NJM3359 LOW POWER NARROW BAND FM IF ■ GENERAL DESCRIPTION The NJM3359 is a low power narrow band FM detector integrated circuit. for FM dual conversion of communication equipment. The NJM3359 includes oscillator, limiting amplifier, AFC circuit, quadrature detect, operational amplifier, squelch circuit, scan-control and muting switch. The NJM3359 is a circuit of NJM3357 plus one stage limiting IF amplifier and AFC output terminal. ■ FEATURES ● Low Operating Current ● Input Limiting Voltage ● Minimum other parts. ● Package Outline ● Bipolar Technology ■ PACKAGE OUTLINE NJM3359D (3.6mA typ@V+=6V) (2.0µVrms typ@-3dB) DIP18 ■ RECOMMENDED OPERATIONAL CODITION ● Operating Voltage 4 to 9V ■ PIN CONFIGURATION NJM3359D Ver.2003-12-09 -1- NJM3359 ■ ABSOLUTE MAXIMUM RATINGS PARAMETER (Ta=25°C) RATINGS UNIT V 12 V Input Voltage V18 1.0 Vrms Muting Function V16 -0.7 to 12 VPK Operating Temperature Range Topr -40 to 85 °C Storage Temperature Range Tstg -40 to 125 °C Supply Voltage SYMBOL + (V+=6V, fO=10.7MHz, ∆f=±3.0kHz, fmod=1.0kHz, Ta=25°C) ■ ELECTRICAL CHARACTERISTICS PARAMETER MIN. TYP. MAX. UNIT Squelch OFF - 3.6 6.0 mA Squelch ON - 5.4 7.0 mA Input Sensitivity (S / N : 20dB) - 8.0 - µVrms Input Limitting Voltage (-3dB) - 2.0 - µVrms Operating Current PIN PIN 4,8 Mixer Voltage Gain PIN 18 - PIN 3 Open - 33 - dB Mixer Intercept Point 50Ω input - -1.0 - dBm Mixer Input Resistance - 3.6 - kΩ Mixer Input Capacitance - 2.2 - pF 450 700 - mVrms Recovered Audio Output Voltage PIN 10, VIN=1.0mVrms Detector Center Frequency Slope PIN 10 - 0.3 - V / kHz AFC Center Frequency Slope PIN 11, RL=∞ - 12 - V / kHz Filter Gain fIN=10kHz, VIN=5mV 40 51 - dB Squelch Threshold Voltage PIN 14, 10kΩ - 0.62 - Vdc Scan Control Current PIN 15 - 0.01 1.0 µA 2.0 2.4 - mA PIN14 - High - 5.0 10 Ω - Low - 1.5 - MΩ PIN 14 - High - Low Mute Switch Impedance -2- PIN 16 - GND Ver.2003-12-09 NJM3359 ■ TEST CIRCUIT ■ APPLICATION EXAMPLE Ver.2003-12-09 -3- NJM3359 ■ TYPICAL CHARACTERISTICS Input - Output Local OSC Frequency AFC Characteristics Mixer Gain vs. Input Frequency Temperature Characteristics Demodulator Output [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. -4- Ver.2003-12-09