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Index

Agilent 81133A/81134A Pulse Generator User’s Guide, August 2002

89

Index

A

advanced signals

setup

27

Aux page

67

B

benefits

14

Burst (instrument mode)

69

burst signal

example

46

C

channel page

pages

channel

66

cleaning recommendations

11

clock

timing

77

Clock Input

16

clock jitter

14

clock signal

example

28

Clock Source

Ext. Direct

73

External

73

External 10 MHz Reference

73

Int. Direct

73

Internal

73

clock sources

73

Config page

pages

Config

67

D

data

14

Data (pattern mode)

70

Data page

67

data pattern

example

40

timing

79

declaration of conformity

12

Delay Control Input

16

delay modulation range

14

delay range

14

E

entering new values

23

environmental conditions

requirements

7

error messages

87

example

burst signal

46

clock signal

28

data pattern

40

pulse signal

36

repetitive burst signal

52

signals for stressed eye diagram 
measurement

58

example for jitter modulation

60

example for setting the variable 
crossover

60

Ext. Direct (Clock Source)

73

External (Clock Source)

73

External 10 MHz Reference (Clock 
Source)

73

F

frequency range

14

front panel

15

front panel inputs

16

front panel outputs

16

G

generated signals

timings

76

generic signal

setup

27

GPIB connector

18

graphical user interface

15

pages

66

ground the instrument

8

I

initial inspection

9

inputs

16

Clock Input

16

Delay Control Input

16

Start Input

16

instrument cover removing

8

instrument mode

Pulse/Pattern

68

instrument modes

68

Burst

69

Repetitive Burst

69

instrument panel

66

Int. Direct (Clock Source)

73

Internal (Clock Source)

73

internal PLL

74

J

jitter modulation

83

example

60

K

key features

14

clock jitter

14

data

14

delay modulation range

14

delay range

14

frequency range

14

PRBS

14

transition times

14

voltage amplitude

14

L

LAN connector

18

M

Main page

66

modes

instrument

68

pattern

70

signal

71

trigger output

75

modifying of units

24

modifying of values

24

N

navigation

through pages

20

through parameters

21

navigation knob

15

NRZ

71

number field

changing

23

numeric keys

15

Summary of Contents for 81133A

Page 1: ...S1 Agilent 81133A 81134A Pulse Generator User Guide...

Page 2: ...icense Restricted Rights Legend If software is for use in the performance of a U S Government prime contract or subcontract Software is delivered and licensed as Commercial computer software as define...

Page 3: ...quirements 10 Performance Requirements 10 Ventilation Requirements 10 Cleaning Recommendation 11 Declaration of Conformity 12 Introduction to the Agilent 81133A 81134A Pulse Generator 13 Benefits and...

Page 4: ...ser Interface 46 Using the Remote Programming Interfaces 51 Setting Up a Repetitive Burst Signal 52 Using the Graphical User Interface 52 Using the Remote Programming Interfaces 57 Setting Up Signals...

Page 5: ...rator User s Guide August 2002 5 Timing of Generated Signals 76 Clock 77 Pulses 78 Data Pattern 79 PRBS 80 Started Burst 81 Repetitive Burst 82 Jitter Modulation 83 Saving and Recalling Settings 83 Up...

Page 6: ...Contents 6 Agilent 81133A 81134A Pulse Generator User s Guide August 2002...

Page 7: ...ensure safe operation and to maintain the instrument in safe condition Safety Summary This product is a Safety Class 1 instrument provided with a protective earth terminal The protective features of t...

Page 8: ...instrument must be connected to the ac power mains through a grounded power cable with the ground wire firmly connected to an electrical ground safety ground at the power outlet Any interruption of t...

Page 9: ...ic shock do not perform electrical tests when there are signs of shipping damage to any part of the instrument s outer covers or panels Check if the Agilent 81133A or 81134A shipping container contain...

Page 10: ...umption is 200 VA with all options installed When the instrument is switched on the power supply adapts automatically to the applied AC power Auto Selection and monitors the AC power range during oper...

Page 11: ...se Generator User s Guide August 2002 11 Cleaning Recommendation Use a dry cloth or one slightly dampened with water to clean external case parts Do not attempt to clean internally WARNING To prevent...

Page 12: ...duct standards Standard Limit EMC IEC 61326 1 1997 A1 1998 EN 61326 1 1997 A1 1998 CISPR 11 1997 EN 55011 1998 Group 1 Class A IEC 61000 4 2 1995 EN 61000 4 2 1995 4 kV CD 8 kV AD IEC 61000 4 3 1995 E...

Page 13: ...ing pulses patterns and data at speeds up to 3 35 GHz They are ideal instruments for testing logic devices for example ECL LVDS LVPECL and other digital devices with clock rates from 15 MHz to 3 35 GH...

Page 14: ...eye with the Variable Crossover feature Predefined levels You can use the predefined levels to easily set up channels for commonly used logic families These are ECL LVPECL LVDS Data can be 8 kB of pat...

Page 15: ...tions functionality changes according to requirements Numeric keys Used to set parameter values Tab keys Used to scroll through the pages of the graphical user interface Navigation knob Used to naviga...

Page 16: ...ted signal Global Inputs and Outputs For the instrument Clock Input The clock input is used to apply an external clock signal or a reference signal for the internal PLL if a higher frequency accuracy...

Page 17: ...trument s outputs may not be within specification You have to either reenter the frequency of the external clock or ex ecute the Measure function See Clock Sources on page 73 for details Active When l...

Page 18: ...erator Rear Panel Overview 18 Agilent 81133A 81134A Pulse Generator User s Guide August 2002 Rear Panel Overview At the rear panel you can find the connectors for the remote programming interfaces GPI...

Page 19: ...change parameter values Scrolling through the Pages To scroll through the different pages use the instrument s tab keys located below the navigation knob See Navigation through the Pages on page 20 Ch...

Page 20: ...81134A Pulse Generator User s Guide August 2002 Navigation through the Pages The key tabs at the lower left corner of the display allows you to scroll through the different pages Main Channel Data Au...

Page 21: ...21 How to Navigate through the Parameters at one Page The navigation knob makes it easy to move through and set the parameters Rotate the navigation knob to move from one parameter to the next How to...

Page 22: ...2 Agilent 81133A 81134A Pulse Generator User s Guide August 2002 2 Press the navigation knob to open the selection list 3 Rotate the navigation knob to scroll through the list 4 Select an item by pres...

Page 23: ...ld By entering new values with the keypad By using the navigation knob to modify the values for fine tuning By changing single digits Entering New Values To enter a new value 1 Focus at the number fie...

Page 24: ...hanges at the output OR By rotating the navigation knob In this case you have to press Enter or the navigation knob to see the changes at the output Modify Values Fine Tuning To modify the value by us...

Page 25: ...5 Press the navigation knob once when you are done Changing Single Digits NOTE This procedure can also be used to change the unit of the parameter 1 Focus at the number field by rotating the navigati...

Page 26: ...Operating the Agilent 81133A 81134A Pulse Generator How to Change a Number Field 26 Agilent 81133A 81134A Pulse Generator User s Guide August 2002...

Page 27: ...p a Data Pattern on page 40 Setting Up a Burst Signal on page 46 Setting Up a Repetitive Burst Signal on page 52 Setting Up Signals for a Stressed Eye Diagram Measurement on page 58 All these signals...

Page 28: ...sk Set up two clock signals with 100 MHz and 200 MHz frequencies a duty cycle of 50 a high level of 1 0 V and a low level of 0 V Use Cases Generating clock signals can be used for Boards evaluation Mi...

Page 29: ...ettings To set the instrument parameters 1 In the instrument panel choose the Pulse Pattern mode 2 Switch to Freq and then with the numeric keypad enter 200 as the magnitude of the frequency 3 Select...

Page 30: ...t 2002 4 Enable the Channel 1 normal Output By pressing the respective softkey in the user interface OR By pressing the normal Out softkey for channel 1 next to the Output port The Channel 1 page now...

Page 31: ...l 2 1 Switch to channel 2 by pressing the Ch2 softkey 2 Select the pattern mode Square 3 Set the Freq Divider to 2 4 In the Levels panel Switch Ampl to High and set High to 1 0 V Set Low to 0 V 5 Enab...

Page 32: ...gnals Setting Up a Clock Signal 32 Agilent 81133A 81134A Pulse Generator User s Guide August 2002 The Channel 2 page now looks as follows Reconnect the DUT Reconnect the DUT by clicking the following...

Page 33: ...h a scope as DUT you can immediately see the signal Use the Pulse Generator s TRIGGER OUT to trigger the scope To enable the trigger output 1 At the Aux page press the TrigOut softkey function The gre...

Page 34: ...etting Up Generic and Advanced Signals Setting Up a Clock Signal 34 Agilent 81133A 81134A Pulse Generator User s Guide August 2002 The signals as displayed on a standard oscilloscope are depicted belo...

Page 35: ...n FUNC PATT set freq to 200 MHz FREQ 200 MHz Set up Channel 1 set pattern mode to Square FUNC MODE1 SQU set high Level to 1 V VOLT1 HIGH 1 000 V set low level to 0 V VOLT1 LOW 0 V enable output channe...

Page 36: ...cal User Interface Instrument Settings To set the instrument parameters 1 Disable the outputs 2 In the instrument panel choose the Pulse Pattern mode 3 Set the Period to 20 ns Channel Settings To set...

Page 37: ...user interface OR By pressing the normal Out softkey for channel 1 next to the Output port The Channel page now looks as follows Reconnect the DUT Enable the outputs Generated Signal Use the pulse ge...

Page 38: ...ignals Setting Up a Pulse Signal 38 Agilent 81133A 81134A Pulse Generator User s Guide August 2002 2 Enable the trigger output The signal as displayed on a standard oscilloscope is depicted below Trig...

Page 39: ...ect channels OUTP CENT OFF Set up the Instrument set mode to Pulse Pattern FUNC PATT set period to 20 ns PER 20 ns Set up Channel 1 set pattern mode to Pulse FUNC MODE1 PULSE set width to 5 ns WIDT1 5...

Page 40: ...rument With the 81134A instrument you can set up both signals simultaneously Using the Graphical User Interface Instrument Settings To set the instrument parameters 1 Disable the outputs 2 In the inst...

Page 41: ...he Output port The Channel page now looks as follows Channel Settings for the Pattern Signal To set the channel parameters for channel 2 1 Switch to Channel 2 by pressing the Ch2 softkey 2 Switch to t...

Page 42: ...ive softkey in the user interface OR By pressing the normal Out softkey for channel 2 next to the Output port The Channel page now looks as follows Data Settings for the Pattern Signal To set the data...

Page 43: ...e the outputs Generated Signals Use the pulse generator s TRIGGER OUT to trigger the scope on the data pattern To set up the trigger output 1 On the Aux page in the Trigger Output panel Select the tri...

Page 44: ...gnals Setting Up a Data Pattern 44 Agilent 81133A 81134A Pulse Generator User s Guide August 2002 2 Enable the trigger output The signals as displayed on a standard oscilloscope are depicted below Tri...

Page 45: ...RM NRZ set predefined levels to ECL values VOLT1 AMPL 800 mV VOLT1 OFFS 1 350 V VOLT1 TERM 2 000 V enable output channel 1 OUTP1 POS ON Set up Channel 2 set pattern mode to Data FUNC MODE2 DATA set da...

Page 46: ...rn is 10100000000000000000000000000000 The amplitude is 2 0 V and the offset is 0 V Start the output at the rising edge of an external signal with 1 V threshold applied at the start input Using the Gr...

Page 47: ...itch to the Channel page 2 Set the signal mode to RZ 3 In the Timing panel Switch from Dcycle to Width and set the Width to 100 ps Set the Delay to 50 ps 4 In the Levels panel set The level format to...

Page 48: ...e Channel page now looks as follows Data Settings for the Pattern Signal To set the data pattern 1 Switch to the Data page 2 Enter a Data Length of 32 bits 3 Enter the data pattern via the keypad for...

Page 49: ...mode This is indicated by the activated Armed softkey function Armed mode means that the signal is output as soon as the specified external signal occurs at the start input NOTE In burst mode the arm...

Page 50: ...User s Guide August 2002 The Aux page now looks as follows Generated Signal Use the generator s TRIGGER OUT to trigger a scope The signal as displayed on a standard oscilloscope is depicted below Tri...

Page 51: ...to 100 ps WIDT1 100 ps set delay to 50 ps DEL1 50 ps set predefined levels to Custom values Ampl 2V Offset 0mV VOLT1 AMPL 2 V VOLT1 OFFS 0 mV enable output channel 1 OUTP1 POS ON set datalength to 32...

Page 52: ...t with LVPECL logic The data pattern is 11100000000000000000000000000000 Using the Graphical User Interface Instrument Settings To set the instrument parameters 1 Disable the outputs 2 In the instrume...

Page 53: ...nel parameters 1 Switch to the Channel page 2 In the Timing panel Set the signal mode to NRZ Set the Delay to 50 ps 3 In the Levels panel set The level format to Custom Amplitude to 2 0 V Offset to 0...

Page 54: ...August 2002 The Channel page now looks as follows Data Settings for the Pattern Signal To set the data pattern 1 Switch to the Data page 2 Enter a Data Length of 32 bits 3 Enter the data pattern via t...

Page 55: ...ts Generated Signal Use the pulse generator s TRIGGER OUT to trigger a scope To set up the trigger output 1 On the Aux page in the Trigger Output panel Select the trigger mode Pulse One trigger pulse...

Page 56: ...g Up Generic and Advanced Signals Setting Up a Repetitive Burst Signal 56 Agilent 81133A 81134A Pulse Generator User s Guide August 2002 The signal as displayed on a standard oscilloscope is depicted...

Page 57: ...Hz FREQ 100 MHz Set up Channel 1 set signalmode to NRZ DIG1 SIGN FORM NRZ set delay to 50 ps DEL1 50 ps set predefined levels to Custom values Ampl 2V Offset 0mV VOLT1 AMPL 2 V VOLT1 OFFS 0 mV enable...

Page 58: ...scope for displaying the signals for example the 86100 DCA Two Channel Setup For a two channel setup you need An 81134A instrument An arbitrary waveform generator to generate additional jitter for ex...

Page 59: ...e 33250A output to the channel 2 delay control input of the 81134A use the BNC SMA adaptor and a 20 dB attenuator 2 Connect a 20 dB attenuator each to the channel 1 and the trigger input of the DCA 3...

Page 60: ...the Pulse Pattern mode 3 Set the Period to 1 GHz Channel Settings To set the channel parameters for channel 2 1 Switch to the Channel page 2 Switch to Channel 2 by pressing the Ch2 softkey 3 Select t...

Page 61: ...el page now looks as follows Reconnect the DUT Enable the outputs Generated Signal Use the pulse generator s TRIGGER OUT to trigger the scope To set up the trigger output 1 On the Aux page select the...

Page 62: ...gnals Setting Up Signals for a Stressed Eye Diagram Measurement 62 Agilent 81133A 81134A Pulse Generator User s Guide August 2002 2 Enable the trigger output Trigger Output Enabled TrigOut softkey fun...

Page 63: ...Press the Ampl softkey 5 Enter the value 2 with the numeric keypad 6 Press the Vpp softkey to select the desired unit Viewing the Eye Diagram on the 86100 DCA To view the eye diagram on the scope 1 E...

Page 64: ...n change the amplitude and frequency of the signal to show the influence of the delay control input Change from sine wave to rectangular wave by pressing the corresponding button You can also change t...

Page 65: ...nerated signals may not be valid The instrument does not check if values are within range For valid ranges see the Online Help available by pressing the button on the instrument This chapter Describes...

Page 66: ...ameters are available at the following panels and pages in the 81133A 81134A graphical user interface Instrument Panel The instrument panel is part of each page and provides controls that define the b...

Page 67: ...he Aux page provides controls to specify The Clock Source The Start Input The Trigger Output Config Page If you want to program the instrument remotely the Config page is used to set up all necessary...

Page 68: ...s The Internal Direct and External Direct can only be used as the clock source for Square pattern mode and NRZ signal mode Instrument Modes The instrument provides the following modes Pulse Pattern Mo...

Page 69: ...ng a external signal at the start input Asserting a manual trigger on one of the remote interfaces Pressing the start button on the user interface A burst consists of data packets repeated a selectabl...

Page 70: ...lock of fixed width 50 duty cycle Pulse Generates pulses with selectable width or duty cycle Data Generates data in either RZ R1 or NRZ format In RZ and R1 mode the pulse width can be selected as eith...

Page 71: ...of the pattern the signal remains low On every 1 bit of the pattern the signal goes to high and then back to low after the time specified by the pulse width or duty cycle parameter R1 Return to 1 puls...

Page 72: ...point in range 30 70 of the NRZ signal separately for each channel The variable crossover is used to artificially close the eye pattern which simulates distortion The crossover adjustment is not cali...

Page 73: ...FREQuency This value is then used to calculate frequency dependent values like the pulse width or the phase available at the Channel page For more information about the Measure function please refer...

Page 74: ...ency of the external clock signal in the range of one octave In external direct mode the internal PLL is bypassed This ensures that the instrument frequency exactly follows the external clock Range sw...

Page 75: ...n the selected instrument mode In Burst Mode As soon as the selected signal appears at the input the armed mode is deactivated the instrument sends one burst and then stops In Pulse Pattern and Repeti...

Page 76: ...ider to n x X where n is the frequency divider and X is the data length For example if the data length 32 bits and the frequency divider of channel 1 2 the frequency divider of the trigger output has...

Page 77: ...0 The instrument mode is Pulse Pattern The pattern mode is Square For the clock source you can select from Internal YIG Oscillator External signal at Clock Input External 10 MHz Reference at Clock Inp...

Page 78: ...or duty cycle and deskew can be set for each channel The instrument mode is Pulse Pattern The pattern mode is Pulse For the clock source you can select from Internal YIG Oscillator External signal at...

Page 79: ...s Data You can select between RZ NRZ and R1 signal modes for each output In R1 and RZ modes the pulse width can be selected as either width or duty cycle You can select between normal and inverted sig...

Page 80: ...se Pattern The pattern mode is PRBS You can select between RZ NRZ and R1 signal modes for each output In R1 and RZ modes the pulse width can be selected as either width or duty cycle You can select be...

Page 81: ...ect between RZ NRZ and R1 signal modes for each output In R1 and RZ modes the pulse width can be selected as either width or duty cycle You can select between normal and inverted signals for each outp...

Page 82: ...rements of 4 null data length Data pattern length x p The instrument mode is RBurst The pattern mode is Data You can select between RZ NRZ and R1 signal mode for each output In R1 and RZ mode the puls...

Page 83: ...e source for the jitter modulation input is assumed to be either a function generator or an arbitrary waveform generator Both have the capability of setting the output levels Therefore the instrument...

Page 84: ...Using the Agilent 81133A 81134A Pulse Generator Saving and Recalling Settings 84 Agilent 81133A 81134A Pulse Generator User s Guide August 2002...

Page 85: ...ing it The connection path to the instrument is queried for the time the executable is run A warning is issued if a new firmware revision would be overwritten by an older one Nevertheless this down gr...

Page 86: ...Updating the Firmware 86 Agilent 81133A 81134A Pulse Generator User s Guide August 2002...

Page 87: ...heck the termination mode and voltage for the output line in question and make sure that the actual termination matches this Unlock LED Lit The Unlock LED lights up when an external clock source is us...

Page 88: ...the instrument press the Local key if this is available As a last resort you can power the instrument down and back up Before you do this though make sure that no one is carrying out remote tests usi...

Page 89: ...0 example for setting the variable crossover 60 Ext Direct Clock Source 73 External Clock Source 73 External 10 MHz Reference Clock Source 73 F frequency range 14 front panel 15 front panel inputs 16...

Page 90: ...nditions 7 power supply 8 safety 7 ventilation 10 RZ 71 S safety requirements 7 saving settings 83 scope setup 63 setting up advanced signals 27 generic signals 27 signal generation conbining paramete...

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