Date: 24/09/2009
Improved crystal oscillator clock modules with LVDS interface from ON Semiconductor
ON Semiconductor has announced the expansion of its PureEdge family of high accuracy crystal oscillator (XO) clock modules that provide total frequency stability of ±50 parts per million (ppm) and meet the clock generation requirements in low-voltage differential signaling (LVDS) and low-voltage positive emitter coupled logic (LVPECL) designs.
The NBXzzzzzz series of single- and dual-frequency modules provide ultra low jitter and ultra low phase noise LVDS and LVPECL differential outputs respectively. The suggested applications include frequency control and high accuracy clock trees in high speed LAN and WAN networking equipment, telecom base stations, storage systems and high-end computing platforms.
All the new modules use a low frequency, high Q fundamental mode crystal and analog Phase Lock Loop (PLL) multiplier to provide the high accuracy single- or dual-output frequency. Typical RMS phase jitter is at 0.5 picoseconds (ps) when output Single Side Band (SSB) is integrated between 12 kilohertz (kHz) and 20 megahertz (MHz).
The below table represents the NBXzzzzzz series with an operating voltage range from 2.5V to 3.3V, with LVDS and LVPECL interfaces.
Device Output Frequency (MHz) Application
NBXSPA008LNHTAG 161.1328 Networking, 10GE, 10G LAN,
NBXDPA012LNHTAG 106.25 / 212.50 1x 2x Fibre Channel
NBXDPA015LNHTAG 200.00 / 400.00 Servers, Networking, Host Bus Adapter
NBXDPA017LNHTAG 156.25 / 312.50 Ethernet, Networking
NBXDPA018LNHTAG 155.52 / 311.04 SONET, SDH, Telecom
NBXDPA019LNHTAG 125.00 / 250.00 PCIe, PCI, High-End Computing, Networking
NBXSPA022LNHTAG 187.50 12 Gb/s Ethernet Clock
NBXSBA024LNHTAG 622.08 SONET OC-192, Telecom
NBXSBA025LNHTAG 425.00 4x Fibre Channel
NBXSBA030LNHTAG 175.00 Networking, ASIC
NBXSBA031LNHTAG 340.00 Networking, PON, Mixer
"Delivering high precision across a variety of operating conditions, ON Semiconductor's latest PureEdge clock modules provide the accuracy and reliability demanded by new and emerging LVDS and LVPECL clock tree designs," said Ryan Cameron, director, custom industrial and timing products business unit at ON Semiconductor. "What's more, these silicon based devices are simpler to manufacture and offer more flexibility with better performance and lead time than conventional quartz-based alternatives, helping OEMs to reduce costs without sacrificing performance."
Package: Hermetically sealed 5.0 mm x 7.0 mm x 1.90 mm ceramic CLCC-6 SMD package
Price: Each $4.50 for 100 pieces
Availability: Now
For more details visit www.onsemi.com