GAIN TRIM
VB=1.3 VDC
4.7
4.7
500k
4
7
LD502
4
6
1
LC549
VOLTAGE
REGULATOR
2
1
V
4.7
C =10k
0.1
5
0.1
RS 3.9k
2
R =400
L
TYP
AMP
3
0.1
8
FULL WAVE
RECTIFIER
6
5
8
3
7
NC
0.1-1.0
0.047
All resistors in ohms, all capacitors in microfarads unless otherwise stated
Fig. 2 LD502/LC549Hearing Instrument Application
GAIN TRIM
VB=1.3 VDC
500k
8
4
7
4
LE507
LD502
BK1606
Z=1k
1
7
VOLTAGE
REGULATOR
2
1
25k
4.7
13.5k
2
18k
0.1
0.1
RS 3.9k
33k
2k
AMP
3
5
0.1
0.1
FULL WAVE
RECTIFIER
VC
10k
6
5
6
8
3
0.47
R =33
E
All resistors in ohms, all capacitors in microfarads unless otherwise stated
Fig. 3 LD502/LE507 Hearing Instrument Application
500 - 43 - 18
3
GENNUM [ GENNUM CORPORATION ]
