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18

Keysight U4205A Direct Connect 34-Channel Mictor Probe

2

Mechanical Considerations

NOTE

Do not connect the following pins. These pins are +5 volt supply and DC return

for analysis probes.
+5 V dc 1

Ground 3
Do not connect the following pins. They are used by the Keysight logic analyzer

with an emulator or analysis probe to program or read target information.
SCL 2
SDA 4

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Summary of Contents for U4205A

Page 1: ...Keysight U4205A Direct Connect 34 Channel Mictor Probe User Guide ...

Page 2: ...2 Keysight U4205A Direct Connect 34 Channel Mictor Probe ...

Page 3: ...ay be used or copied only in accordance with the terms of such license Restricted Rights Legend If software is for use in the performance of a U S Government prime contract or sub contract Software is delivered and licensed as Commercial computer soft ware as defined in DFAR 252 227 7014 June 1995 or as a commercial item as defined in FAR 2 101 a or as Restricted computer software as defined in FA...

Page 4: ...4 Keysight U4205A Direct Connect 34 Channel Mictor Probe ...

Page 5: ... required 9 Maximum state speed supported 9 The U4205A 34 Channel 38 pin Single Ended Mictor Probe 10 2 Mechanical Considerations Characteristics 12 Probe Dimensions 13 MICTOR Connector Dimensions 14 Support Shroud Dimensions 15 Footprint Dimensions 16 U4205A 38 pin single ended probe pin out table 17 3 Operating U4205A Probe Equivalent Probe Load 20 Measured versus modeled input impedance 21 4 Ci...

Page 6: ...e 26 Signal Access 27 Labels split across probes 27 Re ordered bits 27 5 Recommended Reading For More Information 30 MECL System Design Handbook 30 High speed Digital Design 30 Designing High speed Target Systems for Logic Analyzer Probing 30 6 Connectors and Shrouds Ordering Probing Connectors and Shrouds 32 7 Safety Information Safety Symbols 34 Informations relatives à la sécurité 36 Symboles d...

Page 7: ...ctor Probe User Guide 1 U4205A Overview U4205A At a Glance 8 Introduction to U4205A Use 9 The U4205A 34 Channel 38 pin Single Ended Mictor Probe 10 This chapter describes features and specifications of U4205A 34 channel single ended Mictor probe ...

Page 8: ...e information on Keysight logic analyzers refer to http www keysight com find logicanalyzer For more information on your specific analyzer refer to the Online help The U4205A 34 channel 38 pin Single ended Mictor Probe Compatible with the 16850 Series and U4154A Compatible with boards designed for Keysight E5346A 38 pinprobe 34 Channels State speeds up to 600 Mb s 300 mVpeak to peaksensitivity 38 ...

Page 9: ...nect probe U4205A Direct Connect 34 Channel 38 pin single ended probe Number of probes required This table shows how many probes are required to provide connections to all channels of your logic analyzer module Table 1 Number of probes required Maximum state speed supported This table gives you the maximum state speed that is supported by the combination of a probe and your logic analyzer module T...

Page 10: ...ith the Keysight 16851A 16852A 16853A and 16854A portable logic analyzers and the U4154A logic analyzer module It is capable of capturing state synchronous data at clock speeds up to 600 MHz at data rates up to 600 Mb s with signal amplitudes as small as 300 mV peak to peak The Keysight E5346 68701 or E5346 68700 probing connector kit is required for connecting the U4205A probe to your target syst...

Page 11: ...tions Characteristics 12 Probe Dimensions 13 MICTOR Connector Dimensions 14 Support Shroud Dimensions 15 Footprint Dimensions 16 U4205A 38 pin single ended probe pin out table 17 This chapter describes mechanical considerations and dimensions of U4205A 34 channel single ended Mictor probe ...

Page 12: ...hanical Considerations Characteristics Electrical considerations such as equivalent probe loads input impedance and time domain transmission are shown in chapters 3 and 4 of this manual Other characteristics are dependent on the logic analyzer module you are using ...

Page 13: ...A Direct Connect 34 Channel Mictor Probe 13 Mechanical Considerations 2 Probe Dimensions The following figure shows the dimensions of the 38 pin single ended probe Figure 3 U4205A 38 pin single ended probe dimensions ...

Page 14: ... MICTOR Connector Dimensions The U4205A probe is compatible with target systems designed for the Keysight E5346A 38 pin probe This probe requires a probe kit that contains MICTOR connectors and shrouds Refer to page 32 for the kit part numbers Figure 4 MICTOR 38 pin connector dimensions ...

Page 15: ...port Shroud Dimensions Support shrouds are not required but are recommended if pulling forces may be applied to the cables that could cause the connector to be dislodged Refer to page 32 for the kit part numbers Figure 5 Support shroud dimensions for the MICTOR 38 pin connector Bottom View ...

Page 16: ...echanical Considerations Footprint Dimensions Use the following 38 pin MICTOR connector footprint and support shroud mounting hole dimensions to design your target system board Figure 6 38 pin MICTOR connector footprint and support shroud mounting hole dimensions ...

Page 17: ... ended Probe Logic Analyzer Signal Name Mictor Pin Channel Pod Signal Name Mictor Pin Channel Pod Clk 5 Clk Which ever pod is connected to Even on the U4205A probe Clk 6 Clk Whichever pod is connected to Odd on the U4205A probe D 15 7 12 D 15 8 15 D 14 9 14 D 14 10 14 D 13 11 13 D 13 12 13 D 12 13 12 D 12 14 12 D 11 15 11 D 11 16 11 D 10 17 10 D 10 18 10 D 9 19 9 D 9 20 9 D 8 21 8 D 8 22 8 D 7 23 ...

Page 18: ...s NOTE Do not connect the following pins These pins are 5 volt supply and DC return for analysis probes 5 V dc 1 Ground 3 Do not connect the following pins They are used by the Keysight logic analyzer with an emulator or analysis probe to program or read target information SCL 2 SDA 4 ...

Page 19: ...t U4205A Direct Connect 34 channel Mictor Probe User Guide 3 Operating U4205A Probe Equivalent Probe Load 20 This chapter describes load specifications for operating U4205A 34 channel single ended Mictor probe ...

Page 20: ... 3 Operating U4205A Probe Equivalent Probe Load The equivalent probe load for the U4205A probe is shown in the figure below It includes the 38 pin MICTOR connector and the target connector The model is accurate up to 1 GHz Figure 7 Equivalent load for U4205A ...

Page 21: ...A Probe 3 Measured versus modeled input impedance The U4205A probes have an input impedance which varies with frequency and depends on which accessories are being used The following graph shows the input impedance of the probe Figure 8 Measured versus modeled input impedance ...

Page 22: ...22 Keysight U4205A Direct Connect 34 Channel Mictor Probe 3 Operating U4205A Probe ...

Page 23: ...rcuit Board Design Transmission Line Considerations 24 16850 Series and U4154A Data and Clock Inputs per Operating Mode 25 Thresholds 26 Signal Access 27 This chapter describes design considerations for circuit board layout for U4205A 34 channel single ended Mictor probe ...

Page 24: ... PC board material with a dielectric constant of 4 3 for inner layer traces microstrip For example A 0 28 cm long stub in an inner layer has a propagation delay of 20 ps Therefore for a signal with a rise time of 100 ps or greater a 0 28 cm stub will behave like a capacitor The trace capacitance per unit length will depend on the trace width and the spacing to ground or power planes If the trace i...

Page 25: ...c analyzer Table 4 Data clock inputs per operating mode U4154A and 16850 Series Operating Mode U4205A Synchronous state analysis maximum 800 Mb s 32 data plus 2 clock inputs see Note below Eye scan mode 800 Mb s 32 data plus 2 clock inputs see Note below Timing mode 32 data plus 2 clock inputs NOTE In synchronous state analysis mode and in the eye scan mode there is one clock input which must be r...

Page 26: ...38 pin Single Ended Mictor Probe All inputs in the U4205A 38 pinprobearesingle ended The U4205A probe does not have a threshold reference input When you use the U4205A you adjust the logic threshold in the user interface The clock input on the U4205A is single ended The clock threshold may be adjusted independent of the data ...

Page 27: ...ross more than one pod may or may not apply depending upon the actual configuration Re ordered bits If bits need to be reordered within a label this leads to additional restrictions in triggering Specifically equalities can be used to evaluate the value of a label with reordered bits but inequalities cannot be used You may be able to avoid the need to reorder bits in a label by routing signals to ...

Page 28: ...28 Keysight U4205A Direct Connect 34 Channel Mictor Probe 4 Circuit Board Design ...

Page 29: ...U4205A Direct Connect 34 Channel Mictor Probe User Guide 5 Recommended Reading For More Information 30 This chapter lists the recommended reading for more information about systems and high speed digital design ...

Page 30: ...rom ON Semiconductor on the web Go to http onsemi com Click on On line ordering under Documentation Click on the link General search Type in HB205 in the Document number field Click Submit To view the document online click on PDF in the right hand column titled PDF MFAX Or order a hardcopy of the handbook on line High speed Digital Design Johnson Howard W and Martin Graham High speed Digital Desig...

Page 31: ...205A Direct Connect 34 Channel Mictor Probe User Guide 6 Connectors and Shrouds Ordering Probing Connectors and Shrouds 32 This chapter lists the Keysight part numbers of the Probes and their corresponding Targets ...

Page 32: ...s and shrouds Table 5 Keysight part numbers For Probes Model Keysight Part Number Consists of For Target PC Board Thickness U4205A E5346 68701 5 MICTOR Connectors 5 Support Shrouds up to 1 57 mm 0 062 in E5346 68700 5 MICTOR Connectors 5 Support Shrouds 1 575 to 3 175 mm 0 062 to 0 125 in 1252 7431 1 MICTOR Connector n a AMP part 2 767004 2 1 MICTOR Connector n a E5346 44701 1 Support Shroud up to...

Page 33: ...ound terminal at the power outlet Any interruption of the protective grounding conductor or disconnection of the protective earth terminal will cause a potential shock hazard that could result in personal injury Fuses See the user s guide or operator s manual for information about line fuse replacement Some instruments contain an internal fuse which is not user accessible Do Not Operate in an Expl...

Page 34: ...t proceed beyond a WARNING notice until the indicated conditions are fully understood and met Symbol Description Direct current Alternating current Both direct and alternating current Three phase alternating current Earth ground terminal Protective earth ground terminal Frame or chassis ground terminal Terminal is at earth potential Equipotentiality N Neutral conductor on permanently installed equ...

Page 35: ...sh switch Equipment protected throughout by DOUBLE INSULATION or REINFORCED INSULATION Caution refer to accompanying documentation Caution risk of electric shock Do not apply around or remove from HAZARDOUS LIVE conductors Application around and removal from HAZARDOUS LIVE conductors is permitted Caution hot surface Ionizing radiation CAT I IEC Measurement Category I CAT II Measurement Category II...

Page 36: ... instru ment doivent être reliés à la terre afin de limiter les risques d électrocution Le contact à la terre doit être solidement connecté à une borne de terre de sécurité au niveau de la prise de courant Toute interruption du conducteur de protection mise à la terre ou tout débranchement de la borne de terre de protection donne lieu à un risque d électrocution pouvant entraîner des blessures gra...

Page 37: ...pectées La mention AVERTISSEMENT signale un danger pour la sécurité de l opérateur Si la manœuvre ou le procédé correspondant n est pas exécuté correctement il peut y avoir un risque pour la santé des personnes En présence d une mention AVERTISSEMENT il convient de s interrompre tant que les conditions indiquées n ont pas été parfaitement comprises et respectées Symboles Description Courant contin...

Page 38: ...osition Marche d un interrupteur par bouton poussoir bi stable Position Arrêt d un interrupteur par bouton poussoir bi stable Appareil entièrement protégé par DOUBLE ISOLATION ou ISOLATION RENFORCÉE Attention Consultez la documentation fournie Attention danger d électrocution Ne pas appliquer ou enlever sur des conducteurs SOUS TENSION DANGEREUSE Application ou retrait autorisés sur les conducteur...

Page 39: ...r Probe 39 CAT II Appareil de mesure de catégorie II selon la norme CEI applicable CAT III Appareil de mesure de catégorie III selon la norme CEI applicable CAT IV Appareil de mesure de catégorie IV selon la norme CEI applicable Symboles Description ...

Page 40: ...40 Keysight U4205A Direct Connect 34 Channel Mictor Probe ...

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