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Simplified FSK Signal Detection | Cypress Semiconductor

Simplified FSK Signal Detection

Last Updated: 
Sep 23, 2008

FSK (Frequency Shift Keying) is the modulation cornerstone of a number of digital data transmission systems. The transmit signal is relatively easy to generate. Receive processing is tolerant of a wide range of signals and relatively immune to a large class of interfering signals. This Application Note outlines a simple, almost-all hardware method for detecting FSK signals using the analog signal processing capabilities of the PSoC(R).