NJM2552

NJM2552 100MHz INPUT MIXER AND 450kHz FM/AM IF DEMODULATOR IC  GENERAL DESCRIPTION  PACKAGE OUTLINE The NJM2552 is a FM IF demodulator IC with 450kHz (standard) IF input, which operates from 2.2V to 9.0V supply. It includes an oscillator, mixer, limiting amplifier, FM/AM detectors, and RSSI circuit. The NJM2552 is suitable for FM /AM receivers for data / voice radio systems.  FEATURES  Wide Operating Voltage  Low Operating Current NJM2552V 2.2V to 9.0V FM: 2.5mA at V+ =2.7V, AM SW =LOW AM and FM: 5mA at V+ =2.7V, AM SW =HIGH  Maximum Mixer Input Frequency 100MHz (reference value)  IF Frequency 450kHz (standard)  AM/FM detector circuits selectable AM SW= HIGH Simultaneous operation of AM/FM sections AM SW= LOW FM section only  Built-in AGC circuit in AM section  Wide Range RSSI (Received Signal Strength Indication)  Bipolar Technology  Package Outline SSOP20  BLOCK DIAGRAM MIX AM AGC RF AGC RSSI AM AM AF AMP AMP FM AF IN V+ IN OUT OUT SW OUT OUT IN OUT 20 19 18 17 16 15 14 13 12 11 AM DET -A AMP M IXER RSSI OSC AMP AGC +- AM AMP + FM AMP - FM DET 1 OSC (B) 2 OSC (E) 3 M IX OUT 4 GND 5 AM IF IN 678 AM FM IF IN FM DEC DEC 9 FM IF OUT 10 QUAD IN Ver.2018-03-23 -1- NJM2552  ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Supply Voltage V+ Power Dissipation Pd Operating Temperature Topr Storage Temperature Tstg RATINGS 12 300 -40 to +85 - 50 to +125 (Ta=25°C) UNIT V mW °C °C  RECOMMENDED OPERATING CONDITION PARAMETE...