Datasheet

17
LT1677
1677fa
TYPICAL APPLICATIO S
U
R2
80k
R4
8k
7Hz POLE FOR SERVO
PANASONIC
ELECTRET
CONDENSER
MICROPHONE
WM-61
[phone]
C4
1µF
TO
HEADPHONES
–
+
LT1677
2
3
4
7
6
1.5V
–1.5V
–
+
LT1677
2
3
4
7
6
1.5V
1.5V
2N3906
–1.5V
–1.5V
1677 TA05
C2
100pF
20kHz
ROLL OFF
R3
1M
R1
1M
–
+
LT1677
2
3
4
7
6
1.5V
1.5V
–1.5V
C3
0.022µF
R5
2k
C1
10pF
2N3906
16kHz
ROLL OFF
3V Super Electret Microphone Amplifier with DC Servo
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