NJM2593 ic equivalent, 50mhz input mixer and 450khz fm if demodulator ic.
Wide Operating Voltage 1.8V to 9.0V Low Operating Current 1.2mA type. at V+ =2.0V, external local oscillator input Maximum Mixer Input Signal Frequency 50MHz (reference v.
information.
V+
8
FSK VREF2
8
0.44V
V+
IF Output An external phase - shifting capacitor is connected between pin9 .
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 ci.
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