Characteristics and Specifications 8
DC Power Supply Specifications
U3606A User’s and Service Guide 253
Square-wave output specifications
Table 8 - 9 Square-wave output specifications
Parameter Specifications
Amplitude accuracy
± (offset)
Range S1 0.2 V
Range S2 0.2 V
Amplitude resolution
Range S1 1 mV
Range S2 1 mV
Frequency accuracy
± (% of frequency setting + offset)
Range
(27 steps
[1]
)
[1] Available frequencies: 0.5, 2, 5, 6, 10, 15, 25, 30, 40, 50, 60, 75, 80, 100, 120, 150, 200, 240, 300, 400, 480, 600, 800, 1200, 1600,
2400, 4800 (Hz)
0.005% + 1 count
Frequency resolution 0.01 Hz
Duty cycle accuracy
± (% of duty cycle setting)
Range
(256 steps :
0.39% to 99.60%)
0.4%
[2][3]
[2] For frequency signals greater than 100 Hz, an additional 0.1% per 100 Hz is added. The accuracy of the duty cycle should be
calculated as:
Calculation example: Frequency setting = 4800 Hz, Duty cycle setting = 50%
The duty cycle accuracy (for frequency setting 4800 Hz) is calculated as 50% ± 2.55%.
Duty cycle resolution 0.39%
[3]
Pulse width accuracy
[3][4]
± (offset)
Range
(256 steps:
1/frequency)
Duty cycle/frequency
Pulse width resolution Range/256
Accuracy 0.4%
frequency
100
----------------------------- 1–
⎝⎠
⎛⎞
0.1%×+
⎝⎠
⎛⎞
=
Specification of duty cycle Accuracy Duty cycle setting×()±=
Specification of duty cycle 0.4%
4800
100
------------ 1–
⎝⎠
⎛⎞
0.1%×+
⎝⎠
⎛⎞
50%×
⎝⎠
⎛⎞
±
5.1
100
---------
50%×
⎝⎠
⎛⎞
± 2.55± %===
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