NTE853 Datasheet, PDF (1/2 Pages) NTE Electronics – Integrated Circuit Low Power, Narrow Band, FM IF System

NTE853
Integrated Circuit
Low Power, Narrow Band, FM IF System
Description:
The NTE853 is a low power narrow band FM IF system which includes: Oscillator, Mixer, Limiting
Amplifier, Quadrature Discriminator, Active Filter, Squelch, Scan Control and Mute Switch. The
NTE853 is designed for use in FM dual conversion communications equipment.
Features:
D Low Drain Current (3mA Typ @ V_CC = 6V)
D Excellent Sensitivity: Input Limiting Voltage (–3.0dB) = 5.0µV (Typ)
D Low Number of External Parts Required
Absolute Maximum Ratings: (T_A = +25°C, unless otherwise specified)
Power Supply Voltage (Pin4), V_CC(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V
Operating Supply Voltage Range (Pin4), V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4V to 8V
Detector Input Voltage (Pin8), . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1V_p–p
Input Voltage (V_CC ≥ 6V, Pin16), V₁₆ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1V_RMS
Mute Function (Pin14), V₁₄ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5V to 5V_pk
Operating Junction Temperature, T_J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Operating Ambient Temperature Range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +70°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Electrical Characteristics: (V_CC = 6V, f_O = 10.7MHz, ∆f = ± 3kHz, f_mod = 1kHz, T_A = +25°C
unless otherwise specified)
Parameter
Drain Current, Squelch OFF
Drain Current, Squelch ON
Input Limiting Voltage
Detector Output Voltage
Detector Output Impedance
Recovered Audio Output Voltage
Pin
Test Conditions
4
4
16 –3dB Limiting
9
–
9 V_in = 10mV
Min Typ Max Unit
– 2 – mA
– 3 5 mA
– 5 10 µV
–3–
V
– 400 –
Ω
200 350 – mV_rms