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MTCA.4 Rear Transition Module Concept
SIS8900 MTCA.4 Single Ended Input RTM
for SIS8300 Digitizer
SIS8900 RTM
The SIS8900 RTM is used to feed single ended -50 Ω ter-
minated- signals to the SIS8300 digitizer. Access to RTM _
CLK0, RTM_CLK1 and RTM_CLK2 and a couple of digital
I/O lines is implemented in addition.
Functionality
• MTCA.4 (µTCA for Physics) RTM implementation
• 8-Bit I/O expander for
I
2
C-bus
• 10 LEMO 00 connectors (FBM option)
• 50 Ohm input impedance
• -1 V,...,+1 V default input range
• analog signals can be routed to AC and DC input stage
• RJ45 jack for RTM clocks
• RJ45 jack for Digital I/O
• +5V, 250 mA power option for RJ45 jacks
• two metric on board pin headers for 6 LVDS input/output
signals each
The µTCA for Physics Rear Transition Module (RTM) concept is illustrated below. It allows to use the SIS8300
digitizer with a variety of transition boards. Functionality like fi ltering or down-conversion can be offl oaded from
an external crate or on board design in a fl exible fashion.
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