NJM2149R-TE2 NJR, NJM2149R-TE2 Datasheet

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NJM2149R-TE2

Manufacturer Part Number
NJM2149R-TE2
Description
Audio Amplifiers Low Voltage
Manufacturer
NJR
Datasheet

Specifications of NJM2149R-TE2

Product
Class-AB
Output Power
250 mW
Available Set Gain
90 dB
Thd Plus Noise
0.5 %
Operating Supply Voltage
3 V, 5 V
Supply Current
2.2 mA
Maximum Power Dissipation
320 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Audio Load Resistance
32 Ohms
Input Bias Current (max)
0.2 uA
Input Signal Type
Differential
Minimum Operating Temperature
- 40 C
Output Signal Type
Differential
Supply Type
Single
Supply Voltage (max)
6 V
Supply Voltage (min)
2 V
Output Type
1-Channel Mono
Package / Case
VSP-8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
GENERAL DESCRPTION
FEATURES
PIN CONFIGURATION
for telephone applications.
No external coupling capacitors are required because
of the differential outputs. The closed loop gain is
adjusted by two external resistors, and a CD pin permit
powering down with muting the input signal.
switching Power Down mode and external high band
noise reduction, compared with NJM2135.
telephone, button telephone, and other speaker
amplifier applications.
The NJM2149 is an audio power amplifier designed
The NJM2149 improves the tern noise reduction in
It is suitable for portable telephone , wireless
Operating Voltage
Operating Current
Supply Current in Power Down Mode
Output Power Exceeds250mW
Gain Range
Load Impedance
Bipolar Technology
Package Outline
+V
+V
-V
REF
LOW VOLTAGE AUDIO POWER AMPLIFIER
IN
IN
4
3
2
50k
50k
145k
GND
A
B
V
6
7
+
20k
20k
+2 - +6V
2.2mA typ., at V
0.1 A typ
V
GVD=0-43dB,Voise Band
R
DIP8,DMP8,SSOP8,VSP8,TVSP8
BIAS
+
L
=6V,R
=8-200
L
=32
8
1
5
CD
V
V
+
OUT
=3V
OUT
1
2
PACKAGE OUTLENE
NJM2149D
NJM2149V
NJM2149RB1
PIN FUNCTION
1.CD
2.+V
3.+V
4.-V
5.V
6.V
7.GND
8.V
OUT
OUT
+
IN
REF
IN
1
2
NJM2149
NJM2149M
NJM2149R
- 1 -

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NJM2149R-TE2 Summary of contents

Page 1

... PACKAGE OUTLENE +2 - +6V + 2.2mA typ =3V 0.1 A typ + V =6V,R =32 L GVD=0-43dB,Voise Band R =8-200 L DIP8,DMP8,SSOP8,VSP8,TVSP8 + V 6 BIAS OUT 20k 20k OUT 7 GND NJM2149 NJM2149D NJM2149M NJM2149V NJM2149R NJM2149RB1 PIN FUNCTION 1.CD 2.+V REF 3.+V IN 4.-V IN 5.V 1 OUT + 6.V 7.GND 8.V 2 OUT - 1 - ...

Page 2

... O Input Bias Current I B Equivalent Resistance R +IN R REF CD Input Voltage H V CDH CD Input Voltage L V CDL CD Input Resistance R CD (note2) NJM2149M,NJM2149V,NJM2149R,NJM2149RB1:Mounted on PC Board CONTROL TERMINAL EXPLANATION CHIP DISABLE CONTROL(CD PIN) PARAMETER CONTROL SIGNAL CD OFF H(= L(=V SYMBOL RATINGS + V +7 (DIP8) (DMP8 (SSOP8) ...

Page 3

APPLICATION CURCUIT Ci Ri INPUT 0 4.7 F note:1.The CD terminal(1pin) should connect High level( 2.0V), when NJM2149 is active. The standby mode, when the CD terminal is Low level( 0.8V). 2.To ...

Page 4

TYPCAL CHARACTERISTICS Operating Current vs. Operating Voltage + (V =V ,Ta= 3.5 3 2.5 2 1 [V] CD Sink Current vs. CD Voltage + (V =6V,Ta=25 C) 200 ...

Page 5

TYPCAL CHARACTERISTICS Total Harmonic Distortion vs. Output Power (f=1kHz,G =34dB,Ta= V+=3V,RL=8OHM V+=3V,RL=16OHM 8 V+=6V,RL=16OHM V+=6V,RL=32OHM 0.1 0.2 Po[W] Total Harmonic Distortion vs. Output Power (f=1.3kHz,G =12dB,Ta= V+=3V,RL=8OHM V+=3V,RL=16OHM 8 ...

Page 6

TYPCAL CHARACTERISTICS Supply Voltage Rejection Ratio vs. Frequency + (V =6V,G =34dB,C2=0 F,Ta= 200 1000 f[Hz] Supply Voltage Rejection Ratio vs. Frequency + (V =6V,G =34dB,C2=5 F,Ta= ...

Page 7

TYPCAL CHARACTERISTICS Output Offset Voltage vs. Temperature + (V =6V -10 -100 -50 0 Ta[ MEMO 50 100 150 o C] NJM2149 Output Power vs. Temperature + (V =6V) 500 400 300 200 100 0 -40 ...

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