ES51961
3 3/4 MANU DMM
0.1 us
Hi
Lo
<4> Period input(10M)
<5> Unknow
VH(4.0,2.4,1.5V)
VL(0.8V)
input
0.5~1 ms
300 ms
300 ms
Frequency Counter
The timebase of ES51961 is derived by a crystal or internal RC clock
oscillator. The timebase of counter is :
4,000,000
Tcount =
Fosc
Thus, the counter will operate with a 1 second timebase when a 4MHz crystal
oscillator is used. For accurate frequency measurement, a crystal oscillator is
recommended. The frequency counter can automatically select the proper range.
Autorange operation extends over five decades from 1 Hz to 399.9 MHz.
Range
FR1
FR2
FR3
FR4
FR5
FR6
Full Scale
3.999 KHZ
39.99 KHZ
399.9 KHZ
3.999 MHZ
39.99 MHZ
399.9 MHZ
11
2006/1/24
CYRUSTEK [ Cyrustek corporation ]
