5
500 - 15 - 09
46
44
42
40
VCR (dB)
10
100
1k
10k
g
m
(mV)
6
4
2
0
10
100
1k
10k
R
E
(
)
R
E
(
)
Fig. 11 Transductance vs Emitter Resistor
Fig. 10 Volume Control Range vs Emitter Resistor
REVISION NOTES:
Chip information removed.
Gennum Corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement.
Copyright March 1976 Gennum Corporation.
All rights reserved. Printed in Canada.
All resistors in ohms, all capacitors in microfarads unless otherwise stated
Fig. 12 LC505 Typical Hearing Aid Application
All resistors in ohms, all capacitors in microfarads unless otherwise stated
Fig. 13 LD505 Typical Hearing Aid Application
33
V
cc
2.2 k
0.33
1 k
V
B
10
1
2
=1.35
+
100 k
3
4
5
6
LC505
V
cc
0.333
1k
V
B
10
2
3
=1.35
+
100k
8
5
6
7
33
10
+
4
10
+
10k
MAXIMUM
OUTPUT
CONTROL
1
LD505
DOCUMENT
IDENTIFICATION
PRODUCT PROPOSAL
This data has been compiled for market investigation purposes
only, and does not constitute an offer for sale.
ADVANCE INFORMATION NOTE
This product is in development phase and specifications are
subject to change without notice. Gennum reserves the right to
remove the product at any time. Listing the product does not
constitute an offer for sale.
PRELIMINARY DATA SHEET
The product is in a preproduction phase and specifications are
subject to change without notice.
DATA SHEET
The product is in production. Gennum reserves the right to make
changes at any time to improve reliability, function or design, in
order to provide the best product possible.