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NJM2113
LOW VOLTAGE AUDIO POWER AMPLIFIER
GENERAL DESCRIPTION
PACKAGE OUTLINE
The NJM2113 is an audio power amplifier designed for telephone
application, such as in speakerphones. Coupling capacitors to the
speaker are not required,as it has differential speaker outputs.
The closed loop gain is set with two external resistors.
A CD pin permit powering down with muting the input signal.
NJM2113D
NJM2113M
FEATURES
( DIP8 )
( DMP8 )
Wide Operating Voltage
Low Operating Current
( 2~16V )
( 2.7mA Typ. )
CD Input to Power Down the IC with Mute
Low Power-Down Operating Current ( 72μA Typ. )
NJM2113E
Output Power Exceeds 250mW ( V+=6V,RL=32Ω )
( SOP8 )
Gain Adjustable
(GVD=0~43dB,Voice Band )
Package Outline
DMP8, DIP8, SOP8 JEDEC 150mil
NJM2113V
( SSOP8 )
SIP8, SSOP8, VSP8
Bipolar Technology
RECOMMENDED OPERATING CONDITIONS
Load Impedance
RL 8~200Ω
NJM2113R
( VSP8 )
Differential Gain
GVD 0~43dB ( 5kHz bandwidth )
Input Voltage at CD
VCD 0~V+ Vdc
NJM2113L
( SIP8 )
PIN CONFIGURATION
NJM2113D
NJM2113M
NJM2113E
NJM2113V
NJM2113R
BLOCK DIAGRAM
NJM2113L
PIN FUNCTION
1. CD
2. VREF
3. +VIN
4. VIN
5. VOUT1
6. V+
7. GND
8. VOUT2
Ver.2014-03-17
-1-

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NJM2113
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Output Peak Current
Input Voltage Range
SYMBOL
V+
IOP
VIN
Power Dissipation
PD
Operating Temperature Range
Storage Temperature Range
( note1 ) Device itself.
( note2 ) Mounted on PC Board.
Topr
Tstg
( Ta=25˚C )
RATINGS
UNIT
+18
± 250
( 1~4pin )-0.3 to V++0.3
( 5,8pin )-0.3 to V++0.3
( when Power-Down )
V
mA
V
( DIP8 ) 500
( SIP8 ) 800
( DMP8 ) 500
( SSOP8 ) 360
( VSP8 ) 320
( SOP8 ) 300
-20~+75
-40~+125
( note1 )
( note1 )
( note2 )
( note2 )
( note1 )
( note1 )
mW
˚C
˚C
ELECTRICAL CHARACTERISTICS
PARAMETER
Operating Current
( no signal )
Open Loop Gain
Closed Loop Gain
Output Power
( note3 )
Total Harmonic Distortion
( f=1kHz )
Power Supply Rejection Ratio
( V+=6.0V,ΔV+=3.0V )
Mute Attenuation
Output Voltage
( Rf=75kΩ,DC )
Output High Level
Output Low Level
Output DC Offset
Input Bias Current
Equivalent Resistance
CD Input Voltage H
CD Input Voltage L
CD Input Resistance
SYMBOL
ICC1
ICC2
ICCD
AV1
AV2
PO1
PO2
PO3
THD1
THD2
THD3
PSRR1
PSRR2
PSRR3
MAT
VO1
VO2
VO3
VOH
VOL
ΔVO
IB
R+IN
RREF
VCDH
VCDL
RCD
( note3 ) NJM2113M,NJM2113V : At on PC Board
( note4 ) Not specified for NJM2113V,NJM2113R
( V+=6V,Ta=25˚C,unless otherwise specified )
TEST CONDITION
V+=3.0V,RL=,1pin=0.8V
V+=16.0V,RL=,1pin=0.8V
V+=3.0V,RL=,1pin=2.0V
Amplifier#A,f<100Hz
Amplifier#B,f=1kHz,RL=32Ω
V+=3.0V,RL=16Ω,THD10
V+=6.0V,RL=32Ω,THD10
V+=12.0V,RL=100Ω,THD10( note4 )
V+=6V,RL=32Ω,PO=125mW,GVD=34dB
V+3V,RL=8Ω,PO=20mW,GVD=12dB
V+12V,RL=32Ω,PO=200mW,GVD=34dB
C1=,C2=0.01μF,DC
C1=0.1μF,C2=0,f=1kHz
C1=1.0μF,C2=5.0μF,f=1kHz
f=1kHz~20kHz,1pin=2.0V
V+=3.0V,RL=16Ω
V+=6.0V
V+=12.0V
IOUT=-75mA,V+=2.0~16.0V
IOUT=75mA,V+=2.0~16.0V
Rf=75kΩ,RL=32Ω,5pin~8pin
4pin
3pin
2pin
1pin
1pin
VCD=16.0V,1pin
MIN.
-
-
-
77
-0.35
55
250
400
-
-
-
50
-
-
-
1.00
-
-
-
-
-30
-
100
18
2.0
0.0
50
TYP.
2.7
3.4
72
83
0
-
-
-
0.5
0.5
0.6
-
12
52
70
1.18
2.68
5.71
V+-1.1
0.21
0
-30
150
25
-
-
75
MAX.
4.0
5.0
100
-
+0.35
-
-
-
1.0
-
-
-
-
-
-
1.25
-
-
-
-
+30
-200
220
40
V+
0.8
175
UNIT
mA
mA
μA
dB
dB
mW
mW
mW
dB
dB
dB
dB
V
V
V
V
V
mV
nA
kΩ
kΩ
V
V
kΩ
-2-
Ver.2014-03-17

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APPLICATION CIRCUIT
INPUT
NJM2113
Power-Down Control
( note )
1. The NJM2113 is active mode during the CD terminal is Low level ( <0.8V ) and it
is stand-by mode during the CD terminal is High level ( >2.0V )
2. C1 and C2 improve power supply rejection ratio.
In case of C1 is enough large,C2 is unnecessary.
3. Please note that the C1 and C2 make slow power rise up to the NJM2113
regardless the external power supply condition.
4. Input current flow on the internal resistor shown in the equivalent circuit of CD
terminal.
5. No snubber resistor and capacitor are required normally.
But the snubber resistor and capacitor are required if the NJM2113 oscillates by
Condition of PCB layout,stray capacitor and speaker wire length.
Ver.2014-03-17
-3-

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NJM2113
TYPICAL CHARACTERISTICS
-4-
Ver.2014-03-17

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TYPICAL CHARACTERISTICS
NJM2113
Ver.2014-03-17
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