| | 1 | [[TracNav(HardwareUsersGuides/CM-MMCX/TOC)]] |
| | 2 | = CM-MMCX User Guide: Clock I/O = |
| | 3 | |
| | 4 | The CM-MMCX clock module routes external clock signals to MMCX connectors. There are four connectors on the module: |
| | 5 | |
| | 6 | ||= Connector =||= Signal =||= WARP v3 Connection =|| |
| | 7 | || RF Ref Out || RF reference clock output || RF ref clock buffer (U20) CLKOUT0 || |
| | 8 | || RF Ref In || RF reference clock Input || RF ref clock buffer (U20) CLKIN2 || |
| | 9 | || Samp Out || Sampling clock output || Sampling clock buffer (U46) CLKOUT1 || |
| | 10 | || Samp In || Sampling clock Input || Sampling clock buffer (U46) CLKIN2 || |
| | 11 | |
| | 12 | Refer to the [wiki:HardwareUsersGuides/WARPv3/Clocking WARP v3 Clocking user guide] for details on the clock buffers. |
| | 13 | |
| | 14 | == Connectors == |
| | 15 | The MMCX connectors are standard-polarity, standard-gender 50-ohm MMCX connectors. |
| | 16 | |
| | 17 | 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 [http://www.digikey.com/product-detail/en/415-0066-024/J731-ND/726044 Digi-Key J731-ND]). |
| | 18 | |
| | 19 | [[Image(wiki:HardwareUsersGuides/CM-MMCX/files:CM-MMCX_versions.jpg)]] |
