sinc3 filter and decimation when using ADuC7061


ADCs of ADuC7061 employ a sinc3 Filter which affect ADC throughput rate and accuracy.

This filter is controlled via ADCFLT MMR.

What is the allowed Range for the SF word which is part of ADCFLT?

At p. 40 the datasheet states:

"With chopping disabled, the minimum SF word allowed is 3 and the maximum is 127,

giving an ADC throughput range of 50 Hz to 2 kHz." However at p. 48 table 47 implies that 0-2 are valid values for SF as well.

Could someone comment on this?!

Best Regards