GT560 Просмотр технического описания (PDF) - Gennum -> Semtech
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GT560 Datasheet PDF : 5 Pages
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510 - 64 - 03
VB=1.3VDC
S2
S1
61
8
GT560
3
1.2M
7
10
1.0
5
2
+
6.8
RS 3.9k
0.1
4
3 1/2
51
LP508
2
6
2
8
LC549
0.1
5
1
74
6.8
6.8
0.068
RCVR
All resistors in ohms, all capacitors in microfarads unless otherwise stated
S1 can be a momentary SPST switch or a pair of contacts.
On initial power-up (insertion of the battery) the gain will be at a random setting
Fig. 2 Typical Hearing Aid Circuit
VB=1.3VDC
S3
S1 S2
+
1.0
61 8
9
7
+
10
0.1
3
GT560
5
2
1.2M
4
1/3 5
LC508
0.1
2
3.9k
1/3
3 LC508 10
0.1
RS 3.9k
22k
RCVR
6
9 1/3
7
LC508
8
1
RE
All resistors in ohms, all capacitors in microfarads unless otherwise stated
S1, S2 are momentary switches or contacts
Closing S1 increases gain
Closing S2 decreases gain
Fig. 3 Typical Hearing Aid Application
4
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