50MHz Input Mixer and 450kHz FM IF Demodulator IC

Manufacturer's part number :


Manufacturer New Japan Radio

New Japan Radio

Description :

The NJM2593 is a wide-operating voltage, low-current FM IF demodulator IC with 450kHz (standard) IF frequency. It includes an oscillator, mixer, limiting amplifier, quadrature detector, active filter, and FSK comparator.

The NJM2593 also has a RSSI circuit and RSSI comparator for carrier sense.

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  • Wide Operating Voltage (1.8V to 9V)
  • Low Operating Current (1.2mA type. at V+=2V´╝îexternal local oscillator input)
  • Maximum Mixer Input Signal (Frequency 50MHz(reference value))
  • Mixer Input Resistance (4.5kohms (reference value))
  • IF Frequency (450kHz(standard))
  • Conventional Quadrature Detector (External Phase-shifting Capacitor External Discriminator or LC Resonant Circuit)
  • RSSI Comparator with Open-Collector Output
  • Quick Charge/Discharge Circuit for FSK Reference Voltage
  • Bipolar Technology
  • Package Outline (SSOP20)
Features Similar products
IF Frequency (MHz) 0.455  

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Gain (dB) 20 Typ  
Package (mm) 6.5 x 4.4 x 1.15