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LS505 Datasheet

  • LS505

  • Gennum Corporation [High Gain Class A Amplifier with Peak C...

  • GENNUM

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High Gain Class A Amplifier
with Peak Clipping
LS505 DATA SHEET
FEATURES
鈥?/div>
72 dB typical gain
鈥?/div>
0.2 to 2.0 mA of transducer current adjustment
鈥?/div>
43 dB range of feedback volume control
鈥?/div>
1.0 to 1.6 V supply operating range
鈥?/div>
Schottky diodes provide symmetrical peak clipping
鈥?/div>
requires only 4 external parts for operation
STANDARD PACKAGING
鈥?8 pin MINIpac
鈥?8 pin MICROpac
鈥?8 pin PLID
廬
鈥?8 pin SLT
鈥?Chip (56 x 55 mils)
DESCRIPTION
The LS505 is a low voltage, monolithic integrated circuit
amplifier comprised of an operational amplifier driving a
single transistor Class A output stage with open collector.
Also included are a pair of complementary Schottky diodes
which provide the capability for symmetrical peak clipping in
a feedback configuration.
An internal negative feedback loop ensures a stable operating
point for the output stage over the designed operating voltage.
This also permits trimming of the output current with the use
of a single external resistor.
The input stage and microphone are biased by an internal
2.2 k鈩?decoupling resistor to increase battery line signal
rejection.
V
MIC
8
VB
4
MPO
1
2.2k
I/P
+
-
100
R
VC
5
7
GND
33k
O/P
3
6
200
2
R
E
BLOCK DIAGRAM
All resistors in ohms, all capacitors in farads unless otherwise stated.
Revision Date: January 1996
Document No. 500 - 20 - 11
GENNUM CORPORATION P.O. Box 489, Stn A, Burlington, Ontario, Canada L7R 3Y3
Japan Branch: A-302, M i yamae Vi l l age, 2鈥?0鈥?2 M i yamae, Suginami鈥搆u Tokyo 168, Japan
tel. (905) 632-2996 fax: (905) 632-5946
tel. (03) 3334-7700
fax (03) 3247-8839

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