LM1868 National Semiconductor, LM1868 Datasheet
LM1868
Manufacturer Part Number
LM1868
Description
Radio System
Manufacturer
National Semiconductor
Datasheet
1.LM1868.pdf
(10 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM1868N
Manufacturer:
NS/国半
Quantity:
20 000
DataSheet4U.com
www.DataSheet4U.com
C 1995 National Semiconductor Corporation
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
Block Diagram
Note See table for coil data
TL H 7909
See NS Package Number N20A
Order Number LM1868N
DataSheet4U.com
Features
Y
Y
Y
Y
Y
reducing amplifier noise in the AM band
characteristics
DC selection of AM FM mode
Regulated supply
Audio amplifier bandwidth decreased in AM mode
AM converter AGC for excellent overload
Low current internal AM detector for low tweet radiation
RRD-B30M115 Printed in U S A
February 1995
TL H 7909 – 1