Simplex G-LINK S-LINK LSC
Prototype of the G-LINK Link Source Card
(Circuit no. 680-1110-900)
The normal version does not use a socket for the Actel and the tantalium
capacitors are replaced by ceramic ones.
Note the ceramic (golden) package for the 40 MHz oscillator and the
3V3 drop down regulator in metal can.
The ceramic DIL components are only used in the radiation tests and
don't form part of the link.
The Simplex G-LINK Link Source Card (G-LSC) is an S-LINK compliant LSC.
It is based on the Hewlett Packard 5 Volt G-LINK transmitter HDMP-1024.
The G-LSC can work in conjunction with receiver boards that use the corresponding
receiver HDMP-1024, such as the G-LDC. The optical
transmitter uses a Methode 850 nm transceiver module of which the receiver
part is not used. For laboratory tests, also LEMO connectors may be mounted
to access directly the G-LINK serial outputs.
The board uses as much a possible components which should be able to
withstand radioactive radiation up to 10 KRad in the total lifetime of
10 year. Many components used are ESA qualified, although it is unsure
how many errors the G-LINK will generate when it is being irradiated. Zoltan
Meggyesi is performing radiation tests and will describe the results in
This card is designed for the PLD
irradiation test project and the "G-LINK
fanclub". The card is not commercially available.
Optical output (850 nm) with SC-type connector
Electrical output with dual LEMO connectors
Either internal 40 MHz clock or S-LINK clock input
All low-speed I/O of HP connected directly to the Actel chip
Measures optical received power
PCB design with state-of-the-art power decoupling
and layout for EMC
Can connect directly to any S-LINK FEMB such as PCI and PMC interfaces
and S-LINK test tools
Single Event Upset tolerant design techniques used for Actel design
S-LINK compatible LSC where the data comes from the S-LINK connector (16-bit@40MHz
full speed or 32-bit@40MHz half speed)
Four fixed datapatterns that can be sent (used for radiation tests)
||Design debugged (was easy, no errors at all :-). Five PCBs produced.
Four boards mounted with pattern generator built in in Actel. Will
be used in radiation testing.
S-LINK standard LSC file designed, but not tested.
||S-LINK LSC tested. Ordered five new PCBs (received ten)
|3 March 2000
||Six boards mounted, but not tested
||Boards tested and available via the S-LINK
CERN Engineering Data Management System (EDMS)
CERN - High
Speed Interconnect - S-LINK
Erik van der Bij - 15 January