Delta-Time Measurement Accuracy Test - Agilent Technologies 54853A Service Manual

Chapter 3: Testing Performance

Delta-time Measurement Accuracy Test

Delta-time Measurement Accuracy Test

Specification
≥256 Averages
Averaging disabled
Signal peak-to-peak amplitude ≥5 divisions, vertical scale ≥10mV/div, signal rise time 155ps (54853A) ≤225 ps (54854A) 150 ps
(54855A), sample rate = 20 GSa/s, sinx/x interpolation enabled, measurement threshold = fixed voltage at 50% level.
Measurement is between two edges on a single channel.
RMS value refers to the standard deviation of 256 consecutive measurements performed using an individual instrument.
Equipment Required
Description
Microwave CW Generator
Microwave Cable Assembly 50Ω Characteristic Impedance
Adapter
Connections
Microwave
50 Ohm
Signal
RF Output
Source
Procedure
Connect the microwave signal source to scope channel 1 as shown in the connection
1
diagram above.
Set up the scope as follows:
2
a Press Default Setup.
b Set channel 1 vertical sensitivity to 100 mV/div.
c Set the horizontal scale to 48 ps/div (54855A and 54854A) or 76 ps/div (54853A).
Click here and enter
48E-12 or 76E-12
3–28
RMS: 70 fs
Peak: ±[(0.5 ps) + (1x10-6 * |reading|)]
RMS: 2.0 ps
Peak: ±[(7.0 ps) + (1x10-6 * |reading|)]
Critical Specifications
Maximum Frequency ≥6 GHz
Power range: -20 dBm to +16 dBm into 50Ω
Frequency Accuracy better than 0.4 ppm
Output resistance = 50Ω
3.5 mm (m) or SMA (m) connectors
Max Frequency ≥18 GHz
3.5 mm (f) to Precision BNC
Channel 1
Recommended Model/Part
Numbers
Agilent E8247C with Opt 520 or
Agilent 82712B with Opt 1E5 or
Agilent 8665B with Opt 004
Agilent 8120-4948 or
Agilent 11500E or
Gore EKD01D010480
Agilent 54855-67604
Scope
Under
Test