Teledyne LeCroy Kibra DDR - Manual (Page 21)

Kibra DDR Protocol Analyzer User Manual 19
DDR Interposer Teledyne LeCroy
1.5.2 Kibra 380 or Kibra 480 Slot 2 Interposer
Interactions among up to 8 ranks over two slots are analyzed.
The Kibra 380 Slot 2 Interposer is shown below. Do not leave the second interposer
connected if it is not probing a DIMM on the HUT. Leaving it unconnected will cause
some signals to float, causing false errors to be reported in the trace.
Figure 1.7: Slot 2 Interposer
1.5.3 External Trigger Out
Pulse Width = 280 ns
Pulse Voltage = 3.3 Volts into 1 MegOhms
Pulse Voltage = 2.7 Volts into 50 Ohms
Pulse is positive going.
Accumulated Latency from DDR Event to Pulse out at SMA terminal:
DIMM_CLK=400MHz 125 ns
DIMM_CLK=533MHz 105 ns
DIMM_CLK=667MHz 105 ns
DIMM_CLK=800MHz 100 ns
All measurements are  10 ns