Version 1 (modified by murphpo, 11 years ago) (diff) |
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CM-MMCX User Guide: Clock I/O
The CM-MMCX clock module routes external clock signals to MMCX connectors. There are four connectors on the module:
Connector | Signal | WARP v3 Connection |
---|---|---|
RF Ref Out | RF reference clock output | RF ref clock buffer (U20) CLKOUT0 |
RF Ref In | RF reference clock Input | RF ref clock buffer (U20) CLKIN2 |
Samp Out | Sampling clock output | Sampling clock buffer (U46) CLKOUT1 |
Samp In | Sampling clock Input | Sampling clock buffer (U46) CLKIN2 |
Refer to the WARP v3 Clocking user guide for details on the clock buffers.
Connectors
The MMCX connectors are standard-polarity, standard-gender 50-ohm MMCX connectors.
The CM-MMCX PCB can be assembled with either MMCX jacks or MMCX plugs, illustrated in the figure below. For connections between WARP v3 kits we recommend CM-MMCX modules with MMCX jacks, which will allow use of readily available cable assemblies with MMCX plugs (like Digi-Key J731-ND).