Keysight U1271A - Table 5-12 Duty Cycle and Pulse Width Calculation Example

5 Characteristics and Specifications
Electrical Specifications
170 U1271A/U1272A User’s Guide
Calculation example
Pulse width
- 999.99 ms 0.01 ms
(duty cycle
accuracy/frequency)
+ 0.01 ms
- 2000.0 ms 0.1 ms
(duty cycle
accuracy/frequency)
+ 0.1 ms
Notes for pulse width specifications:
1 The accuracy for duty cycle and pulse width measurements is based on a 3 V square wave input to the DC 3 V range.
2 The pulse width (positive or negative) must be >10 μs. The range of the pulse width is determined by the frequency of the
signal.
Table 5-11 Duty cycle and pulse width specifications
Function Mode Range Resolution Accuracy at full scale
Table 5-12 Duty cycle and pulse width calculation example
Frequency
Duty cycle range
[1]
Accuracy
From To Duty cycle
[2]
Pulse width
[3]
100 Hz 0.1% 99.9% 0.33% 0.043 ms
1 kHz 1% 99% 0.6% 0.016 ms
Notes for duty cycle and pulse width calculation example:
1 The range of the duty cycle is determined from this equation:
{10 μs × frequency × 100%} to {[1 – (10 μs × frequency)] × 100%}.
2 The accuracy of the duty cycle is determined from this equation: [0.3% × (frequency kHz)] + 0.3%
3 The accuracy of the pulse width is determined from this equation: (duty cycle accuracy/frequency) + 0.01 ms.