NJM2149V-TE1 NJR, NJM2149V-TE1 Datasheet - Page 3
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NJM2149V-TE1
Manufacturer Part Number
NJM2149V-TE1
Description
Audio Amplifiers Low Voltage
Manufacturer
NJR
Datasheet
1.NJM2149M.pdf
(7 pages)
Specifications of NJM2149V-TE1
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
360 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
SSOP-8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
note:1.The CD terminal(1pin) should connect High level( 2.0V), when NJM2149 is active.
APPLICATION CURCUIT
2.To add the C1 and C2 capacitor, the power-supply-rejection-ratio will be improved.
3.The power-up time depend on the C1 and C2 capacitor.
4.The input current of CD terminal is as shown below figure.
5.No connect oscillation-protect RC required.
When C1 is large value, C2 will be unnecessary.
The standby mode, when the CD terminal is Low level( 0.8V).
To connect oscillation-protect RC, if the NJM2149 oscillate with PC board/stray capacitor/long speaker wire
and others condition.
INPUT
1.0 F
C
1
0.1 F 3.0k
Ci
Ri
4.7 F
C
2
2
4
3
Rf 75k
145k
50k
50k
V
+
=+6V
A
B
6
7
BIAS
10 F
1pin
1
5
8
72k
80k
CD(POWER DOWN)
SPEAKER
32
NJM2149
V
GND
+
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