
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MASTER VOLUME (Select Address : 00H)
VOL
Gain(dB) HEX D7 D6 D5 D4 D3 D2 D1 D0
0 FF 1 1 1 1 1 1 1 1
-1 FC 1 1 1 1 1 1 0 0
-2 F9 1 1 1 1 1 0 0 1
-3 F6 1 1 1 1 0 1 1 0
-4 F3 1 1 1 1 0 0 1 1
-5 F0 1 1 1 1 0 0 0 0
-6 ED 1 1 1 0 1 1 0 1
-7 EA 1 1 1 0 1 0 1 0
-8 E7 1 1 1 0 0 1 1 1
-9 E4 1 1 1 0 0 1 0 0
-10 E1 1 1 1 0 0 0 0 1
-11 DE 1 1 0 1 1 1 1 0
-12 DB 1 1 0 1 1 0 1 1
-13 D8 1 1 0 1 1 0 0 0
-14 D5 1 1 0 1 0 1 0 1
-15 D2 1 1 0 1 0 0 1 0
-16 CF 1 1 0 0 1 1 1 1
-17 CC 1 1 0 0 1 1 0 0
-18 C9 1 1 0 0 1 0 0 1
-19 C6 1 1 0 0 0 1 1 0
-20 C3 1 1 0 0 0 0 1 1
-21 C0 1 1 0 0 0 0 0 0
-22 BD 1 0 1 1 1 1 0 1
-23 BA 1 0 1 1 1 0 1 0
-24 B7 1 0 1 1 0 1 1 1
-25 B4 1 0 1 1 0 1 0 0
-26 B1 1 0 1 1 0 0 0 1
-27 AE 1 0 1 0 1 1 1 0
-28 AB 1 0 1 0 1 0 1 1
-29 A8 1 0 1 0 1 0 0 0
-30 A5 1 0 1 0 0 1 0 1
-31 A2 1 0 1 0 0 0 1 0
-32 9F 1 0 0 1 1 1 1 1
-33 9C 1 0 0 1 1 1 0 0
-34 99 1 0 0 1 1 0 0 1
-35 96 1 0 0 1 0 1 1 0
-36 93 1 0 0 1 0 0 1 1
-37 90 1 0 0 1 0 0 0 0
-38 8D 1 0 0 0 1 1 0 1
-39 8A 1 0 0 0 1 0 1 0
-40 87 1 0 0 0 0 1 1 1
-41 84 1 0 0 0 0 1 0 0
-42 81 1 0 0 0 0 0 0 1
NJW1161
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MASTER VOLUME (Select Address : 00H)
VOL
Gain(dB) HEX D7 D6 D5 D4 D3 D2 D1 D0
-43 7E 0 1 1 1 1 1 1 0
-44 7B 0 1 1 1 1 0 1 1
-45 78 0 1 1 1 1 0 0 0
-46 75 0 1 1 1 0 1 0 1
-47 72 0 1 1 1 0 0 1 0
-48 6F 0 1 1 0 1 1 1 1
-49 6C 0 1 1 0 1 1 0 0
-50 69 0 1 1 0 1 0 0 1
-51 66 0 1 1 0 0 1 1 0
-52 63 0 1 1 0 0 0 1 1
-53 60 0 1 1 0 0 0 0 0
-54 5D 0 1 0 1 1 1 0 1
-55 5A 0 1 0 1 1 0 1 0
-56 57 0 1 0 1 0 1 1 1
-57 54 0 1 0 1 0 1 0 0
-58 51 0 1 0 1 0 0 0 1
-59 4E 0 1 0 0 1 1 1 0
-60 4B 0 1 0 0 1 0 1 1
-61 48 0 1 0 0 1 0 0 0
-62 45 0 1 0 0 0 1 0 1
-63 42 0 1 0 0 0 0 1 0
-64 3F 0 0 1 1 1 1 1 1
-65 3C 0 0 1 1 1 1 0 0
-66 39 0 0 1 1 1 0 0 1
-67 36 0 0 1 1 0 1 1 0
-68 33 0 0 1 1 0 0 1 1
-69 30 0 0 1 1 0 0 0 0
-70 2D 0 0 1 0 1 1 0 1
-71 2A 0 0 1 0 1 0 1 0
-72 27 0 0 1 0 0 1 1 1
-73 24 0 0 1 0 0 1 0 0
-74 21 0 0 1 0 0 0 0 1
-75 1E 0 0 0 1 1 1 1 0
-76 1B 0 0 0 1 1 0 1 1
-77 18 0 0 0 1 1 0 0 0
-78 15 0 0 0 1 0 1 0 1
-79 12 0 0 0 1 0 0 1 0
-80 0F 0 0 0 0 1 1 1 1
-81 0C 0 0 0 0 1 1 0 0
-82 09 0 0 0 0 1 0 0 1
-83 06 0 0 0 0 0 1 1 0
-84 03 0 0 0 0 0 0 1 1
Mute 00 0 0 0 0 0 0 0 0
NJW1161
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BALANCE(Select Address : 01H)
Channel
Select (CHS) D7
Ach(Bch is attenuated) 0
Bch(Ach is attenuated) 1
BAL
Gain(dB) D6 D5 D4 D3 D2
0 0 0 0 0 0
-1 0 0 0 0 1
-2 0 0 0 1 0
-3 0 0 0 1 1
-4 0 0 1 0 0
-5 0 0 1 0 1
-6 0 0 1 1 0
-7 0 0 1 1 1
-8 0 1 0 0 0
-9 0 1 0 0 1
-10 0 1 0 1 0
-11 0 1 0 1 1
-12 0 1 1 0 0
-13 0 1 1 0 1
-14 0 1 1 1 0
-15 0 1 1 1 1
-16 1 0 0 0 0
-17 1 0 0 0 1
-18 1 0 0 1 0
-19 1 0 0 1 1
-20 1 0 1 0 0
-21 1 0 1 0 1
-22 1 0 1 1 0
-23 1 0 1 1 1
-24 1 1 0 0 0
-25 1 1 0 0 1
-26 1 1 0 1 0
-27 1 1 0 1 1
-28 1 1 1 0 0
-29 1 1 1 0 1
-30 1 1 1 1 0
Mute 1 1 1 1 1
NJW1161
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TONE CONTROL BASS (Select Address : 02H)
BCB
Bass
Cut or Boost D7
Cut 0
Boost 1
BASS
Cut Gain(dB) Boost Gain(dB) D6 D5 D4 D3
-15 15 1 1 1 1
-14 14 1 1 1 0
-13 13 1 1 0 1
-12 12 1 1 0 0
-11 11 1 0 1 1
-10 10 1 0 1 0
-9 9 1 0 0 1
-8 8 1 0 0 0
-7 7 0 1 1 1
-6 6 0 1 1 0
-5 5 0 1 0 1
-4 4 0 1 0 0
-3 3 0 0 1 1
-2 2 0 0 1 0
-1 1 0 0 0 1
0 0 0 0 0 0
NJW1161
-19-
TONE CONTROL TREBLE (Select Address : 03H)
BCT Treble
Cut or Boost D7
Cut 0
Boost 1
TREB
Cut Gain(dB) Boost
Gain(dB) D6 D5 D4 D3
-15 15 1 1 1 1
-14 14 1 1 1 0
-13 13 1 1 0 1
-12 12 1 1 0 0
-11 11 1 0 1 1
-10 10 1 0 1 0
-9 9 1 0 0 1
-8 8 1 0 0 0
-7 7 0 1 1 1
-6 6 0 1 1 0
-5 5 0 1 0 1
-4 4 0 1 0 0
-3 3 0 0 1 1
-2 2 0 0 1 0
-1 1 0 0 0 1
0 0 0 0 0 0
NJW1161
- 20 -
TYPICAL CHARACTERISTICS
0
5
10
15
051015
Supply Current vs Supply Voltage
Supply Current [mA]
Supply Voltage [V]
Ta=25oC
8
10
12
14
16
050100
Supply Current vs Temperature
Supply Current [mA]
Temperature [oC]
V+=9V
-100
-80
-60
-40
-20
0
-30 -20 -10 0 10 20 30
Gain vs Balance Control
Gain [dB]
Balance Control [dB]
V+=9V, Vin=1Vrms, f=1kHz, Rg=600Ω
Vo(Ach)
75, 25, -20oC
Vo(Bch)
75, 25, -30oC
MUTE -30 -20 -10 0 -10 -20 -30 MUTE
-100
-80
-60
-40
-20
0
-80-70-60-50-40-30-20-100
Gain vs Volume Control
Gain [dB]
Volume Control [dB]
V+=9V, Vin(Ach)=1Vrms,f=1kHz,
OUTPUT,Rg=600Ω, Ta=25oC
MUTE
75,25,-20oC
-120
-110
-100
-90
-80
-70
-60
-80-70-60-50-40-30-20-100
Output Noise vs Volume Control
Gain [dB]
Volume Control [dB]
V+=9V, OUTPUT,A-Weighted
Rg=600Ω, Ta=25oC
MUTE -120
-100
-80
-60
-40
0 50 100
Output Noise vs Temperature
Output Noise [dBV]
Temperature [oC]
V+=9V, Rg=600Ω, A-Weighted
Vol=0dB
Vol=MUTE
NJW1161
-21-
TYPICAL CHARACTERISTICS
0.01
0.1
1
10
100
0.01 0.1 1
THD+N vs Input Voltage
THD+N [ % ]
Input Voltage [Vrms]
V+=9V, Vin(Ach), f=1kHz, Vo(Ach)OUTPUT
Rg=600Ω BW=400Hz-30kHz, Vol=-20dB
75oC
-20oC
25oC
0.01
0.1
1
10
100
0.01 0.1 1
THD+N vs Input Voltage
THD+N [ % ]
Input Voltage [Vrms]
V+=9V, Vin(Ach), f=1kHz, Vo(Ach)OUTPUT
Rg=600Ω, BW=400Hz-30kHz, Ta=25oC
0dB
-30dB
-20dB
-10dB
0.01
0.1
1
10
100
0.01 0.1 1
THD+N vs Output Voltage
THD+N [ % ]
Output Voltage [Vrms]
V+=9V, Vin(Ach), f=1kHz, Vo(Ach)OUTPUT
Rg=600Ω, BW=400Hz-30kHz, Vol=0dB
75oC
-20oC
25oC
0.01
0.1
1
10
100
0.01 0.1 1
THD+N vs Output Voltage
THD+N [ % ]
Output Voltage [Vrms]
V+=9V, Vin(Ach), f=1kHz, Vo(Ach)OUTPUT
BW=400Hz-30kHz, Rg=600Ω, Ta=25oC
0dB
-30dB
-20dB -10dB
0
20
40
60
80
100
120
100 1000 104
Gain vs Frequency (MUTE)
Gain [dB]
Frequency [Hz]
V+=9V, Vin(Ach)=1Vrms, Vol=MUTE
Vo(Ach)OUTPUT, Rg=600Ω, Ta=25oC
0
20
40
60
80
100
100 1000 104
Channel Separation vs Frequency
Channel Separation [Hz]
Freqency [Hz]
V+=9V, Vin=2Vrms, f=1kHz, Vo=OUTPUT
Rg=600Ω, Vol=0dB, Ta=25oC
Vin(Ach)-Vo(Bch)
Vin(Bch)-Vo(Ach)
NJW1161
- 22 -
TYPICAL CHARACTERISTICS
-2
-1
0
1
2
0246810
AGC Attack Time (C:9pin=1 µ
µµ
µF)
Output Voltage [V]
Time [ms]
V+=9V, Vin(Ach+Bch)=1Vrms,f=20kHz,Vo(Ach)OUTPUT
AGC level=0.15V,Rg=600Ω,Ta=25oC
-0.2
-0.1
0
0.1
0.2
0 100 200 300 400 500
AGC Recovery Time (C:9pin=1 µ
µµ
µF)
Output Voltage [V]
Time [ms]
V+=9V, Vin(Ach+Bch)=1Vrms, f=10kHz,Vo(Ach)OUTPUT
AGC level=0.15V,Rg=600Ω,Ta=25oC
-20
-10
0
10
20
100 1000 104
Gain vs Frequency (TONE)
Gain [dB]
Frequency [Hz]
V+=9V, Vin(Ach)=0.1Vrms,Gv= +-15dB
Vo(Ach), Rg=600Ω, Ta=25oC
C(6,25pin) = 1nF, 2.2nF, 4.7nF, 10nF
10nF
4.7nF
2.2nF
1nF
-20
-10
0
10
20
100 1000 104
Gain vs Frequency (TONE)
Gain [dB]
Frequency [Hz]
V+=9V, Vin(Ach)=0.1Vrms,Gv= +-15dB
Vo(Ach), Rg=600Ω, Ta=25oC
C(7,24pin) = 47nF, 100nF, 220nF, 470nF
470nF
220nF
100nF
47nF
-20
-10
0
10
20
100 1000 104
Gain vs Frequency (TONE)
Gain [dB]
Frequency [Hz]
V+=9V, Vin(Ach)=0.1Vrms,Gv:3dB steps
Vo(Ach), Rg=600Ω, Ta=25oC
0.001
0.01
0.1
1
0.001 0.01 0.1 1
AGC Control
Output Voltage [Vrms]
Input Voltage [Vrms]
V+=9V, Vin(Ach+Bch), f=1kHz, Vo(Ach)OUTPUT
Rg=600Ω, Ta=25oC
150mV
300mV
400mV
540mV
OFF
NJW1161
-23-
TYPICAL CHARACTERISTICS
-2
-1
0
1
2
0246810
AGC Attack Time (C:9pin=2.2 µ
µµ
µF)
Output Voltage [V]
Time [ms]
V+=9V, Vin(Ach+Bch)=1Vrms,f=20kHz,Vo(Ach)OUTPUT
AGC level=0.15V,Rg=600Ω,Ta=25oC
-0.2
-0.1
0
0.1
0.2
0 100 200 300 400 500
AGC Recovery Time (C:9pin=2.2 µ
µµ
µF)
Output Voltage [V]
Time [ms]
V+=9V, Vin(Ach+Bch)=1 to 0.05Vrms, f=10kHz,
Vo(Ach)OUTPUT,AGC level=0.15V,Rg=600Ω,Ta=25oC
-2
-1
0
1
2
0246810
AGC Attack Time (C:9pin=0.47 µ
µµ
µF)
Output Voltage [V]
Time [ms]
V+=9V, Vin(Ach+Bch)=1Vrms,f=20kHz,Vo(Ach)OUTPUT
AGC level=0.15V,Rg=600Ω,Ta=25oC
-0.2
-0.1
0
0.1
0.2
0 100 200 300 400 500
AGC Recovery Time (C:9pin=0.47 µ
µµ
µF)
Output Voltage [V]
Time [ms]
V+=9V, Vin(Ach+Bch)=1 to 0.05Vrms, f=10kHz,
Vo(Ach)OUTPUT,AGC level=0.15V,Rg=600Ω,Ta=25oC
NJW1161
- 24 -
TYPICAL CHARACTERISTICS
-100
-50
0
50
100
150
200
100 1000 104
Phase vs Frequency (Simulated)
Phase [deg]
Frequency [Hz]
V+=9V, Vin(A+Bch)=0.1Vrms, Rg=600Ω,
Ta=25oC
BchOUT
AchOUT
-20
-10
0
10
20
100 1000 104
Gain vs Frequency (SRS&Simulated)
Gain [dB]
Frequency [Hz]
V+=9V, Vin=0.1Vrms,OUTPUT, Rg=600ohm,
Ta=25oC
SRS:Low
AIN-AOUT
SRS:Low
AIN-BOUT
Simulated
(A+B)IN-AOUT
NJW1161
-25-
■
■■
■NOTE
1)The SRS technology right incorporated in the NJW1161 is owned by SRS Labs, a U.S. Corporation and
licensed to New Japan Radio Co., Ltd. SRS is protected under U.S. and foreign patents issued and/or pending.
SRS and the , are trademarks of SRS Labs, Inc. in the United States and selected foreign countries.
Neither the purchase of the NJW1161, nor the corresponding sale of audio enhancement equipment conveys
the right to sell commercialized recording made with any SRS technology.
SRS Labs requires that all users of the NJW1161 must enter into a license agreement directly with SRS Labs
if the royalty is not included in the purchase price. SRS Labs also requires any users to comply with all rules
and regulations as outlined in the SRS Trademark Usage Manual.
For further information, please contact:
SRS Labs, Inc.
2909 Daimler Street, Santa Ana, CA 92705 USA
Tel : (949)442-1070 Fax: : (949)852-1099 www.srslabs.com
2)Purchase of I2C components of New Japan Radio Co., Ltd or one of its sublicensed Associated Companies
conveys a license under the Philips I2C Patent Rights to use these components in an I2C system, provided that
the system conforms to the I2C Standard Specification as defined by Philips.
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.