Clock generator's integrated crystal saves space & cost

27th May 2015
Barney Scott

Integrated Device Technology has announced updated VersaClock 5 programmable clock generators, featuring built-in crystals for a simpler, more cost-effective approach to electronic systems timing. The 5P49V5933 and 5P49V5935 deliver the features of IDT’s VersaClock 5 clock generators while reducing PCB space and cost through the integration of a crystal.

With an integrated frequency source, designers no longer have to incorporate an external crystal in their design and are spared the effort involved with frequency tuning.

VersaClock 5 programmable timing devices feature excellent jitter performance at half the power of competing devices and offer universal output pairs that are independently configurable as LVDS, LVPECL, HCSL, or dual LVCMOS. The multi-output timing solution consolidates system components with superior design flexibility, making it ideal for cost-sensitive, low-power consumer as well as low-jitter communications applications. Integration of a crystal effectively turns the device into a programmable crystal oscillator, and removes even more components from a design.

The 5P49V5933 can generate up to two output frequencies, while the 5P49V5935 generates up to four. The devices come in compact 4mm2 packages. An impressive 700fs RMS phase jitter performance enables customers to meet the requirements of 1G/ 10G Ethernet and PCI Express Gen 1, 2, 3 along with other high-performance interconnects, and meets the clock-generation requirements for SoCs and FPGAs. The devices feature a low core current consumption of only 30mA.

“By integrating a crystal into our latest VersaClock 5 devices, we have developed a unique and innovative timing product with a host of customer benefits,” said Kris Rausch, General Manager, Multi-Market Timing Division, IDT. “Design teams get all the benefits of the original VersaClock 5 - exceptional jitter and power performance - plus the time and cost saving of not dealing with a crystal.”

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