LINE_FM_DEMODULATOR

Published:2009/7/3 1:50:00 Author:May | From:SeekIC

Exar XR-2212 predsion PLL IC provides Iinear demodulation for both narrow-band and wideband FM signals. Article gives circuit design procedure.With +12 V supply voltage and 67-kHz carrier frequency having ±5 kHz frequency deviation, R0 is 18K fixed resistor in series with 5K pot. C0 (between pins 13 and 14) is 746 pF, R1 is 89.3K, C1 is 186 pF, RF is 100K, and RC is 80.6K. These values give ±4 V P output swing. AII values except R0 can be lounded off to nearest standard value.- Phase-Locked Loop Data Book, Exar Integrated Systems, Sunnyvale, CA, 1978, p 35-40.



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