NJW1194
2-CHANNEL ELECTRONIC VOLUME
WITH INPUT SELECTOR AND TONE CONTROL
s
GENERAL DESCRIPTION
The NJW1194 is a 2-channel electronic volume with4-in 1-out
stereo audio selector and Tone Control. The NJW1194 performs
low noise and low distortion characteristics with resistance ladder
circuit.
All of functions are controlled via three-wired serial bus.
Selectable 4-Chip address is available for using four chips on
same serial bus line.
It’s suitable for two-channel stereo system and or multi-channel
audio system.
s
PACKAGE OUTLINE
NJW1194V
s
FEATURES
q
Operating Voltage
q
3-Wired Serial Control
q
Low output noise
q
Low THD
q
Input Selector(X4)
q
Volume
q
Tone Control
q
Channel Separation
q
Zero Cross Detection
q
Bi-CMOS Technology
q
Package Outline
±
4.5 to
±
7.5V
Chip Address Select Function
-117dBVtyp.
0.0015%typ. (Vin=2Vrms, VOL=0dB)
+31.5 to –95.0dB / 0.5dBstep, MUTE
0to
±
10dB/1dBstep
-120dBtyp.
SSOP32
s
BLOCK DIAGRAM
CLOCK
LATCH
Ach Tone Filter
V+ GND V-
V-
ADR1
ADR0
DATA
In A1
In A2
In A3
In A4
In B1
In B2
In B3
In B4
Bias
Control Logic
Zero Cross Detection
TONE
Out A
TONE
OutB
Bch Tone Filter
Ver.7.1 for web
–1–
NJW1194
s
ABSOLUTE MAXIMUM RATING
(Ta=25°C)
PARAMETER
Power Supply Voltage
Maximum Input Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
SYMBOL
V
+
/V
-
V
IM
P
D
Topr
Tstg
+
-
RATING
+8/-8
V
+
/V
-
1000
NOTE: EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
UNIT
V
V
mW
°C
°C
-40 ~ +85
-40 ~ +125
s
ELECTRICAL CHARACTERISTICS
(Ta=25°C, V /V =±7V, RL=47kΩ, Volume=0dB, TONE=OFF, In:input,Out:output)
PARAMETER
x
Power Supply
SYMBOL
TEST CONDITION
MIN.
±4.5
TYP.
±7.0
12
12
MAX.
±7.5
17
17
UNIT
Operating Voltage
Supply Current 1
Supply Current 2
V
+
/V
-
I
CC
I
EE
No signal
No signal
V
mA
mA
-
-
x
Input/Output Characteristics (Output)
Maximum Output Voltage
Voltage Gain1
Voltage Gain2
Voltage Gain Error1
Voltage Gain Error2
Maximum Attenuation
Mute Level
Cross Talk 1
Cross Talk 2
Channel Separation 1
Channel Separation 2
V
OM
G
V1
G
V2
∆G
V1
∆G
V2
A
TT
Mute
CT1
CT2
CS1
CS2
f=1kHz,THD=1%
VOL=0dB
V
IN
=2Vrms, f=1kHz
VOL=0dB
V
IN
=100mVrms, f=1kHz
VOL=+15dB
V
IN
=2Vrms, f=1kHz
VOL=0dB
f=1kHz, V
IN
=2Vrms
VOL=-60dB
f=1kHz, V
IN
=2Vrms
VOL=-95dB, A-weight
f=1kHz, V
IN
=2Vrms
VOL=Mute, A-weight
f=1kHz, V
IN
=2Vrms,A-weight
VOL=0dB, Rg=0Ω
f=20kHz, V
IN
=2Vrms
VOL=0dB, Rg=0Ω
f=1kHz, V
IN
=2Vrms,A-weight
VOL=0dB, Rg=0Ω
f=20kHz, V
IN
=2Vrms
VOL=0dB, Rg=0Ω
f=1kHz, V
IN
=2Vrms,A-weight
VOL=0dB, Rg=0Ω
TONE=ON
(Bass=Treble=0dB)
f=20kHz, V
IN
=2Vrms
VOL=0dB, Rg=0Ω
TONE=ON
(Bass=Treble=0dB)
3.6
-0.5
+14
-0.5
-1.0
-
-
-
-
-
-
4.2
0
+15
0
0
-95
-120
-120
-100
-120
-100
-
0.5
+16
0.5
1.0
-
-
-
-
-90
-
Vrms
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Channel Separation 3
CS3
-
-110
-90
dB
Channel Separation 4
CS4
-
-90
-
dB
Input Impedance
R
IN
Select Channel Input
Terminal
15
20
-
kΩ
–2–
Ver.7.1 for web
NJW1194
s
ELECTRICAL CHARACTERISTICS
(Ta=25°C, V
+
/V
-
=±7V, RL=47kΩ, Volume=0dB, TONE=OFF, In:input,Out:output)
PARAMETER
SYMBOL
TEST CONDITION
VOL=0dB,
Rg=0Ω, A-weight,
TONE=ON
(Bass=Treble=0dB)
VOL=0dB,
Rg=0Ω, A-weight,
TONE=OFF
f=1kHz,V
IN
=200mVrms,VOL=0dB,
BW=400Hz-30kHz
TONE=ON (Bass=Treble=0dB)
f=10kHz,
V
IN
=200mVrms,VOL=0dB,
BW=400Hz-30kHz
TONE=ON (Bass=Treble=0dB)
f=1kHz, V
IN
=2Vrms,VOL=0dB,
BW=400Hz-30kHz
TONE=ON (Bass=Treble=0dB)
f=10kHz, V
IN
=2Vrms,VOL=0dB,
BW=400Hz-30kHz
TONE=ON (Bass=Treble=0dB)
f=1kHz,
V
IN
=200mVrms,VOL=+15dB,
BW=400Hz-30kHz
TONE=ON (Bass=Treble=0dB)
f=10kHz, V
IN
=200mVrms,
VOL=+15dB, BW=400Hz-30kHz
TONE=ON (Bass=Treble=0dB)
f=1kHz, V
IN
=2Vrms,VOL=-18dB,
BW=400Hz-30kHz
TONE=ON (Bass=Treble=0dB)
f=10kHz, V
IN
=2Vrms,VOL=-18dB,
BW=400Hz-30kHz
TONE=ON (Bass=Treble=0dB)
MIN.
TYP.
MAX.
UNIT
x
Input/Output Characteristics (Output)
Output Noise1
V
NO1
-
-113
(2.2µ)
-117
(1.41µ)
0.002
-100
(10µ)
dBV
(Vrms)
dBV
(Vrms)
%
Output Noise2
V
NO2
-
-
Total Harmonic Distortion 1
THD1
-
-
Total Harmonic Distortion 2
THD2
-
0.002
-
%
Total Harmonic Distortion 3
THD3
-
0.0015
-
%
Total Harmonic Distortion 4
THD4
-
0.005
-
%
Total Harmonic Distortion 5
THD5
-
0.002
-
%
Total Harmonic Distortion 6
THD6
-
0.002
-
%
Total Harmonic Distortion 7
THD7
-
0.002
0.02
%
Total Harmonic Distortion 8
THD8
-
0.002
-
%
Ver.7.1 for web
–3–
NJW1194
s
ELECTRICAL CHARACTERISTICS
(Ta=25°C, V
+
/V
-
=±7V, RL=47kΩ, Volume=0dB, TONE=OFF, In:input,Out:output)
PARAMETER
SYMBOL
TEST CONDITION
V
IN
=100mVrms, f=10kHz
VOL=0dB, TONE=ON,
Treble=0dB
V
IN
=100mVrms, f=10kHz
VOL=0dB, TONE=ON,
Treble=+10dB
V
IN
=100mVrms, f=10kHz
VOL=0dB, TONE=ON,
Treble=-10dB
V
IN
=100mVrms, f=100Hz
VOL=0dB, TONE=ON,
Bass=0dB
V
IN
=100mVrms, f=100Hz
VOL=0dB, TONE=ON,
Bass=+10dB
V
IN
=100mVrms, f=100Hz
VOL=0dB, TONE=ON,
Bass=-10dB
DATA, CLOCK, LATCH, ADR0,
ADR1
DATA, CLOCK, LATCH, ADR0,
ADR1
MIN.
TYP.
MAX.
UNIT
x
Tone Control Characteristics
Treble Voltage Gain 1
G
VTREB1
-2.0
0
2.0
dB
Treble Voltage Gain 2
G
VTREB2
8.0
10.0
12.0
dB
Treble Voltage Gain 3
G
VTREB3
-12.0
-10.0
-8.0
dB
Bass Voltage Gain 1
G
VBASS1
-2.0
0
2.0
dB
Bass Voltage Gain 2
G
VBASS 2
8.0
10.0
12.0
dB
Bass Voltage Gain 3
G
VBASS 3
-12.0
-10.0
-8.0
dB
xLogic
Control Characteristics
High Level Input Voltage
Low Level Input Voltage
V
IH
V
IL
2.5
0
-
-
V
+
V
V
1.5
[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.
–4–
Ver.7.1 for web
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