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PDF GS3019 Data sheet ( Hoja de datos )

Número de pieza GS3019
Descripción Hybrid
Fabricantes Gennum Corporation 
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GS3019 Hybrid
with LS509 Amplifier
GS3019 - HYB DATA SHEET
FEATURES
• Gennum’s LS509 3 stage amplifier
• independent preamp can be used as telecoil
preamplifier
• four “must use” capacitors mounted on hybrid
• choice of 5 settings for optimal transducer
current
• easy assembly and high reliability
STANDARD PACKAGING
This hybrid is very similar to Gennum's 3010 with the
exception that capacitors C2 and C3 on the GS3019 have
been increased in value to extend the frequency response
of the system. C2 and the output impedance of the
microphone form a high pass filter with a corner frequency
of approximately 180 Hz. The hybrid allows for easy
adjustment of this corner frequency via the addition of
components to its many additional solder pads. Likewise,
R3 and C3 form a high pass filter with a corner frequency
of 130 Hz. Altering this frequency is easily accomplished
by adding additional capacitance between pads 12 and 2
on the hybrid.
• Hybrid Typical Dimensions
0.276 in x 0.101 in x 0.094 in
(7.01 mm x 2.57 mm x 2.39 mm)
DESCRIPTION
The hybrid consists of Gennum's LS509 class A amplifier,
four capacitors, and two selectable bias resistors. This
hybrid is very similar to Gennum's 3010 with the exception
that capacitors C2 and C3 on the GS3019 have been
increased in value to extend the frequency response of
the system.
Stage C of the LS509 is a class A current drive output. There
is a fixed reference voltage of typically 29 mV at pin 2 of the
chip (pad 5 of the hybrid). The current that flows in the
receiver is the ratio of this 29 mV reference voltage to the
resistance seen from pin 2 to ground. R1 and R2 have been
included on the GS3019 to allow for easy adjustment of the
current for the most commonly used receivers.
The system also has the capability of MPO (Maximum Power
Output) control. This is provided by the Schottky diodes on
the LS509 die. To make use of the diodes in the system, a
potentiometer must be added from pads 7 to 9 on the hybrid.
VB
8
VCC
8
VMIC 15
C1
7
4k
4µ7
GS3019
C4
9 0µ1
7 MPO
C2
IN 16
220n
-A
6
21k
-B -C
10
9 OUT
LS509 - DIE 5
4
125 RE
31
2
MGND 1
R1 R2
58 98
R3 C3
5k6 220n
14
3 12 2 13
4
A IN
A OUT A OUTR B INC B IN
B OUT
All resistors in ohms, all capacitors in farads unless otherwise stated.
6 17 11 18 10 5
GND GND1 R1 GND2 R2 R3
Revision Date: May 1998
FUNCTIONAL BLOCK DIAGRAM
Document No. 521 - 04 - 02
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. +1 (905) 632-2996
Web Site: www.gennum.com E-mail: [email protected]

1 page




GS3019 pdf
0.276
(7.01)
GS30190.101
(2.57)
XXXXXX
0.104 MAX
(2.64)
1
23
456
16 17 18
14 13
12 11 10
15
Dimensions are in inches. Dimensions in parenthesis are in millimetres,
converted from inches and include minor round off errors.
1.0000 inches = 25.400 mm.
Dimensions ± 0.005 (± 0.13) unless otherwise stated.
Pad numbers for illustration purposes only.
Smallest pad 0.023 x 0.013 (0.58 x 0.33).
Largest pad 0.036 x 0.027 (0.92 x 0.69).
XXXXXX - work order number.
This hybrid is designed for point to point manual soldering.
Fig. 7 Hybrid Layout & Dimensions
7
8
9
DOCUMENT IDENTIFICATION: 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.
REVISION NOTES:
Updated to Data sheet
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 1994 Gennum Corporation. All rights reserved.
Printed in Canada.
5 521 - 04 - 02

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