LM1868 datasheet(1/10 Pages) NSC

Part #	LM1868

Description	Radio System

PDF	10 Pages

Scroll/Zoom	100%

Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

Logo

1 / 10 page

TLH7909

February 1995

LM1868 AMFM Radio System

General Description

The combination of the LM1868 and an FM tuner will pro-

vide all the necessary functions for a 05 watt AMFM 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 AMFM 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

TLH7909 – 1

Order Number LM1868N

See NS Package Number N20A

Note

See table for coil data

C1995 National Semiconductor Corporation

RRD-B30M115Printed in U S A

Similar Part No. - LM1868

Manufacturer	Part #	Datasheet	Description
National Semiconductor ...	LM1863	268Kb / 14P	AM Radio System for Electronically Tuned Radios
	LM1863M	268Kb / 14P	AM Radio System for Electronically Tuned Radios
	LM1865	309Kb / 16P	Advanced FM IF System
	LM1865M	309Kb / 16P	Advanced FM IF System
	LM1865N	309Kb / 16P	Advanced FM IF System

Manufacturer	Part #	Datasheet	Description
Hitachi Semiconductor	HA12181FP	147Kb / 21P	AM Radio Noise Reduction System
Silan Microelectronics ...	SC6579	279Kb / 9P	RADIO DATA SYSTEM (RDS) DEMODULATOR
National Semiconductor ...	LM3820	118Kb / 4P	AM RADIO SYSTEM
List of Unclassifed Man...	ULN2204A	641Kb / 8P	AM/FM RADIO SYSTEM
National Semiconductor ...	LM3820	132Kb / 6P	AM Radio System
List of Unclassifed Man...	DSA321SD	156Kb / 1P	GPS / Industrial Radio system
Renesas Technology Corp	HA12181FP	302Kb / 20P	AM Radio Noise Reduction System
rfsolutions.ltd	200-433FR	396Kb / 11P	Modular Radio Telemetry System
Harris Corporation	ANVRC-103	1Mb / 2P	MULTIBAND, MULTIMISSION VEHICULAR RADIO SYSTEM
rfsolutions.ltd	PRO-LORAT1-8S10	3Mb / 8P	Professional LoRa Telemetry Radio System