May 13, 2014, Micrel Korea (CEO Young-Joon Oh, www.micrel.com ), an industry leader in high-performance linear and power solutions, as well as LAN, timing and communications solutions, announced the DSC400, a four-output Crystal-Less™ clock generator. This is Micrel's first MEMS-based timing product and leverages Micrel's proven PureSilicon™ MEMS technology to deliver exceptional jitter performance and stability, along with other additional device features. The device targets a wide range of applications, including communications and networks such as Ethernet 1G, 10GBASE-T/KR/LR/SR, FCoE, Storage Area Networks (SAN) such as FC, SATA, SAS, FTTH EPON, 10G-EPON, GPON, 10G-PON, HD/SD/SDI video and surveillance, and automotive, media and video, embedded and industrial.

“The DSC400 is a crystal-less multi-output clock generator, which, unlike other clock generators currently available on the market, does not require an external crystal for operation. Instead, it is based on an integrated MEMS resonator that interfaces with an internal PLL,” said Rami Kanama, group vice president of Micrel’s Timing and Communications business unit. “This technology improves performance and reliability by maintaining robust frequency stability over a wide operating temperature range.” “It also has very high resistance to shock and vibration, which slows down the aging process and extends the life of products in the system,” he said.

This device features low RMS phase jitter of less than 1 ps (typical) and high stability with options for ±25 ppm and ±50 ppm. Additionally, the DSC400 offers high supply noise rejection of -50 dBc and generates four outputs, each independently configurable to LVPECL, LVDS, HCSL, and LVCMOS formats. It supports a wide frequency range from 2.3 MHz to 460 MHz, offers excellent shock and vibration immunity (MIL-STD-88 certified), high stability, and a wide supply voltage range from 2.24 V to 3.6 V. The solution is RoHS compliant and qualified to MIL-STD-883 and AEC-Q100 for automotive applications. It also features a wide operating temperature range (-20°C to 70°C for commercial extended versions, -40°C to 85°C for industrial) and is available in a 20 QFN footprint (5mm x 3.2mm) package size.