NJM14570 WIDE BAND FM IF DEMODULATOR GENERAL DESCRIPTION PACKAGE OUTLINE The NJM14570 is a wide band IF IC with a maximum IF input frequency of 15 MHz. It includes an IF Amplifier, Quadrature Detector and RSSI. NJM14570RB1 MAIN APPLICATIONS RF ID Radar detector Wireless Infrared Communication System Voice Transmission System A few MHz band Signal Detector FEATURES Wide Range Operating Voltage 1.8V to 9V (recommended supply voltage) Low Operating Current 2.9mA ( Typ., No Signal ) Wide Range IF Input Frequency 10.7MHz ( Standard ) up to 15MHz ( Reference ) Wide Band FM Detector Range DC to 1MHz ( Reference ) High FM Detection Sensitivity - 87dBm ( 12dB SINAD, typ. ) Package Outline MSOP8 ( TVSP ) * *JEDEC MO-187-DA / thin type BLOCK DIAGRAM IF IN DECOUPLE2 DECOUPLE1 GND 8 7 6 5 GND IF AMP RSSI + V 1 2 3 4 + DET OUT QUAD COIL V RSSI OUT Ver.2017-03-29 - 1 - NJM14570 ABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYMBOL RATINGS UNIT + Supply Voltage V 10 V Power Dissipation P 410 mW D Operating Temperature T o p r - 40 to + 85 C Storage Temperature T s t g - 50 to + 125 C RECOMMENDED OPERATIONAL CONDITION (Ta=25C) PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT + Supply Voltage V 1.8 3.0 9.0 V ELECTRICAL CHARACTERISTICS + (Ta = 25C, V = 3V, IF IN = 10.7MHz / - 30dBm, fdev = 50kHz, fmod = 1kHz, unless otherwise noted) PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT Current Consumption Iccq No Signal - 2.9 4.1 mA DETECTION Output Voltage V 60 100 160 mVrms OUT Total Harmonics Distortion THD - 0.5 2.0 % Signal to Noise Ratio S/N 54 60 - dB 12dB SINAD SINAD - - 87 - 81 dBm Limiter Input Resistance R - 330 - LIM RSSI V 1 No Signal 0.00 0.05 0.30 V RSSI V 2 - 60 dBm, No Modulation 0.20 0.40 0.60 V RSSI RSSI Output Voltage V 3 - 30 dBm, No Modulation 0.80 1.05 1.30 V RSSI V 4 0 dBm, No Modulation 1.20 1.50 1.80 V RSSI Ver.2017-03-29 - 2 -