Delta ASD-A2 Series User Manual page 159

Chapter 6 Control Mode of Operation
 Filter Width
If the received frequency is much higher than the setting, it will be regarded as
the noise and filtered out.
Setting
Value
1) When the source of external pulse is from the high-speed differential signal and
NOTE
the setting value is 0 (the high-speed filter frequency is 3.33Mpps at the moment),
then:
If the user uses 2~4MHz input pulse, it is suggested to set the filter value to 4.
Note: When the signal is the high-speed pulse specification of 4 Mpps and the
settings value of the filter is 4, then the pulse will not be filtered.
6-4
Min. pulse width*
(Low-speed filter frequency)
0 600 ns (0.83 Mpps)
1 2.4 us (208 Kpps)
2 4.8 us (104 Kpps)
3 9.6 us (52 Kpps)
4 No filter function
Setting
note1
Value
(High-speed filter frequency)
0
1
2
3
4
ASDA-A2
Min. pulse width*
note1
150 ns (3.33 Mpps)
600 ns (0.83 Mpps)
1.2 us (416 Kpps)
2.4 us (208 Kpps)
No filter function
Revision February, 2017