VCU1287 IBERT Getting Started Guide
11
UG1203 (v2016.4) December 15. 2016
Chapter 1:
VCU1287 IBERT Getting Started Guide
GTH Transceiver Clock Connections
See
to identify the P and N coax cables that are connected to the CLK0 reference
clock inputs. Connect these cables to the SuperClock-2 module as follows:
• CLK0_P coax cable
→
SMA connector J7 (CLKOUT1_P) on the SuperClock-2 module
• CLK0_N coax cable
→
SMA connector J8 (CLKOUT1_N) on the SuperClock-2 module
Note:
Any one of the five differential outputs from the SuperClock-2 module can be used to source
the GTH reference clock. CLKOUT1_P and CLKOUT1_N are used here as an example.
MGT TX/RX Loopback Connections
See
to identify the P and N coax cables that are connected to the four receivers
(RX0, RX1, RX2, and RX3) and the four transmitters (TX0, TX1, TX2, and TX3). Use eight SMA
female-to-female (F-F) adapters (
) to connect the transmit and receive cables as
shown in
:
• TX0_P
→
SMA F-F Adapter
→
RX0_P
• TX0_N
→
SMA F-F Adapter
→
RX0_N
• TX1_P
→
SMA F-F Adapter
→
RX1_P
• TX1_N
→
SMA F-F Adapter
→
RX1_N
• TX2_P
→
SMA F-F Adapter
→
RX2_P
• TX2_N
→
SMA F-F Adapter
→
RX2_N
• TX3_P
→
SMA F-F Adapter
→
RX3_P
• TX3_N
→
SMA F-F Adapter
→
RX3_N
Note:
To ensure good connectivity, it is recommended that the adapters be secured with a wrench;
however, do not over-tighten the SMAs.
X-Ref Target - Figure 1-6
Figure 1-6:
SMA F-F Adapter
X15545-121416