Agilent Technologies 53131A Assembly Level Service Manual page 244

Chapter 8 Agilent 53181A Specifications
Measurement Specifications (Continued)
Measurement Specifications (Continued)
⁄
h1
Frequency Ratio:
Ch2
Measurement is specified over the full signal range of each input.
Results Range: 10
'Auto' Gate Time: 100 ms (or sufficient cycles on Channel 1 to make a valid measurement, whichever is longer)
LSD:
1
Rat io 1 2
----------------------------------------------------------- -
⁄
:
×
Ch2 Freq Gate Time
Ch2 Freq
Rat io 2 1
-------------------------------------------------------------------
⁄
:
2
( ) ×
Ch1 Freq Gate Time
RMS Resolution:
× (
+
2 1 Ch1 Freq
Ratio 1 2
⁄ -------------------------------------------------------------------------------------------------------------- -
:
×
Ch2 Freq
× ×
+
2 Ch2 Freq 1
Ratio 2 1
⁄ ---------------------------------------------------------------------------------------------------------------------------------------------- -
:
(
Ch1 Freq
To minimize relative phase measurement error, connect the higher frequency signal to Channel 1 when possible.
Peak Volts
Measurement is specified on Channels 1 for DC signals; or for AC signals of frequencies between 100 Hz and 30 MHz with peak-to-peak
amplitude greater than 100 mV. (The measurement will continue to operate up to 225 MHz, though results are for indication only.)
Results Range: –5.1 V to +5.1 V
Resolution: 10 mV
Systematic Uncertainty for AC signals: 25 mV + 10% of V
for DC signals: 25 mV + 2% of V
Use of the input attenuator multiplies all voltage specifications (input range, results range, resolution and systematic uncertainty) by a
nominal factor of 10. For example with AC signals, the Systematic Uncertainty becomes: 250 mV + 10% of V.
8-8
⁄
Ch2
Ch
–10 11
to 10
2
× )
Ch2 Trigger Error
Gate Time
2
( × )
Ch1 Freq Ch2 Trigger Error
2
) ×
Gate Time
Assembly-Level Service Guide