how many times is the FFT output data magnified in dynamic scaling mode ？

Muhua Chen

Hi，

The FFTC of TMSC6670 provides a dynamic scaling mode，but how many times is the fft output data magnified in this mode? Where can I check the coefficient ？

Thanks very much.

over 12 years ago

0 Sudhanand Dayalan over 12 years ago

TI__Genius 12135 points

Dynamic scaling is applied at the input of each stage in the FFTC. The number of stages depends on the FFT block size, refer to sections 2.1.2.1.7 and 2.1.1.1.13 of the UG

The 'Block Exponent' is returned in the header of the RX payload if side info is enabled. Refer to section 4.1of the UG.

Sudhanand.

0 Muhua Chen over 12 years ago in reply to Sudhanand Dayalan

Prodigy 130 points

thanks！The problem has been solved.

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how many times is the FFT output data magnified in dynamic scaling mode ？