Description
Orolia’s CDM-5 clock distribution module is a PCIe card that provides 10MHz and 1PPS signals for up to five devices that need tight and precise synchronization. The clock distribution module is ideal for PCIe-based Software-Defined Radios (SDR) installed in rack-mount or desktop PCs, and can also be used for any other applications that require a precise PC-based timing reference.
Two Operating Modes
- The CDM-5 clock distribution module features two operating modes—internal or external— that are selected with the bracket-mounted switch.
- In internal mode, the CDM-5’s internal clock signal is extracted from the onboard high-grade oven-controlled crystal oscillator (OCXO).
- When operating in external mode, the CDM-5 accepts input signals in the form of 10MHz and 1PPS, which are then re-distributed via five matched-length traces. Split signals are amplified to maintain the power level across all distributed paths.
- Additionally, the CDM-5 will regenerate 1PPS from an external 10MHz-only source if a 1PPS source is not available.
- The selection between internal or external mode is achieved through the bracket-mounted switch.
