Using the 25 MIPS CPU and on-chip ADC, the C8051F300 can perform DTMF tone generation and decoding. The combination of high performance and small size (3x3 mm) makes the C8051F300 an ideal choice for applications requiring DTMF decoding or other CPU intensive tasks.

The DTMF Decoder Reference Design kit contains the following items:

• DTMF Decoder Evaluation Board containing a DTMF generator and decoder, keypad and 7-segment LED
• DTMF Decoder Kit User´s Guide with step-by-step instructions for running the DTMF Demo on the DTMF Decoder Evaluation Board
• Reference Design Kit CD containing:
  • The Silicon Laboratories Integrated Development Environment (IDE)
  • Full C source code for the DTMF decoder and generator
  • Reference design documentation (AN218)
  • C8051F30x device data sheet