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National Semiconductor DS15BA101, User Manual

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DriveCable02EVK User Manual 

 Evaluating 50-ohm Coaxial Cables 

  

The DriveCable02EVK can be used to evaluate 50-ohm coaxial cables.  Examples of 50-ohm coaxial 
cables are Belden 9914 and Andrew FSJ-50B. Figure 5 is a simplified block diagram of the configuration. 
 
 

Advantest D3186

Pattern Generator

Cable

Tektronix 

TDS 6154C

Oscilloscope

Cable Extender Chipset Evaluation Board
P/N:  DriveCable02EVK,  Rev. 2.0
Gigabits@ManyMeters

U1

U2

 

 

Figure 5.

 Test Setup for 50-ohm Coaxial Cable Evaluation 

 

Page 10 of 12 

Summary of Contents for DS15BA101

Page 1: ... Chipset DS15BA101 DS15EA101 Evaluation Kit USER MANUAL Part Number DriveCable02EVK NOPB For the latest documents concerning these products and evaluation kit visit lvds national com Schematics and gerber files are also available at lvds national com ...

Page 2: ... Manual Table of Contents Overview 3 Board Description 4 Setting Up the DriveCable02EVK Evaluation Kit 5 Evaluation with the 100 ohm Differential Balanced Cables 6 Evaluation with the 50 ohm Coaxial Cables 10 Page 2 of 12 ...

Page 3: ...ion of the chipset with 100 ohm differential cables such as twin axial and low cost CAT5e 6 7 twisted pair cables and 50 ohm coaxial cables The purpose of this document is to familiarize you with the DriveCable02EVK suggest the test setup procedures and instrumentation and guide you through some typical measurements that demonstrate performance of the chipset in typical applications Page 3 of 12 ...

Page 4: ...ut that is capable of demonstrating performance and all features of the DS15BA101 and DS15EA101 VDD Vbias GND Figure 1 DriveCable02EVK Board Connector Device Function JP1 U1 Select output amplitude JP2 U2 Output enable JP3 U1 Set input common mode voltage Optional Table 1 DriveCable02EVK Connector Device Function Cross Reference Page 4 of 12 ...

Page 5: ... This section provides a quick reference for setting up some typical test configurations using the DriveCable02EVK that will enable you to evaluate the solution with 100 ohm differential cables twin axial and twisted pair cables as well as 50 ohm coaxial cables Page 5 of 12 ...

Page 6: ...Adapter Cable Tektronix TDS 6154C Oscilloscope Cable Extender Chipset Evaluation Board P N DriveCable02EVK Rev 2 0 Gigabits ManyMeters U1 U2 Figure 2 Test Setup for 100 ohm Differential Cable Evaluation Note Connector Adapters are NOT included in this kit Currently RJ45 SMA adapters are available and can be ordered separately The part number is DS91C176EVK NOPB If cable assemblies have other than ...

Page 7: ...0 ohm SM0402 resistors in place of the C1 and C2 d There is a provision to add an optional resistor divider network R12 and R13 on the DS15BA101 inputs in case one desires biasing the input signal externally note there is already an internal biasing network on the DS15BA101 inputs In addition the JP3 connector provides signal biasing provision for a voltage source 3 Attach the connector adapters i...

Page 8: ...psets A B C and D The data in red was taken with the 0 5 UI jitter criteria while the data in blue was taken with the 0 25 UI jitter criteria 0 00 0 25 0 50 0 75 1 00 1 25 1 50 1 75 2 00 2 25 2 50 0 25 50 75 100 125 Cable Length m Maximum Data Rate Gbps A B C D A B C D Figure 3 DS15BA101 and DS15EA101 Performance with CAT5e Cable Page 8 of 12 ...

Page 9: ... B C and D The data in red was taken with the 0 5 UI jitter criteria while the data in blue was taken with the 0 25 UI jitter criteria 0 00 0 25 0 50 0 75 1 00 1 25 1 50 1 75 2 00 2 25 2 50 2 75 3 00 0 25 50 75 100 Cable Length m Maximum Data Rate Gbps A B C D A B C D Figure 4 DS15BA101 and DS15EA101 Performance with CAT7 Cable Page 9 of 12 ...

Page 10: ... coaxial cables are Belden 9914 and Andrew FSJ 50B Figure 5 is a simplified block diagram of the configuration Advantest D3186 Pattern Generator Cable Tektronix TDS 6154C Oscilloscope Cable Extender Chipset Evaluation Board P N DriveCable02EVK Rev 2 0 Gigabits ManyMeters U1 U2 Figure 5 Test Setup for 50 ohm Coaxial Cable Evaluation Page 10 of 12 ...

Page 11: ... that they comply with the DS15BA101 input requirements g If DC coupled interface is desired use 0 ohm SM0402 resistors in place of the C1 and C2 h There is a provision to add an optional resistor divider network R12 and R13 on the DS15BA101 inputs in case one desires bias the signal externally there is an internal biasing network on the DS15BA101 inputs In addition the JP3 connector provides sign...

Page 12: ...ets A and B The data in red was taken with the 0 5 UI jitter criteria while the data in blue was taken with the 0 25 UI jitter criteria 0 00 0 25 0 50 0 75 1 00 1 25 1 50 1 75 2 00 2 25 2 50 2 75 3 00 0 100 200 300 Cable Length m Maximum Data Rate Gbps A B A B Figure 6 DS15BA101 and DS15EA101 Performance with Belden 9914 Cable Page 12 of 12 ...

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Page 17: ...8 7628 7628 7628 Polyclad 370 HR 5oz 5oz 0 65 17 2 50 64 0 65 17 Lam 370HR 0025 1080 5 5 DSTF 24x18 E4 E5 10 08 256 1652 2116 Polyclad 370 HR 1 90 48 FOIL 5oz E6 Overall Board Thicknesses Over Conductor inches mm nom 0 0604 1 53 Customer Notes National Semiconductor Total thickness 060 006 Note pitch is equal to center to center spacing not edge to edge Pitch edge to edge spacing plus one trace wi...

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Page 29: ...for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parties have executed an agreement specifically governing such use Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications and acknowledge and agre...

Page 30: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments DRIVECABLE02EVK NOPB ...

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