NJM2149R-TE1 NJR, NJM2149R-TE1 Datasheet - Page 3

• Manufacturer Part Number: NJM2149R-TE1
• Description: Audio Amplifiers Low Voltage
• Manufacturer: NJR

Specifications of NJM2149R-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: 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

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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