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6 and 8 output 3.3V clock generators

19th June 2015


Integrated Device Technology Inc (IDT) has added 6 and 8 output 3.3V clock generators to its low-power PCI Express (PCIe) portfolio of clock generators.

The 3.3V family of devices joins the existing 1.5V and 1.8V families. The new products operate at approximately 100 milliwatts, making them the lowest power 3.3V PCIe clock generators on the market. By operating at roughly one-fifth the power of traditional PCIe clock devices, the IDT 3.3 V devices effectively eliminate thermal concerns.

With their integrated terminations, the 9FGL06 and 9FGL08 devices’  ultra-compact 5x5- and 6x6-millimetre packages can deliver up to a 90% reduction in board area. Factory programmable versions provide quick turn device optimisations to meet exact customer requirements.

The SoC-friendly devices greatly exceed  the phase jitter requirements of the PCIe Gen3 specification in anticipation of the upcoming PCIe Gen4 specification, and are also suitable for applications needing less than 3ps rms 12k-20M phase jitter, such as gigabit Ethernet and other high-performance applications.

The 3.3 V devices are pin-compatible to IDT’s highly successful 1.5V 9FGU-series and 1.8 V 9FGV-series PCIe clock generators. The timing family targets power- and space-constrained designs in both consumer and high-performance applications, providing enterprise-level performance while lowering the total cost of ownership.

Potential applications include multi-function printers, servers, set-top boxes and solid state drives. The entire family is compliant with PCIe generations 1, 2 and 3.

The 3.3 V (L-series) family offers industry firsts that include:

* Output-by-Output configuration of output impedances, allowing a single part to be used in mixed impedance environments without external termination components.

* Factory programmable versions that allow user-defined default configurations including output impedance, control input polarity, internal pull up or pull down resistors, and wake-on-LAN mode for the crystal oscillator.  This removes the need for practically all external glue logic.







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