5
5Agilent 81104A/’05A
Performance Test
1
Agilent 81104A/’05A Performance Test
Introduction
Use the tests in this chapter if you want to check that the Agilent
81104A Pulse Generator Frame with the Agilent 81105A 80 MHz
Output Channel(s) is working correctly. Before starting any testing allow all test equipment to warm up for at least 30 minutes.
Conventions Used
When referring to actions that you perform during the tests, the
following conventions are used:
FUNCTION This indicates that a labelled button must be pressed
[MODE/TRG] This shows that a soft-key must be pressed. A softkey is an unlabelled button whose label is shown on the display,
and which can vary according to the job that the button is doing
CONTINUOUS PULSES This is an option shown on the display, and is selected by use of the vernier keys. It is shown in
upper or lower case to match the case displayed.
Test Results Tables
Tables for entering the results of the tests are included at the end
of this chapter. 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.
The Test Results tables at the end of the chapter should be photocopied, and the Test Results entered on the copies. Then, if the
tests need to be repeated, the tables can be copied again.
2 Agilent 81104A/’05A Performance Test
Agilent 81104A/’05A Performance Test
If Channel 2 has been fitted to your instrument, make an extra
copy of the Test Results tables for entry of the results of tests on
that channel. In this case, however, it is not necessary to repeat the
Period tests, as these are common to both channels.
Agilent 81104A/’05A Performance Test 3
Agilent 81104A/’05A Performance Test
Recommended Test Equipment and Accessories
The following tables list the recommended test equipment you
need to perform all the tests in this chapter. 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
Oscilloscope
or
Oscilloscope Agilent 54750A +
Counter
or
Counter Agilent 53132A
Digital Voltmeter Agilent 3458A DCV up to 20 V
Pulse Generator Agilent 8110A up to 150 MHz
Delay line Agilent 54008A 22 ns
Agilent 54121T 20 GHz, 10 bit vertical resolution, Histogram
Agilent 54751A
Agilent 5334B
#010, 030
#001/010, 030
20 GHz, 15 bit vertical resolution, Histogram
Period and Time Interval measurements
Oven Osci, 1.3 GHz C-Channel
Frequency measurements > 150 MHz
High-Stability Timebase, 3 GHz Channel
4 Agilent 81104A/’05A Performance Test
Agilent 81104A/’05A Performance Test
Accessories Model Critical Specifications
Digitizing Oscilloscopes Accessories
Attenuators
Power Splitter
SMA/SMA (m-m) adaptor
SMA/BNC Adaptor
SMA Cable
50 Ω Feedthrough Termination 10100C
Adapter 1251-2277 BNC to Banana
Cable Assemblies, BNC E9632A
Torque Wrench 8710-1582 5/16 in, 5 lb-in (56 Ncm)
8493C#020
33340C#020
8493C#006
33340C#006
11667B
1250-1159
E9632A
(1250-1700)
8120-4948
See Figure
(8120-1839)
20 dB
6 dB
2 W,1%
10 W,0.1%
NOTE: When you connect the test equipment for the first time, and
whenever you change the setup during the course of these tests,
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 81104A/’05A Performance Test 5
Agilent 81104A/’05A Performance Test
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%, 10 W Feedthrough Termination
The following parts are required:
1. R1 = 53.6Ω, 1%, 10 W; Part Number: 0699-0146.
2. R2 = 200 Ω, 10%, 0.5 W, Variable trimmer; Part Number:
2100-3350.
3. R3 = 681 Ω;, 1%, 0.5 W; Part Number: 0757-0816.
4. BNC (M): Part Number: 1250-0045.
5. BNC (F): Part Number: 1250-0083.
6 Agilent 81104A/’05A Performance Test
Getting Started
The Agilent 81104A is controlled by selecting options in a series
of pages that are displayed on the instrument's screen. These
options vary with the boards that are fitted in the instrument.
When the Agilent 81104A is being tested, therefore, different situations can arise, depending on whether you have a standard instrument or one that has had additional boards fitted. The following
examples illustrate this
Typical Examples of Displayed Screens
Agilent 81104A/’05A Performance Test
Per 1.000µs Normal
OFF
1
Delay
Width
LeadE
TraiE
The OUTPUT Screen in a Standard Agilent 81104A
Agilent 81104A/’05A Performance Test 7
0ps
100.0ns
3.00ns
=LeadE
OUTPUT PATTERNLIMITSMODE/TRG
Offset
Amplit
50Ω into 50.0
+0.0mV
1.00V
*OFF
ON
Ω
MODIFY
Agilent 81104A/’05A Performance Test
OFF 1.000µs OFF
1
Delay
Width
LeadE
TraiE
The TIMING Screen in an Agilent 81104A with qty 2 of Agilent
81105A
ON Normal Normal ON
Seperate Outputs
High
Low
50Ω into 50.0
Per
0ps
100.0ns
3.00ns
=LeadE
TIMING PATTERNLEVELSMODE/TRG
+2.50V
+0.0mV
Ω
2
Delay 0ps
Width
LeadE
TraiE
100.0ns
3.00ns
=LeadE
21
High +2.50V
Low +0.0mV
50Ω into 50.0
Ω
MODIFY
*Period
Frequency
MODIFY
Set TTL
*High-Low
Offs-Ampl
Set ECL
TIMING PATTERNLEVELSMODE/TRG
The LEVELS Screen in an Agilent 81104A with qty 2 of Agilent
81105A
8 Agilent 81104A/’05A Performance Test
Instrument Serial Numbers
You will need to write the serial numbers of the instrument at the
top of the Test Reports. These can be found as follows:
Press HELP, [SERIAL #]
The Agilent 81104A display lists the instrument's products and
serial number.
The display on your instrument should look similar to this:
Agilent 81104A/’05A Performance Test
FRAME :
Serial No :
81104A 80 MHz
DE38700132
OUTPUTS
Ch1-Bd. :
Ch2-Bd. :
81105A
81105A
The serial number given for the FRAME applies to the Mainframe,
the Power Supply, the Microprocessor Board, and the Timing
Board. The number(s) available of the Output Channel(s) applies
to the installed numbers of outputs and Model Number.
Agilent 81104A/’05A Performance Test 9
Agilent 81104A/’05A Performance Test
Initial Setup of the Agilent 81104A
In the majority of these tests the initial setting up of the instrument
is identical. Therefore, it is described once here, and then referredto where appropriate. In cases where the initial setup differs, an
illustration of the settings is shown.
Set up the Agilent 81104A as follows:
1. Select [MODE/TRG]
• CONTINUOUS PULSES
• Single-Pulses at Out 1 (plus Single-Pulses at Out 2, if
second channel is installed
• Pulse-Period:internal Osc
2. If a second output channel is installed, select MORE [CONFIG]
screen and set up as follows:
GPIB Address: 10
Perform: Timing Calibration
Group Params by: OUTPUT 1 / 2
PLL-Ref : Internal
TRG-LEV CONFIGMEMCARDLIMITS
CONFIG Screen, Parameters grouped by OUTPUT
10 Agilent 81104A/’05A Performance Test
MODIFY
Selftest
*Calibrate
Agilent 81104A/’05A Performance Test
NOTE: Set-ups are given in all the tests for [OUTPUT 1] and [OUTPUT 2].
If you are testing a single channel instrument set up the [OUTPUT]
screen with the settings given for [OUTPUT 1].
Agilent 81104A/’05A Performance Test 11
Agilent 81104A/’05A Performance Test
Test 1: Period (PLL not active)
Test Specifications
Range 12.5 ns to 999.5 s
Resolution 3.5 digits, best case 5 ps
Accuracy +5%
Equipment Needed
Counter
Cable, 50 Ω, coaxial, BNC
Procedure
1. Connect the Agilent 81104A to the Counter as shown:
81104A UNDER TEST
80 MHz
81104A
S
Agilent
PULSE-/ PATTERN GENERATOR
TRIG OUT
5334B Counter
Connecting the Agilent 81104A to the Counter
2. Set up the Agilent 81104A as described in "Initial Setup of the
Agilent 81104A"
12 Agilent 81104A/’05A Performance Test
INPUT A C
Agilent 81104A/’05A Performance Test
On the Agilent 81104A press MORE and set up [OUTPUT 1] and
[OUTPUT 2] pages as shown in the following illustrations:
Per Normal ON
Delay
DtyCyc
LeadE
TraiE
Configuring Output 1
Per Normal OFF
Delay
DtyCyc
LeadE
TraiE
12.50ns
0ps
50.00%
3.00ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
12.50ns
0ps
50.00%
3.00ns
=LeadE
Offset
Amplit
50Ω into 50.0
Offset
Amplit
50Ω into 50.0
Separate Out2
+0.0mV
1.00V
1
Ω
2
+0.0mV
1.00V
Ω
MODIFY
12.50
ns
MODIFY
12.50
ns
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Configuring Output 2
Agilent 81104A/’05A Performance Test 13
Agilent 81104A/’05A Performance Test
NOTE: When you are testing instruments with 2 output channels it is
necessary to:
a. Configure both channels.
b. For Period Test you can switch OFF the channels that are not
being tested.
3. Set the Counter to:
FUNCTION Period A
INPUT A
SENSE
50 Ω
Οn
4. Check the Agilent 81104A period at the following settings:
Period Acceptable Range TR entry
12.50 ns
50.00 ns
99.90 ns
100 ns
500 ns
1 µs
500 µs
500 ms
11.875 ns to 13.125 ns
47.5 ns to 52.5 ns
94.905 ns to 104.895 ns
95 ns to 105 ns
475 ns to 525 ns
950 ns to 1050 ns
475µs to 525 µs
475 ms to 525 ms
1 - 1
1 - 2
1 - 3
1 - 4
1 - 5
1 - 6
1 - 7
1 - 8
14 Agilent 81104A/’05A Performance Test
Agilent 81104A/’05A Performance Test
Test 2: PLL Period
NOTE: This test is only performed if PLL is switched on.
Test Specifications
Range 12.5 ns to 999.5 s
Resolution 4 digits, best case 1 ps
Accuracy + 0.01%
Equipment Needed
Counter Agilent 53132A
Cable, 50 Ω, coaxial, BNC
NOTE: The Agilent 53132A counter is used in frequency mode to meet
the MIL CAL A uncertainty requirements for TAR (Test
Accuracy Ratio) > 4:1.
Procedure
Connect the Agilent 81104A to the counter as follows:
81104A UNDER TEST
80 MHz
81104A
S
Agilent
PULSE-/ PATTERN GENERATOR
TRIG OUT
53132A Counter
CHANNEL 1 2
Connecting Agilent 81104A to the Counter
Agilent 81104A/’05A Performance Test 15
3
Agilent 81104A/’05A Performance Test
5. Set up the Agilent 81104A as described in "Initial Setup of the
Agilent 81104A"
6. Select the [MODE/TRG] screen on the Agilent 81104A and set
up as follows:
CONTINUOUS PULSES
Single-Pulses at Out1
Single-Pulses at Out2
Pulse-Period: internal PLL
TIMING PATTERNLEVELSMODE/TRG
MODIFY
int. OSC
*int. PLL
CLK-IN
The MODE/TRG Screen Setup
7. On the Agilent 81104A set up [OUTPUT 1] and [OUTPUT 2]
pages as shown in the test before!
16 Agilent 81104A/’05A Performance Test
Agilent 81104A/’05A Performance Test
NOTE: When you are testing instruments with 2 output channels it is
necessary to:
a. Configure both channels.
b. For Period Test you can switch OFF the channels that are not
being tested.
8. Set the Counter to measure the frequency at the choosen input
1 / 3
9. Check the Agilent 81104A PLL pulse period at the following
settings:
Period Frequency Acceptable Range TR Entry
12.5 ns
20.00 ns
50.00 ns
100 ns
500 ns
1 µs
50 µs
5 ms
500 ms
5 s
80.000MHz
50 MHz
20 MHz
10 MHz
2 MHz
1 MHz
20 kHz
200 Hz
2 Hz
0.2 Hz
79.002 MHz to 80.008 MHz
49.995 MHz to 50.005 MHz
19.998 MHz to 20.002 MHz
9.999 MHz to 10.001 MHz
1.9998 MHz to 2.0002 MHz
999.9 kHz to 1.0001 MHz
9.998 kHz to 20.002 kHz
199.980 Hz to 200.020 Hz
1.9998 Hz to 2.0002 Hz
0.19998 Hz to 0.20002 Hz
2 - 1
2 - 2
2 - 3
2 - 4
2 - 5
2 - 6
2 - 7
2 - 8
2 - 9
2 - 10
Agilent 81104A/’05A Performance Test 17
Agilent 81104A/’05A Performance Test
Test 3: Width
Test Specifications
Range 6.25 ns to (period - 6.25 ns)
Resolution 3.5 digits, best case 5 ps
Accuracy + 5% + 250 ps
Equipment Needed
Digitizing Oscilloscope with Accessories
Counter
Cable, 50 Ω, coaxial, BNC
Procedure
1. Connect Agilent 81104A to the Scope as shown:
81104A UNDER TEST
81104A
80 MHz
S
Agilent
PULSE-/ PATTERN GENERATOR
TRIG OUT
OUT 1
54121T Frontend
INPUT 1 2 3 4 TRIG
Connecting Agilent 81104A to the Scope
2. Set up the Agilent 81104A as described in "Initial Setup of the
Agilent 81104A"
18 Agilent 81104A/’05A Performance Test
6 dB
Attenuator
with SMA/BNC
Adapter
20 dB
Agilent 81104A/’05A Performance Test
3. On the Agilent 81104A press MORE and set up [OUTPUT 1]
and [OUTPUT 2] pages as shown in the following illustrations:
Per 200 ns Normal ON
Delay
LeadE
TraiE
Configuring Output Screen 1
Per 200 ns Normal OFF
Delay
Width
LeadE
TraiE
0ps
100.0nsWidth
3.00ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
0ps
6.250ns
3.00ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Offset
Amplit
50Ω into 50.0
Offset
Amplit
50Ω into 50.0
Separate Out2
1
+0.0mV
1.00V
Ω
2
+0.0mV
1.00V
Ω
MODIFY
100.0
ns
MODIFY
6.250
ns
Configuring Output Screen 2
Agilent 81104A/’05A Performance Test 19
Agilent 81104A/’05A Performance Test
NOTE: When you are testing instruments with 2 output channels it is
necessary to:
a. Configure both channels.
b. Switch OFF the channel that is not being tested.
If you then test the other channel:
c. Switch ON the channel you are testing, and switch OFF the
other channel.
4. 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 turn the voltage markers On
• Set the preset levels to 50% -50% and press AUTO LEVEL SET
• Select the delta t menu and turn the time markers ON
• Set START ON EDGE = POS 1 and STOP ON EDGE = NEG1
5. Change the oscilloscope timebase to 1 ns/div
6. Change the Agilent 81104A Ch-1 Width to 6.250 ns
7. Center the pulse in the Scope display
8. Press the PRECISE EDGE FIND key for each new Width setting
9. Check the Agilent 81104A pulse width at the following settings:
20 Agilent 81104A/’05A Performance Test
Agilent 81104A/’05A Performance Test
Oscilloscope
Timebase
2 ns/div
2 ns/div
10 ns/div
20 ns/
100 ns
Period Width Acceptable Range TR Entry
200 ns
200 ns
200 ns
1 µs
1 µs
6.25 ns
10.00 ns
50.00 ns
100.0 ns
500.0 ns
5.6875 ns to 6.8125 ns
9.250 ns to 10.750 ns
47.25 ns to 52.75 ns
94.75 ns to 105.25 ns
474.75 ns to 525.25 ns
10. Connect the Agilent 81104A to the Counter as shown:
81104A UNDER TEST
80 MHz
81104A
S
Agilent
PULSE-/ PATTERN GENERATOR
OUT 1
5334B Counter
INPUT A
3 - 1
3 - 2
3 - 3
3 - 4
3 - 5
Connecting Agilent 81104A to the Counter
11. Set the Counter to:
FUNCTION
SENSE
INPUT A
COM A
INPUT B
Agilent 81104A/’05A Performance Test 21
TI A→ B
On
50 Ω
On
50 Ω, negative slope
Agilent 81104A/’05A Performance Test
12. Check the Agilent 81104A width at the following settings:
Period Width Acceptable Range TR Entry
100 µs
10 ms
999 ms
50 µs
5 ms
500ms
47.5 µs to 52.5 µs
4.75 ms to 5.25ms
475 ms to 525 ms
3 - 6
3 - 7
3 - 8
NOTE: Repeat the entire test for the second channel, if it is installed
22 Agilent 81104A/’05A Performance Test
Test 4: Delay
Test Specifications
Range Fixed typical Delay of
Agilent 81104A/’05A Performance Test
EXT INPUT to TRIGGER OUT 12 ns
TRIGGER OUT to OUTPUT 1/2 15 ns
Variable Delay:
0 ns to (period - 12.5 ns)
Resolution
Accuracy
Equipment Needed
Digitzing Oscilloscope with Accessories
Pulse Generator
Counter
Cable, 50 Ω, coaxial, BNC
Procedure
Connect Agilent 81104A to the Scope as shown:
3.5 digits, best case 5 ps
±5% ±0.5 ns
Agilent 81104A/’05A Performance Test 23
Agilent 81104A/’05A Performance Test
81104A UNDER TEST
80 MHz
81104A
S
Agilent
PULSE-/ PATTERN GENERATOR
8110A Pulse Generator
TRIG
OUT 1
OUT
EXT.
TRIG
OUT 1
OUT
IN
54121T Frontend
INPUT 1 2 3 4 TRIG
Attenuator
3 x 20 dB
with SMA/BNC
Adaptor
Connecting Agilent 81104A to the Scope
13. Set up the Agilent 81104A as described in "Initial Setup of the
Agilent 81104A"
14. Set the Pulse Generator to:
Period
Width
Amplitude
Offset
Output
1 µs
100 ns
1 V
+1.0 V
Enable
15. Select the [MODE/TRG] screen on the Agilent 81104A and set
up as follows:
24 Agilent 81104A/’05A Performance Test
Agilent 81104A/’05A Performance Test
PULSES
TRIGGERED
Single-Pulses at Out1
Single-Pulses at Out2
Trg'd by: EXT-IN
TIMING PATTERNLEVELSMODE/TRG
MODIFY
Continous
*Triggered
Gated
Ext-Width
The TRG MODE Screen Setup
16. On the Agilent 81104A press MORE and set up [TRIG-LEV]
page as shown:
+1.0V 50
EXT-IN: Threshold
CLK-IN: Threshold +1.0V 50
TRIGGER-OUT: TTL
STROBE-OUT : TTL
TRG-LEV CONFIGMEMCARDLIMITS
The TRG-LEV Screen Setup
Agilent 81104A/’05A Performance Test 25
Ω
Ω
Set TTL
Set ECL
*Voltage
MODIFY
Agilent 81104A/’05A Performance Test
17. On the Agilent 81104A set up [OUTPUT 1] and [OUTPUT 2]
pages as shown in the following illustrations:
Per -------- Normal ON
Delay
Width
LeadE
TraiE
Configuring Output Screen 1
Per -------- Normal ON
Delay
Width
LeadE
TraiE
0ps
100ns
3.00ns
=LeadE
0ps
100ns
3.00ns
=LeadE
Offset
Amplit
50Ω into 50.0
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Offset
Amplit
50Ω into 50.0
1
+0.0mV
1.00V
Ω
1
+0.0mV
1.00V
Ω
MODIFY
0
ps
MODIFY
0
ps
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Configuring Output Screen 2
26 Agilent 81104A/’05A Performance Test
Agilent 81104A/’05A Performance Test
NOTE: When you are testing instruments with 2 output channels it is
necessary to:
a. Configure both channels.
b. Switch OFF the channel that is not being tested
If you then test the other channel:
c. Switch ON the channel you are testing, and switch OFF the
other channel.
18. Set the Digitizing Oscilloscope Agilent 54121T:
• Press AUTOSCALE
• Set timebase to TIME/DIV = 10 ns/div
• Center the positive-going edges of the two signals
• Select the Display menu and set the screen function to single; set the
number of averages to 32
• Select the Delta V menu and turn the voltage markers ON and assign
marker 1 to channel 3 and marker 2 to channel 4
• Set Preset levels to 50% - 50% and press AUTO LEVEL SET
• Select the Delta t menu and turn the time markers ON
• Set START ON EDGE= POS1 and STOP ON EDGE= POS 1
• Press the PRECISE EDGE FIND key
19. Check the Agilent 81104A delay at the following settings:
Agilent 81104A/’05A Performance Test 27
Agilent 81104A/’05A Performance Test
NOTE: Record the value of the fixed delay and subtract it from the other
readings.
Oscilloscope Timebase Delay Acceptable Range TR Entry
10 ns/div
10 ns/div
20 ns/div
20 ns/div
50 ns/div
200 ns/div
0 ps
5.000 ns
10.00 ns
50.00 ns
100.0 ns
500.0 ns
fixed Delay of TRIG OUT to OUT 1/2:
15 ns typ.
4.25 ns to 5.75 ns
9.000 ns to 11.00 ns
47.00 ns to 53.00 ns
94.50 ns to 105.50 ns
474.50 ns to 525.50 ns
4 - 1
4 - 2
4 - 3
4 - 4
4 - 5
4 - 6
20. Connect the Agilent 81104A to the Counter as follows:
81104A UNDER TEST
80 MHz
81104A
S
Agilent
PULSE-/ PATTERN GENERATOR
TRIG OUT
OUT 1
5334B Counter
INPUT A INPUT B
Connecting Agilent 81104A to the Counter
21. Set Agilent 81104A to Continuous-Pulses on the
MODE/TRG screen
22. Set the Counter to:
28 Agilent 81104A/’05A Performance Test
Agilent 81104A/’05A Performance Test
FUNCTION TI
SENSE
INPUT A
INPUT B
A → B
On
50 Ω
50 Ω
23. Check the Agilent 81104A delay at the following settings:
NOTE: Subtract the fixed delay from the other readings
Period Delay Acceptable Range TR Entry
100 µs
10 ms
999 ms
NOTE: Repeat the entire test for the second channel, if it is installed.
50 µs
5 ms
500ms
47.5 µs to 52.5 µs
4.75 ms to 52.5ms
475 ms to 525 ms
4 - 7
4 - 8
4 - 9
Agilent 81104A/’05A Performance Test 29
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