NTE860 Integrated Circuit Low–Power, Narrow–Band FM IF Description: The NTE860 is an integrated circuit in an 18–Lead DIP type package which includes an oscillator, mixer, limiting amp, AFC, quadrature discriminator, op/amp, squelch, scan control and mute switch. Absolute Maximum Ratings: (TA = +25°C, unless otherwise specified) Power Supply Voltage, VCC(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V Operating Supply Voltage Range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4V to 9V Input Voltage (VCC ≥ 6.0 Volts), V18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0Vrms Mute Function, V16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.7 to 12Vpk Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C Electrical Characteristics: (VCC = 6V, fo = 10.7MHz, ∆f = ±3.0kHz, fmod = 1.0kHz, 50Ω source, TA = +25°C unless otherwise noted) Parameter Min Typ Max Unit Squelch OFF – 3.6 6.0 mA Squelch ON – 5.4 7.0 mA Input for 20dB Quieting – 8.0 – µArms Input for –3dB Limiting – 2.0 – µArms Drain Current (Pin4 & Pin8) Test Conditions Mixer Voltage Gain Pin18 to Pin3, Open – 46 – Mixer Third Order Intercept 50Ω Input – –1.0 – dBm – 2.2 – pF 450 700 – mVrms – 0.3 – V/kHz – 12 – V/kHz 40 51 – dB Mixer Input Capacitance Recovered Audio, Pin10 Input Signal 1.0mVrms Detector Center Frequency Slope, Pin10 AFC Center Slope, Pin11 Unloaded Filter Gain Squelch Threshold Through 10K to Pin14 – 0.01 1.0 µA Scan Control Current, Pin15 Pin14 High – 0.01 1.0 µA Pin14 Low 2.0 2.4 – mA Pin14 High – 5.0 – MΩ Pin14 Low – 1.5 – MΩ Mute Switch Impedance Pin Connection Diagram Crystal OSC 1 18 RF Input Crystal OSC 2 Mixer Output 3 17 GND 16 Audio Mute VCC 4 15 Scan Control Limiter Input 5 14 Squelch Input Decoupling 6 13 Filter Output Decoupling 7 12 Filter Input Quadrature Input 8 11 Demodulator Output 10 Recovered Audio Demodulator Filter 9 18 10 1 9 .250 (6.35) .870 (22.1) Max .150 (3.8) .100 (2.54) .800 (20.3) .125 (3.17) Min