LM3820 Datasheet | National Semiconductor

Description The LM3820 is a 3-stage AM radio IC consisting of an RF amplifier oscillator mixer IF amplifier AGC detector and zener regulator The device was originally designed for use in slug-tuned auto radio applications but is also suitable for capacitortuned portable radios The LM3820 is an improved replacement for the LM1820 Features Y Input protection diodes Y Good control on sensitivity Y Improved S N and tweet Y Versatile building-block approach Y Gain-controlled RF stage Y Cascode IF amplifier Y Regulated supply Y Pin patible with LM1820 Connection Diagram Dual-In-Line Package Circuit Schematic Order Number LM3820N See NS Package Number N14A TL H 7967 - 1 C1995 National Semiconductor Corporation TL H 7967 TL H 7967 - 2 RRD-B30M115 Printed in U S A Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Power Dissipation (Note 1) 1200 m W Supply Voltage 16V Current into Supply Terminal (Pin 3) Operating Temperature Range Storage Temperature Range Lead Temperature (Soldering 10 sec ) 35 m A b25 C to a85 C b65 C to a150 C 260 C Electrical Characteristics (Figure 1 TA e 25 C VS e 6V unless noted) Symbol Parameter Conditions Min Typ Max Units Supply Current No RF Input 24 m A Internal Zener...