CLINK3V48BT-133 National Semiconductor, CLINK3V48BT-133 Datasheet - Page 2

• Manufacturer Part Number: CLINK3V48BT-133
• Description: BOARD EVAL FOR DS90CR485, 486
• Manufacturer: National Semiconductor

Specifications of CLINK3V48BT-133

• Main Purpose: Interface, SerDes (Serializer / De-Serializer)
• Embedded: No
• Utilized Ic / Part: DS90CR485, DS90CR486
• Primary Attributes: Serializes 48 LVCMOS/LVTTL to 8 LVDS, 66 ~ 133 MHz
• Secondary Attributes: Transmits over 2 Meter 3M MDR LVDS Cable
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Table of Contents
Introduction......................................................................................... 3
Applications ........................................................................................ 5
Getting Started ................................................................................... 7
Board Configuration ........................................................................... 9
Pin & Signal Assignments ................................................................ 20
On-Board Termination Resistors ...................................................... 24
Troubleshooting................................................................................ 28
Additional Information....................................................................... 30
Other Resources .............................................................................. 32
DS90CR485/486 Evaluation Kit User Manual
Rev. 1.01
Introduction...................................................................................... 4
Evaluation Board Features.............................................................. 4
Contents of the Evaluation Kit ......................................................... 4
Setup ............................................................................................... 8
CLINK3V48BT-133 Evaluation Board Layout Silkscreen .............. 10
Power Connection ......................................................................... 11
Transmitter CLKIN Input Clock...................................................... 12
Default Switch & Jumper Configuration......................................... 13
Alternative Switch & Jumper Configurations ................................. 15
Power Down mode ........................................................................ 15
Cable Deskew ............................................................................... 16
DS_OPT ........................................................................................ 17
Transmitter PRBS Generator Mode .............................................. 19
LVDS Cable Sense (TSEN) Status Flag ....................................... 19
IDC Connector............................................................................... 21
MDR Connector............................................................................. 22
Probing LVDS Signals................................................................... 22
Switches ........................................................................................ 23
Jumpers......................................................................................... 23
Transmitter LVCMOS/LVTTL Data Input Termination Resistors... 25
Receiver LVDS Input Termination ................................................. 26
Optional Receiver LVCMOS/LVTTL Output Termination Resistors
(Unpopulated)................................................................................ 27
Troubleshooting............................................................................. 29
Trouble shooting chart:.................................................................. 29
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