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Testing Group Delay of the ADIS16448

Question asked by andrea.gramazio on Apr 12, 2016
Latest reply on Apr 13, 2016 by NevadaMark
Branched from an earlier discussion

Dear Mark,

regarding the maximum allowable group delay, my customer requires 1.1ms of group delay at 15Hz.

This derives from this requirement: he would like to replace an old electro-mechanical gyro with a ferquency response equal to a single pole RC filter, with cut-off frequency at 150Hz. The bandwidth of interest is around 15Hz, so He requires that the new gyro (your sensor + filters) has a similare frequency response, or better.


If I would like to measure the impulse response of the system (gyro + filters), can I use the self test funcion?

Can I force the test pulse at t0 and read the gyro output to plot impulse response?

Test pulse is applied exactly when I deassert the CS signal?

Thank you in advance and best regards,