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LM3361A - LM3361A Low Voltage/Power Narrow Band FM IF System

General Description

The LM3361A contains a complete narrow band FM demodulation system operable to less than 2V supply voltage Blocks within the device include an oscillator mixer FM IF limiting amplifier FM demodulator op amp scan control and mute switch The LM3361A is similar to the MC3361 with the following improvem

Key Features

  • Y Y Y Y Y Y Functions at low supply voltage (less than 2V) Highly sensitive (b3 dB limiting at 2 0 mV input typical) High audio output (increased 6 dB over MC3361) Low drain current (2 8 mA typ VCC e 3 6V) Minimal drain current increase when squelched Low external parts count Block Diagram and Test Circuit TL H 5586.
  • 1 Order Number LM3661AM or LM3361AN See NS Package Number M16A or N16E C1995 National Semiconductor Corporation TL H 5586 T1-TOKO RMC-2A6597HM CF-MURATA CFU 455E RRD-.

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LM3361A Low Voltage Power Narrow Band FM IF System August 1989 LM3361A Low Voltage Power Narrow Band FM IF System General Description The LM3361A contains a complete narrow band FM demodulation system operable to less than 2V supply voltage Blocks within the device include an oscillator mixer FM IF limiting amplifier FM demodulator op amp scan control and mute switch The LM3361A is similar to the MC3361 with the following improvements the LM3361A has higher voltage swing both at the op amp and audio outputs It also has lower nominal drain current and a squelch circuit that draws significantly less current than the MC3361 Device pinout functions are identical with some slightly different operating characteristics Features Y Y Y Y Y Y Functions at low supply voltage (less than 2V) Highly