Agilent 81133A/81134A
Performance
Verification
Rev. 2.0, December 2003
Agilent Technologies
Agilent 81133A / 81134A Performance Verification
Introduction
Use these tests if you want to check that the Agilent 81133A / 81134A
Pulse / Pattern Generator is working correctly. Before starting any testing
allow all test equipment to warm up for at least 30 minutes and make
sure that the SELFCAL of the unit was executed.
Test Results Tables
Tables for entering the results of the tests are included at the end of the
tests. The tests are numbered and reference numbers for each Test Result
(TR) are given in a small table at the end of each test. The reference
number shows you where the actual results should be entered in the Test
Results Tables.
Agilent 81133A / 81134A Performance Verification
3
Agilent 81133A / 81134A Performance Verification
Power Splitter
m) Adaptor
1159
1700
20dB
Recommended Test Equipment and
Accessories
The following tables list the recommended test equipment you need to
perform all the tests. You can use alternative instruments if they meet the
critical specifications given. The test set-ups and procedures assume you
are using the recommended equipment.
Test Equipment Model Critical Specifications
Table 1
Oscilloscope
or
DCA Agilent 86100B with
Counter Agilent 53132A
Digital Voltmeter Agilent 3458A
Delay Line Agilent 54008A 22 ns (for 54120 series)
Accessories Model Critical Specifications
Digitizing Oscilloscopes Accessories
Attenuators
SMS/SMA (mSMA(f)/BNC(m) Adaptor
SMA Cable
Agilent 54121T or
Agilent 54123 T
86112A channel
#010, 030
20 GHz / 34 GHz, 10 bit vertical
resolution, Histogram
Frequency measurements up to
3.35 GHz, High-Stability Timebase
8493C#020
8493C#006
11667B
125012508120-4948
6 dB
4
50 Ω Feedthrough Termination 10100C or
better (see
Figure)
Agilent 81133A / 81134A Performance Verification, December 2003
2 W, 1%
10 W, 0.1 %
Agilent 81133A / 81134A Performance Verification
Accessories Model Critical Specifications
Adaptor 1251-2277 BNC to Banana
Cable Assemblies, BNC 8120-1839
Torque Wrench 8710-1582 5/16 in, 5 lb-in (56 Ncm)
Important:
When you connect the test equipment for the first time, and whenever
you change the setup during the course of these tests, always switch off
the 81133A/81134A' s outputs.
Use the 8710 - 1582 torque wrench to tighten and loosen SMA connectors.
This will ensure that the connectors are at the correct tightness and give
the best signal transfer.
Agilent 81133A / 81134A Performance Verification, December 2003
5
Agilent 81133A / 81134A Performance Verification
50 Ohm, 0.1%, 10 W Feedthrough Termination
The following figure provides a schematic and a parts list except for the
case. The case must provide shielding and maintain grounding integrity.
50 Ohm, 0.1%, 10W Feedthrough Termination
The following parts are required:
• R1 = 53.6 Ω, 1%, 10 W
• R2 = 200 Ω, 10%, 0.5 W, Variable Trimmer
• R3 = 681 Ω, 1%, 0.5 W
• Connectors: BNC male, BNC female
Agilent 81133A / 81134A Performance Verification, December 2003
6
Agilent 81133A / 81134A Performance Verification
Test Specifications
Equipment Needed
Procedure
Test 1: Frequency
Range: 15 MHz to 3.35 GHz
Resolution: 1 Hz
Accuracy: 50 ppm
Counter
Cable 50 Ω, SMA
1 Connect the 81133A/81134A Trigger Output to the Counter Channel 1
Input
2 Reset the 81133A/81134A to default settings
3 Select the [Aux] screen on the 81133A/81134A and set up the unit as
follows:
Agilent 81133A / 81134A Performance Verification, December 2003
7
Agilent 81133A / 81134A Performance Verification
4 Switch on the trigger output and set the counter to measure the
frequency at Channel 1
5 Check the frequency at the following settings:
Frequency Acceptable Measured Frequency TR Entry
15 MHz 14.99925 MHz to 15.00075 MHz 1-1
50 MHz 49.9975 MHz to 50.0025 MHz 1-2
100 MHz 99.995 MHz to 100.005 MHz 1-3
200 MHz 199.990 MHz to 200.010 MHz 1-4
6 Connect the 81133A/81134A Trigger Output to the Counter Channel 3
input.
7 Check the frequency at the following settings:
Frequency Acceptable Measured Frequency TR Entry
500 MHz 499.975 MHz to 500.025 MHz 1-5
1.0 GHz 999.950 MHz to 1.00005 GHz 1-6
2.0 GHZ 1.9999 GHz to 2.0001 GHz 1-7
3.0 GHz 2.99985 GHz to 3.00015 GHz 1-8
3.35 GHz 3.34983 GHz to 3.35016 GHz 1-9
Agilent 81133A / 81134A Performance Verification, December 2003
8
Agilent 81133A / 81134A Performance Verification
Test Specifications
Equiopment Needed
Procedure
Test 2: Width
Range: 100 ps to (period - 100 ps)
Resolution: 1 ps
Accuracy: ± 40 ps after autocal within a temperature range of ± 10°
Digitizing Oscilloscope with Accessories
Cables 50 Ω, SMA
1 Connect the 81133A/81134A Trigger Output to the Oscilloscope
Trigger Input, using a 20 dB attenuator
2 Connect the 81133A/81134A Channel 1 Output to the Oscilloscope
Channel 4 Input, using a 20 dB attenuator
3 Set up the Pulse Generator as follows:
Agilent 81133A / 81134A Performance Verification, December 2003
9
Agilent 81133A / 81134A Performance Verification
4 Set up the [Channel] screen as follows:
On the 81134A set up both channels and switch on only the channel
that is being tested.
5 Set the Digitizing Oscilloscope Agilent 54121T:
• Press [AUTOSCALE]
• Select the Display menu and set the Number of Averages to 32
• Select the Delta V menu and switch the voltage markers on
• Set the preset levels to 50% - 50% and press [AUTO LEVEL SET]
• Select the Delta T menu and switch the time markers on
• Set START ON EDGE = POS 1 and STOP ON EDGE = NEG 1
6 Change the oscilloscope timebase to 100 ps/div
7 Change the Agilent 81133A/81134A Width to 100 ps
8 Center the pulse in the oscilloscope display
9 Press the [PRECISE EDGE FIND] key for each new width setting
10
Agilent 81133A / 81134A Performance Verification, December 2003
Agilent 81133A / 81134A Performance Verification
10 Check the Agilent 81133A/81134A pulse width at the following
settings:
Oscilloscope
Timebase
100 ps/div 100 ps 60 ps to 140 ps 2-1
100 ps/div 500 ps 460 ps to 540 ps 2-2
500 ps/div 1 ns 960 ps to 1.040 ns 2-3
500 ps/div 2 ns 1.96 ns to 2.04 ns 2-4
Larger pulse widths are generated with counted delays. The performance
is guaranteed by the design and does not need to be verified.
For the 81134A repeat the test for the second channel.
Width Acceptable Range TR Entry
Agilent 81133A / 81134A Performance Verification, December 2003
11
Loading...