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NJM2211M
NJM2211 FSK DEMODULATOR / TONE DECODER ■ GENERAL DESCRIPTION The NJM2211 is a monolithic phase-locked loop (PLL) system especially designed for data communications. It is particularly well suited for FSK modem applications, and operates over a wide frequency range of 0.01Hz to 300kHz. It can accommodate analog signals between 2mV and 3V, and can interface with conventional DTL, TTL and ECL logic families. The circuit consists of a basic PLL for tracking an input signal frequency within the passband, a quadrature phase detector which provides carrier detection, and an FSK voltage comparator which provides FSK demodulation. External components are used to independently set carrier frequency, bandwidth, and output delay. ■ FEATURES ● Wide Operating Voltage ● Wide frequency range ● DTL / TTL / ECL logic compatibility ● FSK demodulation with carrier-detector ● Wide dynamic range ● Adjustable tracking range ● Excellent temperature stability ● Package Outline ● Bipolar Technology (4.5V to 20V) (0.01Hz to 300kHz) ■ PACKAGE OUTLINE NJM2211D NJM2211M (2mV to 3Vrms) (±1% to ±80%) (20ppm / °C typical) DIP14, DMP14 ■ APPLICATIONS ● FSK demodulation ● Data synchronization ● Tone decoding ● FM detection ● Carrier detection ■ PIN CONFIGURATION NJM2211D NJM2211M Ver.2003-12-09 -1-
JRC
日本無線株式会社
日本
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