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Número de pieza | TEA7530 | |
Descripción | MONITOR AMPLIFIER | |
Fabricantes | ST Microelectronics | |
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No Preview Available ! LOW VOLTAGE
POWER: 100mW AT 5V
ANTIDISTORTION SYSTEM FOR LOW CUR-
RENT LINES
DESCRIPTION
This 8 pins IC is designed for monitor telephone
set and provides:
a) Signal amplification for monitoring
b) Antidistortion by automatic gain adaptation.
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Top Temperature Range
VLS Supply Voltage
ILS Supply Current for T > 300ms
for T ≤ 300ms
BLOCK DIAGRAM
TEA7530
MONITOR AMPLIFIER
PRELIMINARY DATA
MINIDIP
SO-8
ORDERING NUMBERS:
TEA7530DP
TEA7530FP
Value
Minidip
SO
-20 to +70 -20 to +70
66
90 75
150 120
Unit
°C
V
mA
mA
June 1993
1/11
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
1 page TEA7530
CIRCUIT DESCRIPTION
TEA7530 is a 8 pin DIP integrated circuit provid-
ing the following facilities:
♦ Loudspeaker amplifier
♦ Antidistortion feed-back system (limited line
current compensation)
1.1. LOUDSPEAKER AMPLIFIER
The amplifier is divided into 2 main sections.
- Automatic Gain Control (AGC)
- Push-pull amplifier (bridge structure)
Figure 9
a) The AGC section is used for the antidistortion
system.
♦When used in a telephone set to avoid larsen
effect the AGC automatically decreases loud-
speaker amplifier gain.
♦When the required output level exceeds the
capabilities of the available current, the AGC
decreases the loudspeaker amplifier gain to
avoids distortion.
b) The output amplifier uses a double push-pull
configuration (H bridge) to get maximum dynamic
range under limited supply conditions.
Figure 10
5/11
5 Page TEA7530
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications men-
tioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without ex-
press written approval of SGS-THOMSON Microelectronics.
© 1994 SGS-THOMSON Microelectronics - All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands
Singapore - Spain - Sweden - Switzerland - Taiwan - Thaliand - United Kingdom - U.S.A.
11/11
11 Page |
Páginas | Total 11 Páginas | |
PDF Descargar | [ Datasheet TEA7530.PDF ] |
Número de pieza | Descripción | Fabricantes |
TEA7530 | MONITOR AMPLIFIER | ST Microelectronics |
TEA7530DP | MONITOR AMPLIFIER | ST Microelectronics |
TEA7530FP | MONITOR AMPLIFIER | ST Microelectronics |
TEA7532 | MONITOR AMPLIFIER | ST Microelectronics |
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