AN2247 - Analog - Low CPU Consumption DTMF Detector | Cypress Semiconductor
AN2247 - Analog - Low CPU Consumption DTMF Detector
Jun 30, 2014
This is an Obsolete Application NoteThe document AN2247 - Analog - Low CPU Consumption DTMF Detector has been marked as obsolete. The obsolete version of this application note is still available with the below description but may not be complete or valid any longer. If you have any questions or require support in regards to the below application note content, please click here and create a technical support case.
AN2247 demonstrates the ability of the PSoC® device to create frequency filters. This device was selected to create an efficient dual-tone multi-frequency (DTMF) detector with minimal CPU consumption.