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LM1868 fiches techniques PDF

National Semiconductor - Radio System

Numéro de référence LM1868
Description Radio System
Fabricant National Semiconductor 
Logo National Semiconductor 





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LM1868 fiche technique
www.DataSheet4U.com
February 1995
LM1868 AM FM Radio System
General Description
The combination of the LM1868 and an FM tuner will pro-
vide all the necessary functions for a 0 5 watt AM FM radio
Included in the LM 1868 are the audio power amplifier FM
IF and detector and the AM converter IF and detector
The device is suitable for both line operated and 9V battery
applications
Features
Y DC selection of AM FM mode
Y Regulated supply
Y Audio amplifier bandwidth decreased in AM mode
reducing amplifier noise in the AM band
Y AM converter AGC for excellent overload
characteristics
Y Low current internal AM detector for low tweet radiation
Block Diagram
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DataShee
Note See table for coil data
C1995 National Semiconductor Corporation TL H 7909
Order Number LM1868N
See NS Package Number N20A
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TL H 7909 – 1
RRD-B30M115 Printed in U S A

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