NJM2597 Datasheet (JRC) - 455kHz INPUT FM IF DEMODULATOR

NJM2597, 455kHz INPUT FM IF DEMODULATOR

The NJM2590 and NJM2597 are low current FM IF demodulator ICs with 455kHz IF input, which operate from 1.6V supply.

The NJM2590/97 contain the minimum functions required to FM IF demodulator, that is, IF amplifier, quadrature detector, LPF amplifier, FSK comparator, RSSI, and RSSI comparator.

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NJM2597 Features

* Low Operating Voltage 1.6V to 5.5V Low Operating Current 550uA at V+ =1.8V IF Input Frequency 455kHz (standard) RSSI Comparator The Range of Linear Area on RSSI Output versus IF Input Characteristics NJN2590 IF Input level=25 to 60 dBuVEMF (reference value) NJM2597 IF Input level=35 to 85 dBuVEMF (r