2019-11-14 05:38 AM
Can the HRTIMER input frequeny be lower than the maximum value given in the datasheets? E.g. on a G74 with HRTIMER input at 125 MHz, steps would be nice 250 ps versus 188.2... ps at 170 MHz.
The functional description "HRTIM timer is made of a digital kernel clocked at 170 MHz followed by delay lines. " is a strong hint that only one frequency fits, but some confirmation is welcome.
2019-11-14 05:19 PM
See AN4539, Table 3. HRTIM input frequency operating range.
JW
2019-11-15 01:15 AM
These values belong in the datasheet and not hidden in some AN!
2019-11-15 03:13 AM
Well, I agree, but I guess, these are "typical" values, and not guaranteed by testing.
As you've might be already aware, I'm not ST.
JW
2019-11-15 03:23 AM