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2013•Unpublished venueOpen access

Design and Implementation of FSK Modulation and Demodulation Module Using CPLD

Lihua Wu, Yu Jie Huang

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Abstract

According to the working principle of digital FSK modulation and demodulation, two kinds of circuit schemes based on CPLD and single chip are compared.The circuit module of FSK modulation and demodulation based on CPLD is designed, and CPLD is programmed by Quartus II software to carry out the function of FSK modulation and demodulation.The single chip ATMEGA16 is programmed by IAR FOR AVR software to carry out the function of bit synchronization, and it can communicate with outside by SPI interface.Both simulations and experimental tests prove the exactness of design through building up the actual circuit.

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According to the working principle of digital FSK modulation and demodulation, two kinds of circuit schemes based on CPLD and single chip are compared.The circuit module of FSK modulation and demodulation based on CPLD is designed, and CPLD is programmed by Quartus II software to carry out the function of FSK modulation and demodulation.The single chip ATMEGA16 is programmed by IAR FOR AVR software to carry out the function of bit synchronization, and it can communicate with outside by SPI interface.Both simulations and experimental tests prove the exactness of design through building up the actual circuit.

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Available abstract

According to the working principle of digital FSK modulation and demodulation, two kinds of circuit schemes based on CPLD and single chip are compared.The circuit module of FSK modulation and demodulation based on CPLD is designed, and CPLD is programmed by Quartus II software to carry out the function of FSK modulation and demodulation.The single chip ATMEGA16 is programmed by IAR FOR AVR software to carry out the function of bit synchronization, and it can communicate with outside by SPI interface.Both simulations and experimental tests prove the exactness of design through building up the actual circuit.

Key concepts: Frequency-shift keying, Demodulation, Complex programmable logic device, Modulation (music), Computer science, Electronic engineering, Embedded system, Telecommunications

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