NJW1191
– 1 –
4-channel Electronic Volume with Input Selecto r
!GENERAL DESCRIPTION !PACKAGE OUTLINE
The NJW1191 is 4-channel Electronic Volume with input
selector. It includes main volume, balance and fader trim, 4
inputs selector, loudness and tone control.
The NJW1191 performs low noise and low distortion
characteristics with resistance ladder type electrical volume.
All of internal status and variables are controlled by I
2
C BUS
interface.
!FEATURES
●
Operating Voltage 7.5 to 13V
●
I
2
C BUS Interface
●
Low Output Noise -103dBV typ.
●
Low Distortion 0.01% typ.
●
4ch Input Selector
●
Loudness
●
Tone Control Bass / Treble
●
Main Volume
●
Balance & Fader
●
Bi-CMOS Technology
●
Package Outline SSOP32
!BLOCK DIAGRAM
NJW1191V
Tone
Tone
I
2
C Interface Bias
0dB,+6dB
,
+12dB
,
+18dB
0dB,+6dB
,
+12dB
,
+18dB
NJW1191
– 2 –
!PIN FUNCTION
No. SYMBOL FUNCTION
No. SYMBOL FUNCTION
1
GND Ground
17
SDA I
2
C Data Input / Acknowledge Output
2
VREF Reference Voltage
18
RL_OUT Lch Rear Vol. Output
3
IN1R Rch Input 1
19
FL_OUT Lch Front Vol. Output
4
IN2R Rch Input 2
20
VOL2IN_L Lch 2
nd
Vol. Input
5
IN3R Rch Input 3
21
TONEOUT_L Lch
Tone Output
6
IN4R Rch Input 4
22
DCCL Lch Tone Bass DC cut Capacitor
7
TAP1R Rch Loudness High Freq. Time Constant
23
TLCL Lch Tone Bass Time Constant
8
TAP2R Rch Loudness Low Freq. Time Constant
24
THCL Lch Tone Treble Time Constant
9
THCR Rch Tone Treble Time Constant
25
TAP2L Lch Loudness Low Freq. Time Constant
10
TLCR Rch Tone Bass Time Constant
26
TAP1L Lch Loudness High Freq. Time Constant
11
DCCR Rch Tone Bass DC cut Capacitor
27
IN4L Lch Input 4
12
TONEOUT_R Rch
Tone Output
28
IN3L Lch Input 3
13
VOL2IN_R Rch 2
nd
Vol. Input
29
IN2L Lch Input 2
14
FR_OUT Rch Front Vol. Output
30
IN1L Lch Input 1
15
RR_OUT Rch Rear Vol. Output
31
N.C No Connect
16
SCL I
2
C Clock Input
32
V+ Power Supply
116
1732
NJW1191
– 3 –
!
ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER SYMBOL RATING UNIT
Supply Voltage V
+
15 V
Power Dissipation P
D
800
NOTE: EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
mW
Operating Temperature Range Topr -40 to +85 °C
Storage Temperature Range Tstg -40 to +125 °C
!
!!
!
ELECTRICAL CHARACTERISTICS
( Ta=25°C, V+=9V, R
g
=600Ω, R
L
=47kΩ, Vin=1.5Vrms,f=1kHz, all controls flat(Gv=0dB) unless otherwise specified)
PARAMETER SYMBOL Condition MIN. TYP. MAX. UNIT
Operating Voltage V
+
7.5 9.0 13.0 V
Supply Current I
CC
No Signal - 13 18 mA
Reference Voltage V
REF
No Signal 4.0 4.5 5.0 V
Maximum Input Voltage V
IM
VOL1=-20dB
THD=1% 2.0 2.4 - Vrms
Maximum
Output Voltage 1 V
OM1
THD=1% 2.0 2.4 - Vrms
Maximum
Output Voltage 2 V
OM2
THD=1%, f=50kHz 1.5 2.4 - Vrms
Voltage Gain 1 G
V1
VOL1=0dB, AMP GAIN=+18dB
Vin=0.1Vrms +16 +18 +20 dB
Voltage Gain 2 G
V2
-1 0 1 dB
Voltage Gain 3 G
V3
VOL1=-68dB -71 -68 -65 dB
Voltage Gain 4 G
V4
VOL2FL,FR,BL,BR=-42dB -45 -42 -39 dB
Mute Level Mute VOL2FL,FR,BL,BR=Mute
Filter : 400Hz to 30kHz - -100 -90 dB
Channel Balance G
CB
-1 0 1 dB
Total Harmonic Distortion THD BW : 400Hz to 30kHz - 0.01 0.05 %
Output Noise Voltage 1 V
NO1
Rg=0Ω, Filter : A-weighted -
-
-103
(7)
-90
(32)
dBV
(µVrms)
Output Noise Voltage 2 V
NO2
VOL2FL,FR,BL,BR=Mute
Rg=0Ω, Filter : A-weighted
-
-
-108
(4)
-95
(17.8)
dBV
(µVrms)
Cross Talk CT
Selected Input : No signal
Rg=0Ω
Unselected Input : Input signal
Filter : 400Hz to 30kHz
90 100 - dB
Channel Separation CS Rg=0Ω, Filter : 400Hz to 30kHz 90 100 - dB
♦LOUDNESS
Maximum Low Boost Level G
LDL
Loudness=ON,VOL1=-24dB,f=40Hz
9.5 12 14.5 dB
Maximum High Boost Level G
LDH
Loudness=ON,VOL1=-24dB,f=10kHz
2.5 5 7.5 dB
♦TONE
Treble Boost Level G
HBST
BCT=”1”,TREB=”111”, f=10kHz
Vin=0.1Vrms
11.5 14.0 16.5 dB
Treble Flat Level G
HFLT
TREB=”000”,f=10kHz
-2.0 0.0 2.0 dB
Treble Cut Level G
HCUT
BCT=”0”,TREB=”111”, f=10kHz
-16.5 -14.0 -11.5 dB
Bass Boost Level G
LBST
BCB=”1”,BASS=”111”, f=100Hz
Vin=0.1Vrms
11.5 14.0 16.5 dB
Bass Flat Level G
LFLT
BASS=”000”,f=100Hz
-2.0 0.0 2.0 dB
Bass Cut Level G
LCUT
BCB=”0”,BASS=”111”, f=100Hz
-16.5 -14.0 -11.5 dB
NJW1191
– 4 –
!TIMING ON THE I
2
C BUS (SDA,SCL)
!CHARACTERISTICS OF I/O STA GES FOR I2C BUS (SDA,SCL)
I
2
C BUS Load Conditions
STANDARD MODE : Pull up resistance 4kΩ (Connected to +5V), Load capacitance 200pF (Connected to GND)
Standard mode
PARAMETER SYMBOL
MIN. TYP. MAX.
UNIT
Low Level Input Voltage V
IL
0.0 - 1.5 V
High Level Input Voltage V
IH
2.5 - 5.0 V
Low level output voltage (3mA at SDA pin) V
OL
0 - 0.4 V
Input current each I/O pin with an input voltage
between 0.1V
DD
and 0.9V
DDmax
I
i
-10 - 10 µA
SDA
SCL
t
f
t
HD:STA
t
LOW
t
r
t
HD:DAT
t
HIGH
t
f
t
SU:DAT
S
t
SU:STA
t
HD:STA
t
SP
t
SU:STO
Sr
t
r
t
BUF
PS
NJW1191
– 5 –
!CHARACTERISTICS OF BUS LINES (SDA,SCL) FOR I
2
C-BUS DEVICES
Standard mode
PARAMETER SYMBOL
MIN. TYP. MAX.
UNIT
SCL clock frequency f
SCL
- - 100 kHz
Hold time (repeated) START condition. t
HD:STA
4.0 - - µs
Low period of the SCL clock t
LOW
4.7 - - µs
High period of the SCL clock t
HIGH
4.0 - - µs
Set-up time for a repeated START condition t
SU:STA
4.7 - - µs
Data hold time
NOTE)
t
HD:DAT
0 - - µs
Data set-up time t
SU:DAT
250 - - ns
Rise time of both SDA and SCL signals t
r
- - 1000 ns
Fall time of both SDA and SCL signals t
f
- - 300 ns
Set-up time for STOP condition t
SU:STO
4.0 - - µs
Bus free time between a STOP and START condition t
BUF
4.7 - - µs
Capacitive load for each bus line C
b
- - 400 pF
Noise margin at the Low level V
nL
0.5 - - V
Noise margin at the High level
V
nH
1 - -
V
C
b
; total capacitance of one bus line in pF.
NOTE). Data hold time : t
HD:DAT
Please hold the Data Hold Time (t
HD:DAT
) to 300ns or more to avoid status of unstable at SCL falling edge.
The SDA block in the NJW1191 does not hold data. Add external data-delay-circuit of the SDA terminal, in case of not
providing a hold time of at least 300nsec for the SDA in the master device.
The time-consists of the data-delay-circuit of the SDA terminal are as follows.
(a) Low level ! High level : T
LH
≈ R
P
*C
D
(b) High level ! Low level : T
HL
≈ R
D
*C
D
In addition, Schottky barrier diode (SBD) influences a Low level at the Acknowledge. Therefore choose the low forward
voltage (Vf) as much as possible.
MA STER
SCL
SDA
V
DD
R
P
R
P
R
D
SBD
C
D
NJW1191
NJW1191
– 6 –
!APPLICATION CIRCUIT
!
!!
!APPLICATION NOTES
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
+
+
+
+
GND
VREF
BIAS
INPUT
SELECTOR
MASTER
VOLUME
& LOUDNESS
MASTER
VOLUME
& LOUDNESS
TONE
CONTROL
FRONT
VOLUME
REAR
VOLUME
FRONT
VOLUME
REAR
VOLUME
I
2
C BUS
INTERFACE
SCL
SDA
10µF
1µF
1µF
1µF
1µF
470pF
39kΩ
4.7kΩ
100nF
4.7nF
100nF
4.7µF
2.2kΩ
1µF
1µF
100nF
4.7µF
2.2kΩ
4.7nF
4.7kΩ
100nF
39kΩ
470pF
1µF
1µF
1µF
1µF
100µF
+9V
V+
+
+
+
+
+ +
+
+
+
+
+
10µF
+
10µF
10µF
+
10µF
+
TONE
CONTROL
INPUT
SELECTOR
C1
C2
C3
C4
C5
C6
C7
R1
R2
C8
C9
C10
R3
C11
C12
C13
R4
100ΩR5 100Ω
C14
C15
C16
C17 R6
C18
C19
C20
R7
R8
C21
C21
C22
C23
C24
C25
Pin No. Function Note
2VREF
C1 can be adjusted rise and fall time of reference voltage at power on and off. Take care that the reduced C1makes
sensitive to ripple of power supply.
3 - 6, 27 -30 Inputs The Input impedance is designed about 48k ohms. The ground line should be inserted between each input lines to
avoid cross talk.
7,8,25,26 Loudness filter
Taps
Loudness frequency can be adjusted with external parts(See page 6) . Especialy, 8 and 25 pins should be kept from
large signal lines such as digital signal lines or the other sound signal lines to avoid digitaly noise or cross talk in
Loudness mode.
9,10,11,22,23,
24
Tone filter
terminals
Tone Bass and Treble cut off frequency can be adjusted with external parts(See page6). These pins should be kept
from large signal lines such as digital signal lines or the other sound signal lines to avoid the digitaly noise or cross
talk.
12,21 Tone outputs Output impedance is designed about 50 ohms.
13,20 Balance Fedar
volume inputs Input impedance is designed about 24k ohms.
14,15,18,19
Balance Fedar
volume
outputs
Output impedance is designed about 50 ohms.
16,17 I
2
C control
signal ports
These terminals should be inserted resistance about 100 ohms between terminal and signal source to reduce the
digitaly noise. These lines should be kept from analog signal lines and or near by the chip to avoid digitaly noise.
Inserted ground line between analog line and digital line should be recommended.
NJW1191
– 7 –
!
!!
!APPLICATION NOTES
< Loudness fc adjustment >
Loudness High and Low Boost cut off frequencies are able to adjust with the external parts as shown in fig.A.
They are given by the functions below.
< Tone fc adjustment >
Tone High and Low cut off frequencies are able to adjust with the external parts as shown in fig.B. They are given
by the functions below. .
High Boost cut off frequency: f
cH
=
e1e1
CR2
1⋅
π
(Hz)
Low Boost cut off frequency: f
cL
=
e2e2
CR2
1⋅
π
(Hz)
fig. A Loudness circuit
(C6, C21)
(R1, R8)
(R2, R7)
(C7, C20)
TAP1
(7, 26pin)
TAP
2
(8, 25pin)
MASTER VOLUME
& LOUDNESS
R
e1
R
e2
C
e1
C
e2
<NOTE>
R
e2
should be fixed to 4.7kΩfor the precise level of volume in
Loudness mode.
fig. B Tone circuit
(Boost)
(Cut)
Treble cut off frequency: f
cT
=
e33B
CR2 ⋅
π
1
(Hz)
(R
3B
=5.5kΩ at 14dB set)
Bass cut off frequency: f
cBL
=
e4e34B4A
e34B
CRRR2
)R(R ⋅⋅+ +)(
π
(Hz)
DC cut off frequency: f
cDC
=
e5e34B
CRR2 ⋅+ )( 1
π
(Hz)
(R
4B
=3.3kΩ at 14dB set)
R
3B
C
e3
C
e4
C
e5
R
e3
(C8, C19) (C9, C18) (C10, C17)
(R3, R6)
THC
(9, 24pin)
TLC
(10, 23pin)
DCC
(11, 22pin)
(R
3A
+R
3B
= 33kΩ)
R
3A
R
4A
R
4B
(R
4A
+R
4B
= 33kΩ)
C
e3
C
e4
C
e5
R
e3
(C8, C19) (C9, C18) (C10, C17)
(R3, R6)
THC
(9, 24pin)
TLC
(10, 23pin)
DCC
(11, 22pin)
R
3B
R
3A
(R
3A
+R
3B
= 33kΩ)
R
4A
R
4B
(R
4A
+R
4B
= 33kΩ)
NJW1191
– 8 –
!
TERMINAL DESCRIPTION
No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
2 VREF Reference Voltage
V+/2
3
4
5
6
30
29
28
27
IN1R
IN2R
IN3R
IN4R
IN1L
IN2L
IN3L
IN4L
Rch Input 1
Rch Input 2
Rch Input 3
Rch Input 4
Lch Input 1
Lch Input 2
Lch Input 3
Lch Input 4
V+/2
7
26
TAP1R
TAP1L
Rch Loudness High Freq. Time
Constant
Lch Loudness High Freq. Time
Constant
V+/2
8
25
TAP2R
TAP2L
Rch Loudness Low Freq. Time
Constant
Lch Loudness Low Freq. Time
Constant
V+/2
200k
200k
V+
GND
18k
30k
GND
V+
VREF
50
GND
V+
50
GND
VREF
V+
50
4.7k
VREF
NJW1191
– 9 –
!
TERMINAL DESCRIPTION
No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
9
24
THCR
THCL
Rch Tone Treble Time Constant
Lch Tone Treble Time Constant
V+/2
10
23
TLCR
TLCL
Rch Tone Bass Time Constant
Lch Tone Bass Time Constant
V+/2
11
22
DCCR
DCCL
Rch Tone Bass DC cut
Capacitor
Lch Tone Bass DC cut
Capacitor
V+/2
12
21
TONEOUT_R
TONEOUT_L
Rch Tone Output
Lch Tone Output
V+/2
GND
50
V+
5k 1.8k
GND
50
V+
800 6.7k 5.4k
GND
50
V+
3k 2k
GND
V+
50
7k6k3k
NJW1191
– 10 –
!
TERMINAL DESCRIPTION
No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
13
20
VOL2IN_R
VOL2IN_L
Rch 2
nd
Vol. Input
Lch 2
nd
Vol. Input
V+/2
14
15
19
18
FR_OUT
RR_OUT
RL_OUT
FL_OUT
Rch Front Vol. Output
Rch Rear Vol. Output
Lch Front Vol. Output
Lch Rear Vol. Output
V+/2
16 SCL I
2
C Clock Input
-
17
SDA
I
2
C Data Input / Acknowledge
Output
-
12k
GND
V+
2.5k
12k 2.5k
70
70
GND
V+
50
VREF
10k10k
GND
4k
12k
4k
GND
12k
NJW1191
– 11 –
!DEFINITION OF I
2
C REGISTER
♦
♦♦
♦I
2
C 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 ADDRE SS
Slave Address Hex
MSB LSB -
1 0 0 0 0 0 0 0 80(h)
♦
♦♦
♦CONTROL REGISTER TABLE
The select address sets each function (Volume, Loudness, Balance, Fader, Tone Control, Input Selector).
The auto increment function cycles the select address as follows.
00H→01H→02H→03H→04H→00H
<Write Mode >
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
00H Amp Gain VOL1
01H VOL2FL (Front Left) VOL2FR (Front Right)
02H VOL2RL (Rear Left) VOL2RR (Rear Right)
03H BCB Tone Bass BCT Tone Treble
04H FLMute FRMute RLMute RRMute Input Selector Loudness
Test *
♦
♦♦
♦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
* Test : Set D0=0 in usually.
(For device check use only)
NJW1191
– 12 –
!INSTRUCTION CODE
a) MAIN VOLUME (VOL1,Amp Gain) SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
00H
Amp Gain VOL1
•Amp Gain : 0dB, +6dB, +12dB, +18dB
•VOL1 : Volume 1 Attenuator setting 0 to –30dB (1dB/Step),-30 to –68dB (2dB/Step),Mute
b) BALANCE, FADER VOLUME (VOL2FL,FR,RL,RR ) SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
01H
VOL2FL VOL2FR
02H
VOL2RL VOL2RR
•VOL2FL,FR,RL,RR : 0,-2,-4,-6,-8,-10,-12,-16,-18,-20,-24,-32,-34,-36,-38,-42 dB
c) TONE SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
03H
BCB TONE BASS BCT TONE TREBLE
•BCB : Boost cut select for Bass control
“0” : Cut
“1” : Boost
•TONE BASS : BASS Level Setting
Cut Level : -14 to 0dB(2dB/Step)
Boost Level : 0 to +14dB(2dB/Step)
•BCT : Boost cut select for Treble control
“0” : Cut
“1” : Boost
•TONE TREBLE : TREBLE Level Setting
Cut Level : -14 to 0dB(2dB/Step)
Boost Level : 0 to +14dB(2dB/Step)
d) INPUT SELECTOR SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
04H
FLMute FRMute RLMute RRMute Input Selector Loudness Test
•FLMute, FRMute, RLMute, RRMute : VOL2FL,FR,RL,RR Mute
•Input Selector: INPUT1 to 4
•Loudness : Loudness ON/OFF
•Test : For device check use only. Set D0 = 0 in usual.
NJW1191
– 13 –
!VOL1(Select A ddress : 00H)
VOL1
Gain(dB) D5 D4 D3 D2 D1 D0
0 1 1 1 1 1 1
-1 1 1 1 1 1 0
-2 1 1 1 1 0 1
-3 1 1 1 1 0 0
-4 1 1 1 0 1 1
-5 1 1 1 0 1 0
-6 1 1 1 0 0 1
-7 1 1 1 0 0 0
-8 1 1 0 1 1 1
-9 1 1 0 1 1 0
-10 1 1 0 1 0 1
-11 1 1 0 1 0 0
-12 1 1 0 0 1 1
-13 1 1 0 0 1 0
-14 1 1 0 0 0 1
-15 1 1 0 0 0 0
-16 1 0 1 1 1 1
-17 1 0 1 1 1 0
-18 1 0 1 1 0 1
-19 1 0 1 1 0 0
-20 1 0 1 0 1 1
-21 1 0 1 0 1 0
-22 1 0 1 0 0 1
-23 1 0 1 0 0 0
-24 1 0 0 1 1 1
-25 1 0 0 1 1 0
-26 1 0 0 1 0 1
-27 1 0 0 1 0 0
-28 1 0 0 0 1 1
-29 1 0 0 0 1 0
-30 1 0 0 0 0 1
-32 1 0 0 0 0 0
-34 0 1 1 1 1 1
-36 0 1 1 1 1 0
-38 0 1 1 1 0 1
-40 0 1 1 1 0 0
-42 0 1 1 0 1 1
-44 0 1 1 0 1 0
-46 0 1 1 0 0 1
-48 0 1 1 0 0 0
-50 0 1 0 1 1 1
-52 0 1 0 1 1 0
-54 0 1 0 1 0 1
-56 0 1 0 1 0 0
-58 0 1 0 0 1 1
-60 0 1 0 0 1 0
-62 0 1 0 0 0 1
-64 0 1 0 0 0 0
-66 0 0 1 1 1 1
-68 0 0 1 1 1 0
Mute 0 0 0 0 0 0
NJW1191
– 14 –
!AMP GAIN (Select Address : 00H)
!VOL2 FL,FR (Select Address : 01H) : Front Channel
VOL2 RL,RR (Select Address : 02H) : Rear Channel
!TONE (Select Address : 03H)
AMP GAIN
Gain(dB) D7 D6
0 0 0
+6 0 1
+12 1 0
+18 1 1
VOL2
Lch D7 D6 D5 D4
Gain(dB) Rch D3 D2 D1 D0
0 1 1 1 1
-2 1 1 1 0
-4 1 1 0 1
-6 1 1 0 0
-8 1 0 1 1
-10 1 0 1 0
-12 1 0 0 1
-16 1 0 0 0
-18 0 1 1 1
-20 0 1 1 0
-24 0 1 0 1
-32 0 1 0 0
-34 0 0 1 1
-36 0 0 1 0
-38 0 0 0 1
-42 0 0 0 0
BCB
D7
BCT
Cut/Boost
Select D3
Cut 0
Boost 1
TONE BASS
D6 D5 D4
Cut Boost TONE TREBLE
Gain(dB) Gain(dB) D2 D1 D0
-14 14 1 1 1
-12 12 1 1 0
-10 10 1 0 1
-8 8 1 0 0
-6 6 0 1 1
-4 4 0 1 0
-2 2 0 0 1
0 0 0 0 0
NJW1191
– 15 –
!VOL2 MUTE (Select Address : 04H)
!INPUT SELECTOR (Select Address : 04H)
!LOUDNESS (Select Address : 04H)
!TEST (Select Address : 04H) * FOR DEVICE CHECK USE ONLY.
FL Mute
D7
FR Mute
D6
RL Mute
D5
RR Mute
Mute
Setting D4
Mute 0
Active 1
Input Selector
D3 D2
INPUT 1 0 0
INPUT 2 0 1
INPUT 3 1 0
INPUT 4 1 1
Test
D0
Normal 0
Test Mode 1
Loudness
Loudness
Setting D1
OFF 0
ON 1
NJW1191
– 16 –
! TYPICAL CHARACTERISTICS
Operating Current vs. Ambient Temperature
V+=9V
9
10
11
12
13
14
15
-50 0 50 100 150
Ambient Temperature [°C]
Operating Current [mA]
Operating Current vs. Operating Voltage
0
2
4
6
8
10
12
14
16
051015
Operating Voltage [V]
Operating Current [mA]
25°C
85°C
-40°C
Ref erence Voltage vs. Ambient Temperature
V+=9V
4.3
4.4
4.5
4.6
4.7
-50 0 50 100 150
Ambient Temperature [°C]
Reference Voltage [V]
Maximum Input Voltage vs. Ambient Temperature
Input : L1, Output : FL, VOL1=-20dB, THD=1%
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
-50 0 50 100 150
Ambient Temperature [°C]
Maximum Input Voltage [Vrms
]
PSRR vs. Frequency
V+=9V +1Vrms
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10 100 1000 10000 100000
Frequency [Hz]
PSRR [dB
]
10 100 1K 10K 100K
Maximum Output Voltage vs. Frequency
Input : L1, Output : FL,RL, THD=1%
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
10 100 1000 10000 100000
Frequency [Hz]
Maximum Output Voltage [Vrms
]
-40°C, 25°C
85°C
10 100 1K 10K 100K
NJW1191
– 17 –
! TYPICAL CHARACTERISTICS
Maximum Output Voltage vs. Ambient Temperature
Input : L1, Output : FL, THD=1%
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
-50 0 50 100 150
Ambient Temperature [
℃
]
Maximum Output Voltage [Vrms
]
Maximum Output Voltage vs. Ambiemt TEmperature
Input : L1, Output : FL, f=50kHz, THD=1%
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
-50 0 50 100 150
Ambient Temperature [℃]
Maximum Output Voltage [Vrms
]
Voltage Gain vs. Frequency
Input : L1, Output : FL, BW:10Hz-80kHz
-120
-100
-80
-60
-40
-20
0
20
40
10 100 1000 10000 100000
Frequnency [Hz]
Voltage Gain [dB]
VOL2=0dB
VOL2=-42dB
VOL2=MUTE
10 100 1K 10K 100K
Voltage Gain vs. Frequency
Input : L1, Output : FL, BW:10Hz-80kHz
-120
-100
-80
-60
-40
-20
0
20
40
10 100 1000 10000 100000
Frequnency [Hz]
Voltage GAin [dB]
GAIN=+18dB
VOL1=0dB
VOL1=-68dB
VOL1=MUTE
10 100 1K 10K 100K
Voltage Gain vs. V olume Set Level
Input : L1, Output : FL, Control: VOL1
-80
-70
-60
-50
-40
-30
-20
-10
0
-70-60-50-40-30-20-100
Volume Set Level [dB]
Voltage Gain [dB]
-40°C, 25°C, 85°C
Voltage Gain vs. Volume Set Level
Input : L1, Output : FL, Control: VOL2
-50
-40
-30
-20
-10
0
-50-40-30-20-100
Volume Set Level [dB]
Voltage Gain [dB]
-40°C, 25°C, 85°C
NJW1191
– 18 –
! TYPICAL CHARACTERISTICS
THD+N vs. Input Voltage
Input : L1, Output : FL, BW:10Hz-80kHz
0.001
0.01
0.1
1
10
0.01 0.1 1 10
Input Voltage [V rms]
THD+N [%
]
20Hz
1kHz
20kHz,50kHz
THD+N vs . Input V oltage
Input : L1, Output : FL, BW:400Hz-30kHz
0.001
0.01
0.1
1
10
0.01 0.1 1 10
Input Voltage [Vrms]
THD+N [%
]
VOL1=0dB
VOL1=-6dB
VOL1=-12dB
VOL1=-18dB
THD+N vs. Ambient Temperature
Input : L1, Output : FL, BW:400-30kHz
0.0001
0.001
0.01
0.1
1
10
-50 0 50 100 150
Ambient Temperature [°C]
THD+N [%
]
Vin=1Vrms
Vin=0.5Vrms
Vin=1.5Vrms
THD+N vs. Frequency
Input : L1, Output : FL
0.001
0.01
0.1
1
10 100 1000 10000 100000
Frequency [Hz]
THD+N [%
]
85°C
-40°C, 25°C
10 100 1K 10K 100K
THD+N vs. Input Voltage
Input : L1, Output : FL, BW:400Hz-30kHz
0.001
0.01
0.1
1
10
100
0.01 0.1 1 10
Input Voltage [Vrms]
THD+N [%
]
-40°C
85°C
25°C
Output Noise Voltage vs. Ambient Tempereture
Input : L1, Output : FL, Rg=0Ω, A-w eighted
0
5
10
15
20
25
30
-50 0 50 100 150
Ambient Temperature[℃]
Output Noise Voltage [µVrms]
VOL1=VOL2=0dB
VOL2=MUTE
NJW1191
– 19 –
! TYPICAL CHARACTERISTICS
Cross Talk vs. Ambient Temperature
Input : L1, Output : FL, Rg=0Ω, BW:400Hz-30kHz
20
30
40
50
60
70
80
90
100
110
120
-50 0 50 100 150
Ambient Temperature[
℃
]
Cross Talk [dB
]
Channel Separation vs. Ambient Temperature
Input : L1, Output : FL, Rg=0Ω, BW:400Hz-30kHz
20
30
40
50
60
70
80
90
100
110
120
-50 0 50 100 150
Ambient Temperature [℃]
Channel Separation [dB]
Channel Separation vs. Frequency
Input : R1, Output : FL, Rg=0Ω, BW:10Hz-80kHz
20
30
40
50
60
70
80
90
100
110
120
10 100 1000 10000 100000
frequency [Hz]
Channel Separation [dB]
-40°C, 25°C, 85°C
10 100 1K 10K 100K
Voltage Gain vs. Ambient Temperature (LOUDNESS)
Input : L1, Output : FL, Loudness=ON, V OL1=-24dB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
-50 0 50 100 150
Ambient Temperature [℃]
Voltage Gain [dB]
f =10kHz
f =40Hz
Voltage Gain vs. Frequency (LOUDNESS)
Input : L1, Output : FL, Loudness=ON
-35
-30
-25
-20
-15
-10
-5
0
5
10 100 1000 10000 100000
Frequency [Hz]
Voltage Gain [dB]
VOL1=-30dB
VOL1=0dB VOL1=-10dB
VOL1=-20dB
10 100 1K 10K 100K
Cross Talk vs. Frequency
Input : L2,L3,L4, Output : FL, Rg=0Ω, BW:10Hz-80kHz
20
30
40
50
60
70
80
90
100
110
120
10 100 1000 10000 100000
Frequency [Hz]
Cross Talk [dB
]
-40°C, 25°C, 85°C
NJW1191
– 20 –
! TYPICAL CHARACTERISTICS
!NOTE
Voltage Gain vs. frequency (LOUDNESS)
Input : L1, Output : FL, Loudness=ON, VOL1=-24dB
-25
-20
-15
-10
-5
0
10 100 1000 10000 100000
Frequency [Hz]
Voltage Gain [dB]
-40°C 25°C
85°C
10 100 1K 10K 100K
Voltage Gain vs. Frequency (TONE)
Input : L1, Output : FL
-20
-15
-10
-5
0
5
10
15
20
10 100 1000 10000 100000
Frequency [Hz]
Voltage Gain [dB]
BASS=TREBLE=+14dB
Ta=-40°C, 25°C, 85°C
BASS=TREBLE=-14dB
Ta=-40°C, 25°C, 85°C
BASS=TREBLE=0dB
Ta=-40°C, 25°C, 85°C
10 100 1K 10K 100K
Voltage Gain vs. Frequency (BASS)
Input : L1, Output : FL, Vin=0.1Vrms
-20
-15
-10
-5
0
5
10
15
20
10 100 1000 10000 100000
Frequency [Hz]
Voltage Gain [dB]
BASS=-14dB
BASS=+14dB
BASS=0dB
10 100 1K 10K 100K
Voltage Gain vs. Frequency (TREBLE)
Input : L1, Output : FL, Vin=0.1Vrms
-20
-15
-10
-5
0
5
10
15
20
10 100 1000 10000 100000
Frequency [Hz]
Voltage Gain [dB]
TREBLE=+14dB
TREBLE=-14dB
TREBLE=0dB
10 100 1K 10K 100K
THD+N vs. Volume Set Level
0.001
0.01
0.1
1
10
-80 -60 -40 -20 0
Volume Set Level [dB]
THD+N [%
]
20kHz
1kHz
20Hz
NJW1191
– 21 –
[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.
