Latency of a frequency detection algorithm

Laura Brandt

I'd like to take a 1-100 kHz mixed-frequency signal and use this DSP to detect the presence of a specific (user-modifiable) frequency.

I'm wondering what kind of latency I should expect from an A-to-D plus this DSP performing an FFT on a signal in that frequency range.

over 8 years ago

0 Yordan Kovachev over 8 years ago

TI__Guru**** 161600 points

Hi,

I've notified the factory team. Their feedback will be posted here.

Best Regards,
Yordan

0 Rahul Prabhu over 8 years ago

TI__Guru** 116770 points

Please check the core benchmarks for FFT implementation on the DSP:
www.ti.com/.../core-benchmarks.page

The latency from A2D to DSP depends on many factors, what interface are you using, is the core or DMA moving the data from peripheral to internal memory, is FIFO enabled, are you using OS or not, etc?

Generally C6000 devices can easily handle multi-channel data at high sampling frequencies so they get used in professional audio products and industrial and test and measurement end equipments.

Regards,
Rahul

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Latency of a frequency detection algorithm