Maxim Introduces The DS4625, a Dual-Output LVPECL Crystal Oscillator for Communications Applications

By pur, Monday, November 2nd, 2009
Category: Communication, RF, Radio, Semiconductor

The DS4625 device produces dual-output-frequency combinations ranging from 100MHz to 625MHz, allowing designers to replace two oscillators with a single device. Packaged in a 5mm x 3.2mm LCC, the DS4625 is 55% smaller than conventional solutions (5mm x 7mm). This device ensures leading-edge jitter performance [< 1.0psRMS (12kHz to 20MHz)] for high-current (95mA to 105mA, typ), high-frequency (> 100MHz), differential-output (LVPECL) applications. The DS4625 is thus ideal for communications systems that require high-performance clock generation such as Fibre Channel, Ethernet, 10G Ethernet, SONET/SDH, InfiniBand®, GPON, BPON, PCI Express®, and SAS/SATA. The DS4625 solves the heat dissipation problems typically encountered by small ceramic packages in high-frequency, high-current designs. An integrated thermal pad provides thermal relief for the crystal element, thus ensuring reliable operation over the entire -40°C to +70°C temperature range. The DS4625 is manufactured using fundamental AT-cut crystal technology—with no overtones—and a low-noise PLL-based oscillator designed in Maxim’s SiGe foundry…

DS4625

MAXIM DS4625
(Picture: Maxim)


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