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AN64475 - PSoC®1 - Optimizing Cascaded Switched Capacitor Filters | Cypress Semiconductor

AN64475 - PSoC®1 - Optimizing Cascaded Switched Capacitor Filters

Last Updated: 
Nov 20, 2015
Version: 
*B

AN64475 demonstrates how PSoC® 1 switched capacitor band pass filters (BPF2, BPF4) and elliptical low pass filters (ELPF2 and ELPF4) can be combined to provide excellent near out-of-band rejection for communications applications. The included project demonstrates a filter system tuned to the requirements of a 60 kHz Binary phase shift keyed (BPSK) modem receiver. The design technique can be extended to other requirements using the filter design wizards in the user modules in PSoC Designer.

 

Example Project

Supported H/W and S/W Supported PSoC1 Devices
PSoC Designer Version H/W Kit CY8C20xxx CY8C21xxx CY8C22xxx CY8C23xxx CY8C24xxx CY8C27xxx CY8C28xxx CY8C29xxx
Yes 5.1 CY3210-PSoCEVAL1         x23A, x94 x43   x66