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Original question:

PGA460-Q1: 20 meters distance measuring

PGA460-Q1: Can PGA460 work with 25 kHz

Gabriel Onzi
Prodigy 130 points
Part Number: PGA460-Q1
Other Parts Discussed in Thread: TUSS4470, PGA460

Hello,

I found some really good transducers with 25kHz frequency. Is it possible to use PGA somehow with this frequency?

Regards,

Gabriel Onzi

  • 0
    TI__Expert 3450 points

    Hi,

    The PGA460 driver is limited by the clock to the ranges 30-80 kHz and 180-480 kHz. Unfortunately we do not have an AFE that is made to transmit and receive below 30 kHz. The TUSS4470 is able to transmit at 25 kHz because it uses an external clock, although the band pass filter in the receive path has a minimum center frequency setting of 27.48 kHz. Audiowell, Prowave, and Murata are a few good manufacturers that have transducers in the 40-60 kHz range. 

    regards,

    Gabriel