NJM2113
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Ver.2014-03-17
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 capac itors to the
speaker are not required,as it has differ ential speaker outputs.
The closed loop gain is set with two external resistors.
A CD pin permit powering down with muting the input signal.
■ FEATURES
● Wide Operating V oltage ( 2~16V )
● Low Operating Current ( 2.7mA T yp. )
● CD Input to Power Down the IC with Mute
● Low Power-Down Operating Current ( 72μA Typ. )
● Output Power Exceeds 250mW ( V+=6V,RL=32Ω )
● Gain Adjustable (GVD=0~43dB,Voice Band )
● Package Outline DMP8, DI P8, SOP8 JEDEC 150mil
SIP8, SSOP8, VSP8
● Bipolar Technology
■ RECOMMENDE D OPER ATING CONDITIONS
● Load Impedance RL 8~200Ω
● Differential Gain GVD 0~43dB ( 5kHz bandwidth )
● Input V oltage at CD VCD 0~V+ Vdc
■ PIN CONFIGURATION
■ BLOCK DIA GRA M
NJM2113M
NJM2113E
NJM2113V
NJM2113R
PIN FUNCTION
1. CD
2. VREF
3. +VIN
4. –VIN
5. VOUT1
6. V+
7. GND
8. VOUT2
NJM2113L
NJM2113V
( SSOP8 )
NJM2113D
( DIP8 )
NJM2113E
( SOP8 )
NJM2113M
( DMP8 )
NJM2113L
( SIP8 )
NJM2113R
( VSP8 )
NJM2113
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Ver.2014-03-17
■ ABSOLUTE MAXIMUM RATINGS ( Ta=25˚C )
PARAMETER SYMBOL RATINGS UNIT
Supply V oltage V
+
+18 V
Output Peak Current I
OP
± 250 mA
Input V oltage Range VIN ( 1~4pi n )-0.3 to V
+
+0.3
( 5,8pin )-0.3 to V++0.3
( when Power-Down )
V
Power Dissip ation PD
( DIP8 ) 500 ( note1 )
( SIP8 ) 800 ( note1 )
( DMP8 ) 500 ( note2 )
( SSOP8 ) 360 ( note2 )
( VSP8 ) 320 ( note1 )
( SOP8 ) 300 ( note1 )
mW
Operating Temperature Range
T
opr
-20~+75 ˚C
Storage Temperature Range T
stg
-40~+125 ˚C
( note1 ) Device itself.
( note2 ) Mounted on PC Board.
■ ELECTRICAL CHARACTERISTICS ( V+=6V,Ta=25˚C,unless otherwise specified )
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Operating Current I
CC
1 V
+
=3.0V,R
L
=∞,1pin=0.8V - 2.7 4.0 mA
( no signal ) I
CC
2 V
+
=16.0V,R
L
=∞,1pin=0.8V - 3.4 5.0 mA
I
CCD
V
+
=3.0V,R
L
=∞,1pin=2.0V - 72 100 μA
Open Loop Gain A
V
1 Amplifier#A,f<100Hz 77 83 - dB
Closed Loop Gain A
V
2 Amplifier#B,f=1kHz,R
L
=32Ω -0.35 0 +0.35 dB
Output Power PO1 V
+
=3.0V,R
L
=16Ω,THD≤10 55 - - mW
( note3 ) PO2 V
+
=6.0V,R
L
=32Ω,THD≤10 250 - - mW
PO3 V
+
=12.0V,R
L
=100Ω,THD≤10 ( note4 )
400 - - mW
Total Harmonic Distortion THD1 V
+
=6V,RL=32Ω,PO=125mW,GVD=34dB - 0.5 1.0
( f=1kHz ) THD2 V
+
≥3V,RL=8Ω,PO=20mW,GVD=12dB - 0.5 -
THD3 V
+
≥12V,RL=32Ω,PO=200mW,GVD=34dB
- 0.6 -
Power Supply Rejection Ratio PSRR1 C1=∞,C2=0.01μF,DC 50 - - dB
( V
+
=6.0V,ΔV
+
=3.0V ) PSRR2 C1=0.1μF,C2=0,f=1kHz - 12 - dB
PSRR3 C1=1.0μF,C2=5.0μF,f=1kHz - 52 - dB
Mute Attenuation MAT f=1kHz~20kHz,1pin=2.0V - 70 - dB
Output V oltage V
O
1 V
+
=3.0V,R
L
=16Ω 1.00 1.18 1.25 V
( R
f
=75kΩ,DC ) V
O
2 V
+
=6.0V - 2.68 - V
V
O
3 V
+
=12.0V - 5.71 - V
Output High Level V
OH
I
OUT
=-75mA,V
+
=2.0~16.0V - V
+
-1.1 - V
Output Low Level V
OL
I
OUT
=75mA,V
+
=2.0~16.0V - 0.21 - V
Output DC Offset ΔV
O
R
f
=75kΩ,R
L
=32Ω,5pin~8pin -30 0 +30 mV
Input Bias Current I
B
4pin - -30 -200 nA
Equivalent Resistance R
+IN
3pin 100 150 220 kΩ
R
REF
2pin 18 25 40 kΩ
CD Input V oltage H V
CDH
1pin 2.0 - V
+
V
CD Input V oltage L V
CDL
1pin 0.0 - 0.8 V
CD Input Resistance R
CD
V
CD
=16.0V , 1pin 50 75 175 kΩ
( note3 ) NJM21 13M,NJM21 13V : At on PC Board
( note4 ) Not specified for NJM21 13V ,NJM21 13R
NJM2113
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Ver.2014-03-17
INPUT
Power-Down Control
■ A PPLICATION CIRCUIT
( 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 NJM21 13
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 NJM21 13 oscillates by
Condition of PCB layout,stray capacitor and speaker wire length.
NJM2113
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Ver.2014-03-17
■ TYPICAL CHARACTERISTICS
NJM2113
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Ver.2014-03-17
■ TYPICAL CHARACTERISTICS
NJM2113
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Ver.2014-03-17
■ TYPICAL CHARACTERISTICS
[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.