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  • uIP: Precision Tone Decoder
  • uIP ID: 420089668
  • μIP Type: Digital μIP
  • HDL: Verilog
  • Warranty: YES
  • Simulation Tool: Model-sim
  • Tool Version:
  • Design Format: RTL
  • Merge In Foundry: NO
    Designer Information
  • Member ID:5591462000500175
  • Designer Rating:
  • Feedback received:0
 

1. Introduction:

The IP is a precision tone decoder with the capacity to support either real or complex data samples. Samples are first mixed-down to baseband before subsequent filtering and tone detection.

The centre frequency of the tone is fully programmable and is generated by a local oscillator (DDS).  The DDS has an SFDR of better than 80 dBs (with phase dithering) and a theoretical SNR of approximately 100 dBs.

After down-conversion, 2 paths are filtered to remove components above the tone of interest.  The characteristics of these filters may be changed depending on the desired detection bandwidth and
response time.

Finally, a power function is used to compute the relative magnitude of the signal after filtering.

Application

  • Precision frequency monitoring and control
  • FSK / OOK / ASK demodulation
  • Touch tone decoding (e.g. DTMF tones)
  • Complex digital down conversion

 


2. License Price:

By Quotes

Multiple License : NO


3. Clock Rate:

200 MHz


4. Logic Gate Count:

None


5. Technology:

None


6. Version:

1.0