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THD + 10log10

P

S

P

D

(3)

ADS5440

SLAS467A – JULY 2005 – REVISED DECEMBER 2005

DEFINITION OF SPECIFICATIONS (continued)

Effective Resolution Bandwidth The highest input frequency where the SNR (dB) is dropped by 3 dB for a full-scale input

amplitude.

THD is typically given in units of dBc (dB to carrier).

to carrier) when the absolute power of the fundamental is used as the reference or dBFS (dB to full scale)

when the power of the fundamental is extrapolated to the converter’s full-scale range.

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