5
5Agilent 81110A/’12A
Performance Test
1
Agilent 81110A/’12A Performance Test
Introduction
Use the tests in this chapter if you want to check that the Agilent
81110A Pulse Generator Frame with the Agilent 81112A 330
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 Te st 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 81110A/’12A Performance Test
Agilent 81110A/’12A 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 81110A/’12A Performance Test 3
Agilent 81110A/’12A Performance Test
Recommended Test Equipment and Accessories
The following tables list the recommended test equipment you
need to perform all the tests i n 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
Digitizing Oscilloscopes Accessories
Attenuators
Power Splitter
SMA/SMA (m-m) adaptor
SMA/BNC Adaptor
SMA Cable
Agilent 54121T 20 GHz, 10 bit vertical resoluti on, H istogram
Agilent 54751A
Agilent 5334B
#010, 030
#001/010, 030
Accessories Model Critical Specifications
20 GHz, 15 bit vertical resolution, Histogra m
Period and Time Interval measurements
Oven Osci, 1.3 GHz C-Channel
Frequency measurements > 150 MHz
High-Stability Timebase, 3 GHz Channel
33340C#020
33340C#006
11667B
1250-1159
1250-1700
8120-4948
20 dB
6 dB
4 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
Accessories Model Critical Specifications
50 Ω Feedthrough Termination 10100C
See Figure
Adapter 1251-2277 BNC to Banana
Cable Assemblies, BNC 8120-1839
Torque Wrench 8710-1582 5/16 in, 5 lb-in (56 Ncm)
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 81110A/’12A Performance Test 5
Agilent 81110A/’12A 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 = 53.6
2. R2 = 200
Ω, 1%, 10 W; Part Number: 0699-0146.
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 81110A/’12A Performance Test
Getting Started
The AgilentAgilent 81110A 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 81110A 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 81110A/’12A Performance Test
Per 1.000
Delay
Width
LeadE
TraiE
The OUTPUT Screen in a Standard Agilent 81110A
Agilent 81110A/’12A Performance Test 7
µµµµ
s Normal
0ps
100.0ns
0.80ns
=LeadE
OUTPUT PATTERNLIMITSMODE/TRG
Offset
Amplit
OFF
OFF
+0.0mV
1.00V
1
*OFF norm
MODIFY
ON out
Agilent 81110A/’12A Performance Test
OFF 1.000
1
OFF OFF
Delay
Width
LeadE
TraiE
The TIMING Screen in an Agilent 81110A with qty 2 of Agilent
81112A
ON Normal Normal ON
OFF OFF
High
Low
Per
0ps
100.0ns
0.80ns
=LeadE
TIMING PATTERNLEVELSMODE/TRG
+2.50V
+0.0mV
µµµµ
s OFF
2
Delay 0ps
Width
LeadE
TraiE
100.0ns
0.80ns
=LeadE
21
Offset +0.0mV
Amplit 1.00V
MODIFY
*Period
Frequency
MODIFY
Set TTL
*High-Low
Offs-Ampl
Set ECL
TIMING PATTERNLEVELSMODE/TRG
The LEVELS Screen in an Agilent 81110A with qty 2 of Agilent
81112A
8 Agilent 81110A/’12A 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 81110A display lists the instrument's products and
serial number.
The display on your instrument should look similar to this:
Agilent 81110A/’12A Performance Test
FRAME :
Serial No :
81110A 330 MHz
DE38700136
OUTPUTS
Ch1-Bd. :
Ch2-Bd. :
81112A
81112A
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 81110A/’12A Performance Test 9
Agilent 81110A/’12A Performance Test
Initial Setup of the Agilent 81110A
In the majority of these tests the in itial settin g up of the instrume nt
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 81110A 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: OUTPUT1/2
PLL-Ref : Internal
TRG-LEV CONFIGMEMCARDLIMITS
CONFIG Screen, Parameters grouped by OUTPUT
10 Agilent 81110A/’12A Performance Test
MODIFY
Tim/Lev
*Out 1/2
Agilent 81110A/’12A Performance Test
NOTE: Set-ups are give n in all the tests for [OUTPUT 1] and [ OUTPUT 2].
If you are testing a sing le channel instrument set up the [
OUTPUT]
screen with the settings given for [OUTPUT 1].
Agilent 81110A/’12A Performance Test 11
Agilent 81110A/’12A Performance Test
Test 1: Period (PLL not active)
Test Specifications
Range 3.03 ns to 999.5 s
Resolution 3.5 digits, best case 5 ps
Accuracy +3%
typical +0.5% after selfcal
Equipment Needed
Counter
Cable, 50 Ω, coaxial, BNC
Procedure
1. Connect the Agilent 81110A to the Counter as shown:
81110A UNDER TEST
81110A
330 MHz
5555
!"#$%&'
PULSE-/ PATTERN GENERATOR
TRIG OUT
5334B Counter
Connecting the Agilent 81110A to the Counter
2. Set up the Agilent 81110A as described in "Initial Setup of the
Agilent 81110A"
12 Agilent 81110A/’12A Performance Test
INPUT A C
Agilent 81110A/’12A Performance Test
On the Agilent 81110A press MORE and set up [OUTPUT 1] and
[OUTPUT 2] pages as shown in the following illustrations:
Per Normal ON
3.030ns
Delay
DtyCyc
LeadE
TraiE
Configuring Output 1
0ps
50.00%
0.80ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Offset
Amplit
OFF
+0.0mV
1.00V
1
MODIFY
3.030
ns
Per Normal OFF
3.030ns
Delay
DtyCyc
LeadE
TraiE
Configuring Output 2
Agilent 81110A/’12A Performance Test 13
0ps
50.00%
0.80ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Offset
Amplit
OFF
+0.0mV
1.00V
2
3.030
MODIFY
ns
Agilent 81110A/’12A 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 / Freq C
INPUT A
SENSE
50 Ω
Οn
4. Check the Agilent 81110A period at the following settings:
Period Acceptable Range TR entry
3.030 ns
6.060 n
10.00 ns
50.00 ns
99.90 ns
100 ns
500 ns
1 µs
500 µs
500 ms
without selfcal!
2.9391 ns to 3.1209 ns
5.878 ns to 6.242 n
9.7 ns to 10.3 ns
48.5 ns to 51.5 ns
96.903 ns to 102.897 ns
97 ns to 103 ns
485 ns to 515 ns
970 ns to 1030 ns
485µs to 515 µs
485 ms to 515 ms
1 - 1
1 - 2
1 - 3
1 - 4
1 - 5
1 - 6
1 - 7
1 - 8
1 - 9
1 - 10
14 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
Test 2: PLL Period
NOTE: This test is only perfor med if PLL is switched on.
Test Specifications
Range 3.03 ns to 999.5 s
Resolution 3.5 digits, best case 5 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 81110A to the counter as follows:
81110A UNDER TEST
330 MHz
81110A
5555
!"#$%&'
PULSE-/ PATTERN GENERATOR
TRIG OUT
53132A Counter
CHANNEL 1 2
Connecting Agilent 81110A to the Counter
Agilent 81110A/’12A Performance Test 15
3
Agilent 81110A/’12A Performance Test
5. Set up the Agilent 81110A as described in "Initial Setup of the
Agilent 81110A"
6. Select the [MODE/TRG] screen on the Agilent 81110A 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 81110A set up [OUTPUT 1] and [OUTPUT 2]
pages as shown in the test before!
16 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A 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 81110A PLL pulse period at the following
settings:
Period Frequency Acceptable Range TR Entry
3.030 ns
10.00 ns
50.00 ns
100 ns
500 ns
1 µs
50 µs
5 ms
500 ms
5 s
330.000MHz
100 MHz
20 MHz
10 MHz
2 MHz
1 MHz
20 kHz|
200 Hz
2 Hz
0.2 Hz
329.9670 MHz to 330.0330 MHz
99.990 MHz to 100.010 MHz
19.9980 MHz to 20.0020 MHz
9.9990 MHz to 10.0010 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 81110A/’12A Performance Test 17
Agilent 81110A/’12A Performance Test
Test 3: Width
Test Specifications
Range 1.515 ns to (period - 1.515 ns)
Resolution 3.5 digits, best case 5 ps
Accuracy + 3% + 250 ps
typical + 0.5% + 250 ps after selfcal
Equipment Needed
Digitizing Oscilloscope with Accessories
Counter
Cable, 50 Ω, coaxial, BNC
Procedure
1. Connect Agilent 81110A to the Scope as shown:
81110A UNDER TEST
330 MHz
81110A
5555
!"#$%&'
PULSE-/ PATTERN GENERATOR
TRIG OUT
OUT 1
INPUT 1 2 3 4 TRIG
Connecting Agilent 81110A to the Scope
2. Set up the Agilent 81110A as described in "Initial Setup of the
Agilent 81110A"
18 Agilent 81110A/’12A Performance Test
54121T Frontend
6 dB
Attenuator
with SMA/BNC
Adapter
Agilent 81110A/’12A Performance Test
3. On the Agilent 81110A press MORE and set up [OUTPUT 1]
and [OUTPUT 2] pages as shown in the following illustrations:
Per 200 ns Normal ON
Delay
Width 100.0ns
LeadE
TraiE
Configuring Output Screen 1
Per 200 ns Normal OFF
Delay
Width
LeadE
TraiE
0ps
0.80ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
0ps
1.515ns
0.80ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Offset
Amplit
Offset
Amplit
OFF
+0.0mV
1.00V
OFF
+0.0mV
1.00V
1
100.0
2
1.515
MODIFY
ns
MODIFY
ns
Configuring Output Screen 2
Agilent 81110A/’12A Performance Test 19
Agilent 81110A/’12A 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 th e 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 81110A Ch-1 Width to 1.515 ns
7. Center the pulse in the Scope display
8. Press the PRECISE EDGE FIND
key for each new Width set-
ting
9. Check the Agilent 81110A pulse width at the following settings:
20 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
Oscilloscope
Timebase
1 ns/div
1 ns/div
2 ns/div
10 ns/div
20 ns/
100 ns
Period Width Acceptable Range TR Entry
without selfcal!
200 ns
200 ns
200 ns
200 ns
1 µs
1 µs
1.515 ns
6.060 ns
10.00 ns
50.00 ns
100.0 ns
500.0 ns
1.22455 ns to 1.80545 ns
5.528 ns to 6.492 ns
9.450 ns to 10.55 ns
48.25 ns to 51.75 ns
96.75 ns to 103.25 ns
484.75 ns to 515.25 ns
10. Connect the Agilent 81110A to the Counter as shown:
81110A UNDER TEST
81110A
330 MHz
5555
!"#$%&'
PULSE-/ PATTERN GENERATOR
OUT 1
5334B Counter
INPUT A
Connecting Agilent 81110A to the Counter
3 - 1
3 - 2
3 - 3
3 - 4
3 - 5
3 - 6
11. Set the Counter to:
FUNCTION
SENSE
INPUT A
COM A
INPUT B
Agilent 81110A/’12A Performance Test 21
TI A→ B
On
50 Ω
On
50 Ω, negative slope
Agilent 81110A/’12A Performance Test
12. Check the Agilent 81110A width at the following settings:
Period Width Acceptable Range TR Entry
100 µs
10 ms
999 ms
50 µs
5 ms
500ms
48.5 µs to 51.5 µs
4.85 ms to 515 ms
485 ms to 515 ms
3 - 7
3 - 8
3 - 9
NOTE: Repeat the entire test for the second channel, if it is installed
22 Agilent 81110A/’12A Performance Test
Test 4: Delay
Test Specifications
Range Fixed typical Delay of
Agilent 81110A/’12A Performance Test
EXT INPUT to TRIGGER OUT 12 ns
TRIGGER OUT to OUTPUT 1/2 10 ns
Variable Delay:
0 ns to (period - 3.03 ns)
Resolution
Accuracy
Equipment Needed
Digitzing Oscilloscope with Accessories
Pulse Generator
Counter
Cable, 50 Ω, coaxial, BNC
Procedure
Connect Agilent 81110A to the Scope as shown:
3.5 digits, best case 5 ps
±3% ±0.5 ns
typical ±0.5% ±0.5 ns after selfcal
Agilent 81110A/’12A Performance Test 23
Agilent 81110A/’12A Performance Test
81110A UNDER TEST
330 MHz
81110A
5555
!"#$%&'
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 81110A to the Scope
13. Set up the Agilent 81110A as described in "Initial Setup of the
Agilent 81110A"
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 81110A and set
up as follows:
24 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
TRIGGERED
Trg'd by: EXT-IN
PULSES
Single-Pulses at Out1
Single-Pulses at Out2
TIMING PATTERNLEVELSMODE/TRG
MODIFY
Continous
*Triggered
Gated
Ext-Width
The TRG MODE Screen Setup
16. On the Agilent 81110A press MORE and set up [TRIG-LEV]
page as shown:
EXT-IN: Threshold
CLK-IN: Threshold +1.0V 50
TRIGGER-OUT: TTL
STROBE-OUT : TTL
+1.0V 50
ΩΩΩΩ
ΩΩΩΩ
Set TTL
Set ECL
*Voltage
MODIFY
TRG-LEV CONFIGMEMCARDLIMITS
The TRG-LEV Screen Setup
Agilent 81110A/’12A Performance Test 25
Agilent 81110A/’12A Performance Test
17. On the Agilent 81110A 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 OFF
Delay
Width
LeadE
TraiE
100ns
0.80ns
=LeadE
100ns
0.80ns
=LeadE
0ps
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
0ps
Offset
Amplit
Offset
Amplit
OFF
+0.0mV
1.00V
OFF
+0.0mV
1.00V
1
2
MODIFY
0
ps
MODIFY
0
ps
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Configuring Output Screen 2
26 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A 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 men u and tu rn the voltag e marker s ON an d assi gn
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 81110A delay at the following settings:
Agilent 81110A/’12A Performance Test 27
Agilent 81110A/’12A 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
without selfcal!
5.000 ns
10.00 ns
50.00 ns
100.0 ns
500.0 ns
fixed Delay of TRIG OUT to OUT 1/2:
10 ns typ.
4.35 ns to 5.65 ns
9.200 ns to 10.80 ns
48.00 ns to 52.00 ns
96.50 ns to 103.50 ns
484.50 ns to 515.50 ns
4 - 1
4 - 2
4 - 3
4 - 4
4 - 5
4 - 6
20. Connect the Agilent 81110A to the Counter as follows:
81110A UNDER TEST
81110A
330 MHz
5555
!"#$%&'
PULSE-/ PATTERN GENERATOR
TRIG OUT
OUT 1
5334B Counter
INPUT A INPUT B
Connecting Agilent 81110A to the Counter
21. Set Agilent 81110A to Continuous-Pulses on the
MODE/TRG screen
28 Agilent 81110A/’12A Performance Test
22. Set the Counter to:
Agilent 81110A/’12A Performance Test
FUNCTION TI
SENSE
INPUT A
INPUT B
A → B
On
50 Ω
50 Ω
23. Check the Agilent 81110A 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
48.5 µs to 51.5 µs
4.85 ms to 5.15ms
485 ms to 515 ms
4 - 7
4 - 8
4 - 9
Agilent 81110A/’12A Performance Test 29
Agilent 81110A/’12A Performance Test
Test 5: Double Pulse Delay
Test Specifications
Range 3.015 ns to
(period - width - 1.5 ns)
Resolution
Accuracy
Equipment Needed
Digitizing Oscilloscope with Accessories
Counter
Cable, 50 Ω, coaxial, BNC
Procedure
1. Connect Agilent 81110A to the Scope as shown:
81110A UNDER TEST
5555
!"#$%&'
330 MHz
81110A
PULSE-/ PATTERN GENERATOR
TRIG OUT
OUT 1
3.5 digits, best case 5 ps
± 3% ± 150 ps
typical ± 0.5% ± 150 ps
54121T Frontend
INPUT 1 2 3 4 TRIG
6 dB
Attenuator
with SMA/BNC
Adapter
Connecting Agilent 81110A to the Scope
30 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
2. Set up the Agilent 81110A as described in "Initial Setup of the
Agilent 81110A"
3. Select the [MODE/TRG] screen on the Agilent 81110A and set
up Output 1 and Output 2 as follows:
CONTINUOUS PULSES
MODIFY
Double-Pulses at Out1
Douple-Pulses at Out2
Single
* Double
Pulse-Period: internal Osc
TIMING PATTERNLEVELSMODE/TRG
The MODE/TRG Screen Setup
4. On the Agilent 81110A set up [OUTPUT 1] and [OUTPUT 2]
pages as shown in the following illustrations:
Agilent 81110A/’12A Performance Test 31
Agilent 81110A/’12A Performance Test
Per Normal ON
Width
LeadE
TraiE
Configuring Output Screen 1
Per Normal OFF
Width
LeadE
TraiE
200.0ns
3.015nsDblDel
1.515ns
0.80ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
200.0ns
3.015nsDblDel
1.515ns
0.80ns
=LeadE
Offset
Amplit
Offset
Amplit
OFF
+0.0mV
1.00V
OFF
+0.0mV
1.00V
1
3.015
2
3.015
MODIFY
ns
MODIFY
ns
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Configuring Output Screen 2
32 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A 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.
5. Set the Digitizing Oscilloscope Agilent 54121T:
• Press AUTOSCALE
• Center the double pulse signal
• Select th e Display menu and set the Number of Averages to 32
• Select the D elta V menu and turn the V oltage mark ers On
• Set Preset Levels = 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 = POS2
6. Press the PRECISE EDGE FIND key for each new Double
Delay setting
7. Check the Agilent 81110A double delay at the following settings:
Agilent 81110A/’12A Performance Test 33
Agilent 81110A/’12A Performance Test
Oscilloscope Timebase Double Delay Acceptable Range TR Entry
2 ns/div
2 ns/div
10 ns/div
20 ns/div
without selfcal!
3.015 ns
10.00 ns
50.00 ns
100.0 ns
2.77455 ns to 3.25545 ns
9.550 ns to 10.45 ns
48.35 ns to 51.65 ns
96.85 ns to 103.15 ns
5 - 1
5 - 2
5 - 3
5 - 4
8. Connect the Agilent 81110A to the Counter as shown:
81110A UNDER TEST
81110A
330 MHz
5555
!"#$%&'
PULSE-/ PATTERN GENERATOR
TRIG OUT
OUT 1
5334B Counter
INPUT A ARM
Connecting Agilent 81110A to the Counter
9. Set the Counter to:
FUNCTION
INPUT A
SENSE
Period A
50 Ω
On
( EXT ARM
SELECT
a. Start (ST): leading edge
b. Stop (SP): trailing edge )
10. Set up the Agilent 81110A as described in "Initial Setup of the
Agilent 81110A"
34 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
11. Select the[MODE/TRG]screen on the Agilent 81110A and set up
as follows;
TRIGGERED
Trg'd by: MANKey
The MODE/TRG Screen Setup
12. On the Agilent 81110A set up [OUTPUT 1] and [OUTPUT 2]
pages as shown in the following illustrations:
Per -------- Normal ON
DblDel
Width
LeadE
TraiE
PULSES
Double-Pulses at Out1
Double-Pulses at Out2
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
OFF
500.0ms
20.00ns
0.80ns
=LeadE
Offset
Amplit
+0.0mV
1.00V
*MAN Key
EXT INPUT
PLL
1
500.0
MODIFY
MODIFY
ms
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Agilent 81110A/’12A Performance Test 35
Agilent 81110A/’12A Performance Test
Configuring Output Screen 1
Per -------- Normal OFF
OFF
DblDel
Width
LeadE
TraiE
Configuring Output Screen 2
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:
100.0ns
20.00ns
0.80ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Offset
Amplit
2
+0.0mV
1.00V
MODIFY
100.0
ns
c. Switch ON the channel you are testing, and switch OFF the
other channel.
13. Check the Agilent 81 110A double pulse delay at the following
settings:
Press MAN to check each new setting!
36 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
Double Delay Acceptable Range TR Entry
after selfcal!
500 ms
1 s
485 ms to 515 ms
970.00 ms to 1030.00 ms
5 -5
5 - 6
NOTE: Repeat the entire test for the second channel, if it is installed.
Agilent 81110A/’12A Performance Test 37
Agilent 81110A/’12A Performance Test
Test 6: Jitter
The following tests are required:
1. Period Jitter
a. Internal Oscillator
b. Internal PLL
2. Width Jitter
3. Delay Jitter
Test 6.1a: Period Jitter, Internal Oscillator
Test Specifications
RMS-Jitter 0.01% + 15 ps
Equipment Needed
Digitizing Oscilloscope with Accessories
Delay Line (22 ns)
Power Splitter
Cable, 50 Ω, coaxial, BNC
Cable, SMA
Procedure
1. Connect Agilent 81110A to the Scope as shown:
38 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
81110A UNDER TEST
330 MHz
81110A
5555
!"#$%&'
PULSE-/ PATTERN GENERATOR
BNC - SMA
Adapter
OUT 1
INPUT 1
54121T Frontend
SMA - SMA
Adapter
SMA Cable
2
SMA Cable
54008A Delay Line
4
3
INPUT
TRIG
POWER SPLITTER
OUTPUT
11667B
Equipment Set-up for Jitter Test
2. Set up the Agilent 81110A as described in "Initial Setup of the
Agilent 81110A"
3. On the Agilent 81110A set up [OUTPUT 1] and [OUTPUT 2]
pages as shown in the following illustrations:
Per Normal ON
Delay
Width
LeadE
TraiE
50.00ns
0ps
25.00ns
0.80ns
=LeadE
Offset
Amplit
OFF
+500mV
1.00V
1
MODIFY
50.00
ns
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Configuring Output Screen 1
Agilent 81110A/’12A Performance Test 39
Agilent 81110A/’12A Performance Test
Per Normal OFF
50.00ns
OFF
Delay
Width
LeadE
TraiE
Configuring Output Screen 2
NOTE: When you are testing instruments with 2 output channels it is
necessary to:
0ps
25.00ns
0.80ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Offset
Amplit
2
+500mV
1.00V
MODIFY
50.00
ns
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 th e Display menu and set the Number of Averages to 64
• Select the Channel menu and set the Attenuation factor of channel 2
to 2
40 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
• Set the VOLTS/DIV of channel 2 to 10 mV/div
• Set OFFSET to 500 mV
• Select the Timebase menu and set the TIME/DIV to 100 ps/div
• Center the f irst posit ive-g oin g edge of th e sig nal ( approxi mate De lay
= 29 ns)
• Select the D elta V menu and turn the V markers On
• Set the Marker 1 Position to 490 mV and the Marker 2 Position to
500 mV
• Select the Delta t menu and turn the T Markers On
• Set START ON EDGE = POS1 and STOP ON EDGE = POS1
• Press the PRECISE EDGE FIND
key
5. RECORD the delta t reading. This is the rise time of the refer-
ence signal within a 1% amplitude window of the signal connected to Input 2. This value is needed later to calculate the
correct jitter.(delta.t.up)
6. Select the Timebase menu and center the second positive-
going edge of the signal (approximate Delay = 79 ns)
7. Press MORE and HISTOGRAM
• Select the Window submenu and set:
• Source is channel 2
• Choose the Time Histogram
• Press WINDOW MARKER 1
• Press WINDOW MARKER 2
and set it to 490 mV
and set it to 500 mV
Agilent 81110A/’12A Performance Test 41
Agilent 81110A/’12A Performance Test
8. Select the Acquire submenu, set the Number of Samples to
1000 and press START ACQUIRING
9. After the data for the time histogram has been acquired (#
Samples = 100%), select the Result submenu.
10. Press ΜΕΑΝ and SIGMA. RECORD the values of sigma
11. The RMS-jitter is calculated as follows:
RMS - jitter =
6sigma - delta.t.up
6
12. The RMS-jitter for period of 50 ns is 20 ps. Enter the result in
the Test Report as TR entry 6.1a - 1
13. Set the Agilent 81110A period to 500 ns
14. Repeat steps 6 to 11
NOTE: TIME/DIV = 200 ps/div; approximate Delay = 529 ns
15. The RMS-jitter for period of 500 ns is 65 ps. Enter the result in
the Test Report as TR entry 6.1a - 2
42 Agilent 81110A/’12A Performance Test
Test 6.1b: Period Jitter, Internal PLL
Test Specifications
RMS-Jitter 0.001% + 15 ps
Equipment Needed
Digitizing Oscilloscope with Accessories
Delay Line (22 ns)
Power Splitter
Cable, 50 Ω, coaxial, BNC
Cable, SMA
Procedure
1. Connect Agilent 81110A to the Scope as shown.
Agilent 81110A/’12A Performance Test
54750A + 54751A
81110A UNDER TEST
81110A
330 MHz
5555
!"#$%&'
PULSE-/ PATTERN GENERATOR
BNC/SMA
Adapter
OUT 1
SMA Cable
6 dB Attenuator
54008A Delay Line
INPUT
OUTPUT
POWER SPLITTER
11667B
TRIG
SMA Cable
Equipment Set-up for Jitter Test using the Agilent 54750A +
54751A
Using the Agilent 54121T the Set-up is the same as before.
Agilent 81110A/’12A Performance Test 43
Agilent 81110A/’12A Performance Test
2. Set up the Agilent 81110A as described in "Initial Setup of the
Agilent 81110A"
3. Select the [MODE/TRG] screen on the Agilent 81110A and set
up as follows:
CONTINUOUS PULSES
Single-Pulses at Out1
Single-Pulses at Out2
Pulse-Period: internal PLL
TIMING PATTERNLEVELSMODE/TRG
The TRG MODE Screen Setup
4. On the Agilent 81110A set up [OUTPUT 1] and [OUTPUT 2]
pages as shown in the following illustrations:
Per Normal ON
20.00ns
1
+500mV
1.00V
Delay
Width
LeadE
TraiE
0ps
10.00ns
0.80ns
=LeadE
OFF
Offset
Amplit
MODIFY
int. OSC
*int. PLL
CLK-IN
MODIFY
20.00
ns
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
44 Agilent 81110A/’12A Performance Test
Configuring Output Screen 1
Per Normal OFF
20.00ns
Delay
Width
LeadE
TraiE
Configuring Output Screen 2
0ps
10.00ns
0.80ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Offset
Amplit
Agilent 81110A/’12A Performance Test
OFF
+500mV
1.00V
2
MODIFY
20.00
ns
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.
5. Set the Digitizing Oscilloscope Agilent 54121T:
• Press AUTOSCALE
• Select th e Display menu and set the Number of Averages to 64
Agilent 81110A/’12A Performance Test 45
Agilent 81110A/’12A Performance Test
• Select the Channel me nu and set the Attenuation factor of channel
2 to 2
• Set the VOLTS/DIV of ch annel 2 to 10 mV/div
• Set OFFSET to 500 mV
• Select the Timebase menu and set the TIME/DIV to 100 ps/div
• Center the f irst posit ive-g oing e dge of t he sig nal ( approxi mate De lay
= 29 ns)
• Select the D elta V menu and turn the V markers On
• Set the Marker 1 Position to 490 mV and the Marker 2 Position
to 500mV
• Select the Delta t menu and turn the T Markers On
• Set START ON EDGE = POS1 and STOP ON EDGE = POS1
• Press the PRECISE EDGE FIND key
6. RECORD the delta t reading. This is the rise time of the refer-
ence signal within a 1% amplitude window of the signal connected to Input 2. This value is needed later to calculate the
correct jitter. (delta.t.up)
7. Select the Timebase menu and center the second positive-
going edge of the signal (approximate Delay = 49 ns)
8. Press MORE and HISTOGRAM
• Select the Window submenu and set:
• Source is channel 2
• Choose the Time Histogram
• Press WINDOW MARKER 1 and set it to 490 mV
46 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
• Press WINDOW MARKER 2 and set it to 500 mV
9. Select the Acquire submenu, set the Number of Samples to
1000 and press START ACQUIRING
10. After the data for the time histogram has been acquired (#
Samples = 100%), select the Result submenu.
11. Press MEAN and SIGMA. RECORD the values of sigma
12. The RMS-jitter is calculated as follows:
RMS - jitter =
6sigma-delta.t.up
6
13. The RMS-jitter for period of 20 ns is 15.2 ps. Enter the result
in the Test Report as TR entry 6.1b - 1
NOTE: See the Agilent54750A User’s Guide / Service Guide to get the
info needed to do the Jitter Test using this scope.
Agilent 81110A/’12A Performance Test 47
Agilent 81110A/’12A Performance Test
Test 6.2: Width Jitter (PPL not active)
Test Specifications
RMS-Jitter 0.01% + 15 ps
Equipment Needed
Digitizing Oscilloscope with Accessories
Delay Line (22 ns)
Power Splitter
Cable, 50 Ω, coaxial, BNC
Cable, SMA
Procedure
1. Connect Agilent 81110A to the Scope as shown:
81110A UNDER TEST
330 MHz
81110A
5555
!"#$%&'
PULSE-/ PATTERN GENERATOR
INPUT 1
2
54121T Frontend
SMA - SMA
Adapter
SMA Cable
BNC - SMA
Adapter
OUT 1
Equipment Set-up for Jitter Test
2. Set up the Agilent 81110A as described in "Initial Setup of the
Agilent 81110A"
48 Agilent 81110A/’12A Performance Test
SMA Cable
54008A Delay Line
4
3
INPUT
TRIG
POWER SPLITTER
OUTPUT
11667B
Agilent 81110A/’12A Performance Test
3. On the Agilent 81110A set up [OUTPUT 1] and [OUTPUT 2]
pages as shown in the following illustrations:
Per 1.000
Delay
Width
LeadE
TraiE
Configuring Output Screen 1
Per 1.000
Delay
Width
LeadE
TraiE
1.515ns
µµµµ
s Normal ON
0ps
0.80ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
µµµµ
s Normal OFF
0ps
1.515ns
0.80ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Offset
Amplit
Offset
Amplit
OFF
+500mV
1.00V
OFF
+500mV
1.00V
1
1.515
2
1.515
MODIFY
ns
MODIFY
ns
Configuring Output Screen 2
Agilent 81110A/’12A Performance Test 49
Agilent 81110A/’12A 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 th e Display menu and set the Number of Averages to 128
• Select the Channel me nu and set the Attenuation factor of channel 2
to 2
• Set the VOLTS/DIV of ch annel 2 to 10 mV/div
• Set OFFSET to 500 mV
• Select the Timebase menu and set the TIME/DIV to 10 ps/div
• Center the f irst negative -going e dge of the s ignal (appr oximate Delay
= 33.8 ns)
• Select the D elta V menu and turn the V markers On
• Set the Marker 1 Position to 500 mV and the Marker 2 Position to
490 mV
• Select the Delta t menu and turn the T Markers On
• Set START ON EDGE = NEG1 and STOP ON EDGE = NEG1
• Press the PRECISE EDGE FIND
50 Agilent 81110A/’12A Performance Test
key
Agilent 81110A/’12A Performance Test
5. RECORD the delta t reading. This is the fall time of the referencesignal within a 1% amplitude window of the signal connected to Input 2. This value isneeded later to calculate the
correct jitter. (delta.t.dn)
6. Set the Agilent 81110A Pulse Width to 50 ns
7. Select the Timebase menu and center the first negative-going
edge of the signal (approximate Delay = 80.5 ns)
8. Press MORE and HISTOGRAM
9. Select the Window submenu and set:
• Source is channel 2
• Choose the Time Histogram
• Press WINDOW MARKER 1
• Press WINDOW MARKER 2
and set it to 500 mV
and set it to 490 mV
10. Select the Acquire submenu, set the Number of Samples to
1000 and press START ACQUIRING
11. After the data for the time histogram has been acquired (#
Samples = 100%), select the Result submenu.
12. Press MEAN and SIGMA. RECORD the value of sigma
13. The RMS-jitter is calculated as follows:
Agilent 81110A/’12A Performance Test 51
Agilent 81110A/’12A Performance Test
RMS - jitter =
6 sigma - delta.t.dn
6
14. The RMS-jitter for pulse width of 50 ns is 20 ps. Enter the
result in the Test Report as TR entry 6.2 - 1
15. Set the Agilent 81110A for pulse width of 500ns
16. Repeat steps 7 to 13
NOTE: TIME/DIV = 100ps/div. Approximate delay = 530 ns
17. The RMS-jitter for pulse width of 500 ns is 65 ps. Enter the
result in the Test Report as TR entry 6.2 - 2
18. Repeat steps 1. to 17. for Width Jitter - PLL active.
Test Specifications
RMS-Jitter 0.001% + 15 ps
19. Enter the results in the Test Report as TR entry 6.2a - 1 and
TR entry 6.2a - 2
The RMS-jitter for pulse width of 50 ns is 15.5 ps
The RMS-jitter for pulse width of 500 ns is 20 ps
NOTE: Repeat the entire test for the second channel, if it is installed.
52 Agilent 81110A/’12A Performance Test
Test 6.3: Delay Jitter (PLL not active)
Test Specifications
RMS-Jitter 0.01% + 15 ps
Equipment Needed
Digitizing Oscilloscope with Accessories
Procedure
1. Connect Agilent 81110A to the Scope as shown:
Agilent 81110A/’12A Performance Test
81110A UNDER TEST
330 MHz
81110A
5555
!"#$%&'
PULSE-/ PATTERN GENERATOR
TRIG OUT
OUT 1
54121T Frontend
INPUT 1 2 3 4 TRIG
6 dB
Attenuator
with SMA/BNC
Adapter
Equipment Set-up for Delay Jitter Test
2. For calculating the RMS-jitter, the rise time of the reference
signal within a 1% amplitude window is required. If this value
Agilent 81110A/’12A Performance Test 53
Agilent 81110A/’12A Performance Test
is not already measured in the Period Jitter test, then perform
the first 6 steps of the Period Jitter test.
3. Set up the Agilent 81110A as described in "Initial Setup of the
Agilent 81110A"
4. On the Agilent 81110A press MORE and set up [OUTPUT 1]
and [OUTPUT 2] pages as shown in the following illustrations:
Per 1.000
Delay
LeadE
TraiE
Configuring Output Screen 1
Per 1.000
Delay
LeadE
TraiE
50.00ns
50.00nsWidth
50.00ns
50.00nsWidth
µµµµ
s Normal ON
0.80ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
µµµµ
s Normal OFF
0.80ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Offset
Amplit
Offset
Amplit
OFF
+500mV
1.00V
OFF
+500mV
1.00V
1
50.00
2
50.00
MODIFY
ns
MODIFY
ns
Configuring Output Screen 2
54 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A 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.
5. Set the Digitizing Oscilloscope Agilent 54121T:
• Press AUTOSCALE
• Select th e Display menu and set the Number of Averages to 64
• Set the VOL TS/DIV = 10 mV/div
• Set OFFSET to 500 mV
• Select the Timebase menu and set the TIME/DIV to 100 ps/div
• Center the f irst posit ive-g oing e dge of th e sig nal ( approxi mate De lay
= 64 ns)
6. Press MORE and HISTOGRAM
7. Select the Window submenu and press WINDOW MARKER
1 and set it to 490 mV
8. Press WINDOW MARKER 2 and set it to 500 mV
9. Select the Acquire submenu, set the Number of Samples to
1000 and press START ACQUIRING
10. After the delta for the time histogram has been acquired (#
Samples = 100%), select the Result submenu.
11. Press MEAN and SIGMA. RECORD the values of sigma!
Agilent 81110A/’12A Performance Test 55
Agilent 81110A/’12A Performance Test
12. The RMS-jitter is calculated as follows:
RMS - jitter =
6
13. The RMS-jitter for delay of 50 ns is 20 ps. Enter the result in
the Test Report as TR entry 6.3 - 1
14. Set Agilent 81110A for delay of 500 ns
15. Repeat steps 9 to 12
6sigma - delta.t.up
NOTE: TIME/DIV = 100 ps/div. Approximate delay = 510 ns
16. The RMS jitter for delay of 500 ns is 65 ps. Enter the result in
the Test Report as TR entry 6.3 - 2
17. Repeat steps 1. to 16 . for Delay Jitter - PLL active.
Test Specifications
RMS-Jitter 0.001% + 15 ps
18. Enter the results in the Test Report as TR entry 6.3a - 1 and
TR entry 6.3a - 2
The RMS-jitter for pulse width of 50 ns is 15.5 ps
The RMS-jitter for pulse width of 500 ns is 20 ps
NOTE: Repeat the entire test for the second channel, if it is installed.
56 Agilent 81110A/’12A Performance Test
Test 7: High and Low Levels
The following tests are required:
1. High level from 50Ω into 50Ω
2. Low level from 50Ω into 50Ω
Test Specifications
Source Impedance 50 Ω
High Level -1.900 V to +3.8 V
Low Level -2.0 V to +3.7 V
Amplitude 0 .1 00 V pp to 3.8 Vpp
Level Resolution 10 mV
Agilent 81110A/’12A Performance Test
Load Impedance 50 Ω
Equipment Needed
1. Digitizing Voltmeter (DVM)
2. 50 Ω Feedthrough Termination, 0.1%, 10 W Adapter.
3. BNC to dual banana plug (Agilent 1251-2277)
4. Cable, 50 Ω, coaxial, BNC
Procedure
Connect Agilent 81110A to the DVM as shown:
Level Accuracy +
Agilent 81110A/’12A Performance Test 57
2% of ampl + 50 mV
Agilent 81110A/’12A Performance Test
81110A UNDER TEST
330 MHz
81110A
5555
!"#$%&'
PULSE-/ PATTERN GENERATOR
3458A DVM
EXT.
TRIGGER
INPUT
BNC-DUAL
BANANA
TRIG OUT
OUT 1
Connecting the DVM for High and Low Levels Tests
Test 7.1: High Level, 50 Ohms into 50 Ohms
1. Set up the Agilent 81110A as described in "Initial Setup of the
Agilent 81110A"
2. On the Agilent 81110A press MORE and set up [OUTPUT 1]
and [OUTPUT 2] pages as shown in the following illustrations:
Per 100.0ms Normal ON
Delay
LeadE
TraiE
25.00ms
50.00msWidth
0.80ns
=LeadE
High
Low
OFF
1
+3.80V
+0.0mV
0.1%
50 OHM
Feedthrough
10W
MODIFY
+3.80
V
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Configuring Output Screen 1
58 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
Per 100.0ms Normal OFF
OFF
Delay
LeadE
TraiE
Configuring Output Screen 2
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.
25.00ms
50.00msWidth
0.80ns
=LeadE
High
Low
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
+3.80V
2
+0.0mV
MODIFY
+3.80
V
3. Set the DVM Agilent 3458A to:
Function: DCV
Trigger: TRIG EXT
AD-Converter integration time NPLC: 0.1
(Number of Power Line Cycles)
Agilent 81110A/’12A Performance Test 59
Agilent 81110A/’12A Performance Test
4. Check the Agilent 81110A high level at the following high
level settings with the low level set to 0.0 V.
High Level Acceptable Range TR Entr y
3.80 V
1.0 V
0.5 V
0.1 V
3.674 V to 3.926 V
0.93 V to 1.07 V
440 mV to 560 mV
48 mV to 152 mV
The low level may vary within + 2% of amplitude+ 50 mV
Test 7.2: Low Level, 50 Ohms into 50 Ohms
1. Set up the Agilent 81110A as described in "Initial Setup of the
Agilent 81110A"
2. On the Agilent 81110A press MORE and set up [OUTPUT 1]
and [OUTPUT 2] pages as shown in the following illustrations:
Per 100.0ms Normal ON
Delay
LeadE
TraiE
75.00ms +0.0mV
50.00msWidth
0.80ns
=LeadE
High
Low
7.1 - 1
7.1 - 2
7.1 - 3
7.1 - 4
OFF
1
-100mV
MODIFY
-100
mV
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Configuring Output Screen 1
60 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
Per 100.0ms Normal OFF
Delay
LeadE
TraiE
75.00ms +0.0mV
50.00msWidth
0.80ns
=LeadE
High
Low
OFF
2
-100mV
MODIFY
-100
mV
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Configuring Output Screen 2
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.
3. Check the Agilent 81 1 10A low level at the following low level
settings with the high level set to 0.0 V
Low Level Acceptable Range TR Entry
-0.1 V
-0.5 V
-1.0 V
-2.00 V
Agilent 81110A/’12A Performance Test 61
-48 mV to -152 mV
-440 mV to -560 mV
-0.93 V to -1.07 V
-1.910 V to -2.090 V
7.2 - 1
7.2 - 2
7.2 - 3
7.2 - 4
Agilent 81110A/’12A Performance Test
The high level 0.0 V may vary + 2% of amplitude +50 mV.
NOTE: Repeat the Hig h and L ow Lev el te sts for the sec ond ch an nel, if it
is installed.
62 Agilent 81110A/’12A Performance Test
Test 8: Transition Time
Test Specifications
Agilent 81110A/’12A Performance Test
Range
Minimum Transitions
Accuracy
Equipment Needed
Digitizing Oscilloscope with Accessories
Cable, SMA
Procedure
Perform the tests as shown in the following sections:
0.8 ns OR 1.6 ns
(measured between 10% and 90% of amplitude)
< 600 ps for Vpp < 1 V
< 900 ps for Vpp > 1 V
(typical 450 ps for ECL levels
measured between 20% and 80% of amplitude)
± 10% ± 200 ps
Agilent 81110A/’12A Performance Test 63
Agilent 81110A/’12A Performance Test
Test 8.1a: Leading Edge Test
Minimum Leading Edge and Leading Edge ranges .
1. Connect Agilent 81110A to the Scope as shown:
81110A UNDER TEST
81110A
330 MHz
5555
!"#$%&'
PULSE-/ PATTERN GENERATOR
Connecting Agilent 81110A to the Scope
NOTE:
When you connect the tes t equipme nt the firs t time, and when ever
you change the setup during the following tests, use the torque
wrench (8170-1582) to tighten and loosen the SMA connectors.
This will ensure th at the connec tors are at the correct tightness a nd
give the best signal transfer!
TRIG OUT
BNC - SMA Adaptor
OUT 1
Cable, SMA
54121T Frontend
INPUT 1 2 3 4 TRIG
20dB
Attenuator
2. Set up the Agilent 81110A as described in "Initial Setup of the
Agilent 81110A"
3. On the Agilent 81110A press MORE and set up [OUTPUT 1]
and [OUTPUT 2] pages as shown in the following illustrations:
64 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
Per 500.0
Delay
DtyCyc
LeadE
TraiE
Configuring Output Screen 1
Per 500.0
Delay
DtyCyc
LeadE
TraiE
µµµµ
s Normal ON
0ps
Offset
50.00%
0.80ns
=LeadE
50.00%
0.80ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Amplit
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
µµµµ
s Normal OFF
0ps
Offset
Amplit
OFF
+0.0mV
3.80V
OFF
+0.0mV
3.80V
1
2
MODIFY
*0.8ns
1.6ns
MODIFY
*0.8ns
1.6ns
NOTE:
Configuring Output Screen 2
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
Agilent 81110A/’12A Performance Test 65
Agilent 81110A/’12A Performance Test
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
• Center one pulse on screen, e.g.:
• TIME/DIV = 50
• Select th e Display menu and set the Number of Averages to 32
• Select the Channel menu and set the Attenuation factor to 10
• Select the Delta V menu and turn the voltage markers On
• Set the Preset Levels = 10-90% and press AUTO LEVEL SET
• Select the Timebase menu and set TIME/DIV = 1 ns/div, DELAY =
16 ns
• Select the Delta t menu and turn the markers On
• Set START ON EDGE = POS1 and STOP ON EDGE = POS1
µs/div, DELAY = 380 µs,
5. Set period of Agilent 81110A to: Period = 1 µs and
change the Agilent 811 10A Delay to center the leading edge of
the first pulse on the screen
6. After the averaging, while the oscilloscope is in the Delta t
menu, Press the PRECISE EDGE FIND key
66 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
7. Check the Agilent 81110A rise times at the following leading
edge settings:
Oscilloscope TIME/
DIV
1 ns/div
1 ns/div
Period
1 µs
1 µs
Leading
Edge
0.8 ns
1.6 ns
Trailing
Edge
0.8 ns
1.6 ns
Acceptable
Range
s to 1.080 ns
540 p
1.240 ns to 1.960 ns
TR
Entry
8.1a - 1
8.1a - 2
Agilent 81110A/’12A Performance Test 67
Agilent 81110A/’12A Performance Test
Test 8.1b: Trailing Edge Test
Minimum Trailing Edge and Trailing Edge range.
1. Connect Agilent 81110A to the Scope as shown in Test 8.1a
Leading Edge Test.
2. Set up the Agilent 81110A as described in Test 8.1a Leading
Edge 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.
3. Set the digitizing oscilloscope Agilent 54121T:
• Select the oscilloscopes Timebase menu and set TIME/DIV to 1 ns/
div
and DELAY to approximately 510 ns
Select the oscilloscopes Delta t menu and set START ON
•
EDGE = NEG1
and STOP ON EDGE = NEG1
4. While the oscilloscope is in the Delta t menu, press the PRECISE EDGE FIND key
5. Check the Agilent 81110A output signal falls at the following
trailing edge settings:
68 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
Oscilloscope
TIME/DIV
1 ns/div
1 ns/div
Delay Period
529 ns
529 ns
1 µs
1 µs
Trailing
Edge
0.8 ns
1.6 ns
Leading
Edge
0.8 ns
1.6 ns
Acceptable
Range
540 p
s to 1.080 ns
1.240 ns to 1.960 ns
TR
Entry
8.1b - 1
8.1b - 2
Agilent 81110A/’12A Performance Test 69
Agilent 81110A/’12A Performance Test
Test 9: Pulse Aberration Test
The following tests are required:
Overshoot and Ringing
Preshoot
Test Specifications
Overshoot/Preshoot/Ringing
+ 5% of amplitude + 50 mV
Equipment Needed
Digitizing Oscilloscope with Accessories
Procedure
6. Set up the Agilent 81110A as described in "Initial Setup of the
Agilent 81110A"
1. Connect Agilent 81110A to the Scope as shown:
81110A UNDER TEST
330 MHz
81110A
5555
!"#$%&'
PULSE-/ PATTERN GENERATOR
TRIG OUT
BNC - SMA Adaptor
OUT 1
Cable, SMA
INPUT 1 2 3 4 TRIG
Connecting Agilent 81110A to the Scope
70 Agilent 81110A/’12A Performance Test
54121T Frontend
20dB
Attenuator
Agilent 81110A/’12A Performance Test
Per 500.0
Delay
DtyCyc
LeadE
TraiE
Configuring Output Screen 1
Per 500.0
Delay
DtyCyc
LeadE
TraiE
µµµµ
s Normal ON
0ps
High
50.00%
0.80ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
50.00%
0.80ns
=LeadE
OUTPUT 1 PATTERNOUTPUT 2MODE/TRG
Low
µµµµ
s Normal OFF
0ps
High
Low
OFF
+3.8V
+0.0mV
OFF
+3.8V
+0.0mV
1
+3.80
2
+3.80
MODIFY
V
MODIFY
V
Configuring Output Screen 2
Agilent 81110A/’12A Performance Test 71
Agilent 81110A/’12A 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.
Overshoot and Ringing
2. Set the digitizing oscilloscope Agilent 54121T:
• Press AUTOSCALE
• Select th e Display menu and set the Number of Averages to 32
• Select the Channel menu and set the Attenuation factor to 10
• Center one pulse horizontally and vertically on screen
•(e.g. TIME/DIV = 50µs/div, DELAY = 250 µs)
• Select the delta V menu and turn the voltage markers On
• Set the VARIABLE LEVELS = 95% - 105% and press
AUTO LEVEL SET
• Select the channel menu and center vertically the top pulse
(offset = 5 V)
• Set the VOL TS/DIV = 200 mV/div
• Select the Timebase menu and set TIME/DIV = 5 ns/div, DELAY =
16 ns (>> 500 ns)
3. Set the Agilent 81110A to period = 500 ns
72 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
4. Check that Overshoot and Ringing are within the ±5% of
amplitude ±50 mV window
5. Enter the result in the Test Report as TR entry 9 - 1
NOTE: Take the oscilloscope's trace flatness error (GaAs input circuit)
into account .
Preshoot
6. Set Agilent 81110A to:
• Period = 500 µs
• High Level = 3.8 V
• Low Level = 0 V
• Delay = 10 ns
7. Set the digitizing oscilloscope, Agilent 54121T:
• Press AUTOSCALE
• Select th e Display menu and set the Number of Averages to 32
• Select the Channel menu and set the Attenuation factor to 10
• Center one pulse horizontally and vertically on screen
•(e.g. TIME/DIV = 50
• Select the delta V menu and turn the voltage markers On
• Set the VARIABLE LEVELS = -5% to +5% and press AUTO
LEVEL SET
• Select the channel menu and center vertically the bottom of the
•pulse (offset = 0 V)
Agilent 81110A/’12A Performance Test 73
µs/div, DELAY = 265 µs)
Agilent 81110A/’12A Performance Test
• Set the VOL TS/DIV = 200 mV/div
• Select the Timebase menu and set TIME/DIV = 5 ns/div, DELAY =
16 ns
8. Set Agilent 81110A to period = 500 ns
9. Check that Preshoot is within the ±5% of amplitude ± 50 mV
window.
10. Enter the result in the Test Report as TR entry 9 - 2
74 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test 75
Agilent 81110A/’12A Performance Test
Agilent 81110A Performance Test Records
Test Facility:
________________________ R eport No. _______________
________________________ Date _______________
________________________ Customer _______________
________________________ Tested By _______________
×
Model Agilent 81110A Pulse Generator Mainframe
Serial No. ________________
Options ____________ Ambient temperature _______°C
____________ Relative humidity ________%
____________
____________
Firmware Rev. _____________ Line frequency _______Hz
Special Notes:
____________________________________________________
____________________________________________________
____________________________________________________
____________________________________________________
____________________________________________________
76 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
Test Equipment Used
Description Model No. Trace No. Cal. Due
Date
1. Oscilloscope Agilent 54121 T ________ ________
2. Counter Agilent 5334B ______ __ ________
3. Digital Voltmeter Agilent 3458A ________ ________
4. Pulse Generator Agilent 8110A ________ ________
5. Delay Line Agilent 54008A ________ ________
6. _________________________________________________
7. _________________________________________________
8. _________________________________________________
9. _________________________________________________
10._________________________________________________
11._________________________________________________
12._________________________________________________
13._________________________________________________
14._________________________________________________
Agilent 81110A/’12A Performance Test 77
Agilent 81110A/’12A Performance Test
Test Results for Agilent 81110A Mainframe
Serial No. ___________ Ambient temperature _________
°C
Customer ____________ Relative humidity _________ %
CSO# ____________ Line frequency _________ Hz
Tested by ____________ Date ____________
Comments
____________________________________________________
____________________________________________________
____________________________________________________
Internal Oscillator Period
Scope Uncertainty factor ________________
_____________________________________________________
TR Entry Test Limit Actual Limit Pass Fail
Min Result Max
_____________________________________________________
1-1 3.03ns 2.9391 ns ______ 3.1209 ns ____ ____
1-2 6.06ns 5.878 ns ______ 6.242 ns ____ ____
1-3 10.0ns 9.7 ns ______ 10.3 ns ____ ____
1-4 50.0ns 48.5 ns ______ 51.5 ns ____ ____
1-5 99.9ns 96.903 ns ______ 102.897 ns ____ ____
78 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
Counter Uncertainty factor ___________
_____________________________________________________
TR Entry Test Limit Actual Limit Pass Fail
Min Result Max
_____________________________________________________
1-6 100 ns 97.0ns ________ 103.0 ns ____ ____
1-7 500 ns 485.0 ns _______ 515.0 ns ____ ____
1-8 1 µs 970.0 ns _______ 1030.0 ns ____ ____
1-9 5 00µs 485 µs _______ 5 15 µs ____ ____
1-10 500 ms 485 ms _______ 515 ms ____ ____
Agilent 81110A/’12A Performance Test 79
Agilent 81110A/’12A Performance Test
PLL Period
(Results measured as frequency by counter)
Counter Uncertainty factor ____________
_____________________________________________________
TR Test Limit Actual Limit Pass Fail
Entry Min Result Max
_____________________________________________________
2-1 3.03 ns 329.9670MHz________ 330.0330MHz __ __
2-2 10.00 ns 99.990MHz _______ 100.010 MHz __ __
2-3 50.00 ns 19.9980MHz _______ 20.0020MHz __ __
2-4 100 ns 9.9990MHz _______ 10.0010MHz __ __
2-5 500 ns 1.9998MHz _______ 2.0002MHz __ __
2-6 1 µs 999.9 kHz _______ 1.0001 MHz __ __
2-7 50 µs 19.998 kHz _______ 20.002 kHz __ __
2-8 5 m 199.98 Hz _______ 20002 Hz __ __
2-9 500 m 1.9998 Hz _______ 2.0002 Hz __ __
2-10 5 s 0.19998 Hz _______ 0.20002 Hz __ __
80 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
Period Jitter
Scope Uncertainty factor ____________
_____________________________________________________
TR Entry Test Limit Actual Limit Pass Fail
Min Result Max
_____________________________________________________
6.1a-1 50 ns ______ 20 ps ____ ____
6.1a-2 500 ns ______ 65 ps ____ ____
6.1b-1 20 ns _______ 15.2 ps ____ ____
Agilent 81110A/’12A Performance Test 81
Agilent 81110A/’12A Performance Test
Test Results for Agilent 81112A Output Channel ______
Serial No. ________________
Width
Scope Uncertainty factor ________________
_____________________________________________________
TR Entry Test Limit Actual Limit Pass Fail
Min Result Max
_____________________________________________________
3-1 1.515 ns 1.22455 ns________1.80545 ns ____ ____
3-2 6.06ns 5.528 ns ________ 6.492 ns ____ ____
3-3 10.0 ns 9.450ns ________ 10.550 ns ____ ____
3-4 50.0 ns 48.25 ns ________ 51.75 ns ____ ____
3-5 100 ns 96.75 ns ________ 103.25 ns ____ ____
3-6 500 ns 484.75 ns ________ 515.25 ns ____ ____
3-7 50 µs 48.5 µs _________ 51.5 µs ____ ____
3-8 5 ms 4.85 ms ________ 5.15 ms ____ ____
3-9 500 ms 485 ms ________ 515 ms ____ ____
82 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
Width Jitter
Scope Uncertainty factor __________
_____________________________________________________
TR Entry Test Limit Actual Limit Pass Fail
Min Result Max
_____________________________________________________
6.2-1 50 ns ________ 20 ps ____ ____
6.2-2 500 ns ________ 65 ps ____ ____
6.2a-1 50 ns ________ 15.5 ps ____ ____
6.2a-2 500 ns ________ 20 ps ____ ____
Agilent 81110A/’12A Performance Test 83
Agilent 81110A/’12A Performance Test
Delay
Scope Uncertainty factor __________
_____________________________________________________
TR Entry Test Limit Actual Limit Pass Fail
Min Result Max
_____________________________________________________
4-1 0.00 ns _________Fixed Delay ____ ____
4-2 5.00 ns 4.35 ns _________ 5.65 ns ____ ____
4-3 10 ns 9.20 ns _________ 10.80 ns ____ ____
4-4 50.0 ns 48.0 ns _________ 52.0 ns ____ ____
4-5 100 ns 96 .5 ns __________ 103.5 ns ____ ____
4-6 500 ns 484.5 ns __________ 515.5 ns ____ ____
4-7 50 µs 48.5 µs _________ 51.5 µs ____ ____
4-8 5 ms 4.85 ms _________ 5.15 ms ____ ____
4-9 500 ms 485 ms _________ 515 ms ____ ____
84 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
Delay Jitter
Scope Uncertainty factor __________
_____________________________________________________
TR Entry Test Limit Actual Limit Pass Fail
Min Result Max
_____________________________________________________
6.3-1 50 ns ________ 20 ps ____ ____
6.3-2 500 ns ________ 65 ps ____ ____
6.3a-1 50 ns ________ 15.5 ps ____ ____
6.3a-2 500 ns ________ 20 ps ____ ____
Agilent 81110A/’12A Performance Test 85
Agilent 81110A/’12A Performance Test
Double Pulse Delay
Scope Uncertainty factor __________
_____________________________________________________
TR Entry Test Limit Actual Limit Pass Fail
Min Result Max
_____________________________________________________
5-1 3.015 ns 2.77455 ns _______ 3.25545 ns ____ ____
5-2 10.0 ns 9.550 ns _______ 10.45 ns ____ ____
5-3 50.0ns 48.35 ns _______ 51.65 ns ____ ____
5-4 100ns 96.85 ns _______ 103.15 ns ____ ____
Counter Uncertainty factor __________
_____________________________________________________
TR Entry Test Limit Actual Limit Pass Fail
Min Result Max
_____________________________________________________
5-5 500 ms 485 ms _______ 515 ms ____ ____
5-6 1 s 970.0 ms ________ 1030.0 ms ____ ____
86 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
High Level 50Ω-50Ω
_____________________________________________________
TR Entry Test Limit Actual Limit Pass Fail
Min Result Max
_____________________________________________________
7.1-1 3.80V 3.674 V ________ 3.926 V ____ ____
7.1-2 1.0 V 0.93 V __________ 1.07 V ____ ____
7.1-3 0.5 V 440 m V __________ 560 mV ____ ____
7.1-4 0.1 V 48 mV __________ 152 mV ____ ____
Low Level 50Ω-50Ω
_____________________________________________________
TR Entry Test Limit Actual Limit Pass Fail
Min Result Max
_____________________________________________________
7.2-1 -0.1 V -49 mV __________-151 mV ____ ____
7.2-2 -0.5 V -445 mV __________-555 mV ____ ____
7.2-3 -1.0 V -0.94 V __________-1.06 V ____ ____
7.2-4 -2.0 V -1.910 V _________ -2.090 V ____ ____
Agilent 81110A/’12A Performance Test 87
Agilent 81110A/’12A Performance Test
Leading Edge
Scope Uncertainty factor __________
_____________________________________________________
TR Entry Test Limit Actual Limit Pass Fail
Min Result Max
_____________________________________________________
8.1a-1 0.8 ns 540 ps __________ 1.08 ns ____ ____
8.1a-2 1.6 ns 1.24 ns __________ 1.96 ns ____ ____
Trailing Edge
_____________________________________________________
TR Entry Test Limit Actual Limit Pass Fail
Min Result Max
_____________________________________________________
8.1b-1 0.8 ns 540 ps __________ 1.08 ns ____ ____
8.1b-2 1.6 ns 1.24 ns __________ 1.96 ns ____ ____
88 Agilent 81110A/’12A Performance Test
Agilent 81110A/’12A Performance Test
Overshoot and Ringing
Scope Uncertainty factor __________
_____________________________________________________
TR Entry Test Limit Actual Limit Pass Fail
Min Result Max
_____________________________________________________
9-1 5V __________ + 5% of ampl.____ ____
+50mV
9-2 500 mV ________ _ +5% of ampl. ____ ____
+50mV
Preshoot
_____________________________________________________
TR Entry Test Limit Actual Limit Pass Fail
Min Result Max
_____________________________________________________
9-3 0 V _________
+5% of ampl. ____ ____
+50mV
Agilent 81110A/’12A Performance Test 89
Agilent 81110A/’12A Performance Test
90 Agilent 81110A/’12A Performance Test
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