To accommodate the explosion in mobile data demands created by smart phones utilizing 3G or 4G wireless networks, small cell technology has been touted as one of the most cost-effective approaches to address this issue. Similar to macrocell base stations, small cell base stations require tight frequency accuracy to ensure seamless handovers between macrocells and small cells or femtocells for uninterrupted cellular service. Typically, the frequency accuracy needed for small cell application is 0.25ppm or better, and can be as tight as 0.1ppm over operating temperature ranges.
Taitien Electronics, a leading provider of frequency control solutions, has over 30 years of experience in designing and manufacturing high precision TCXOs for various demanding applications. Specifically developed for tight frequency stability and minimal form factor required for applications such as the small cell base stations, Taitien’s TW series, with a small footprint at 5×3.2mm, provide cost-effective solutions for system clocks as well as flexibility in hardware design in small cell devices. With proprietary testing capability, Taitien is able to perform 100% precision temperature and holdover testing on TCXO products to ensure the performances meeting the demanding requirements for small cell base stations. Taitien’s TW TCXOs can achieve 0.1ppm or better for the 24-hr frequency drift required for many of the small cell applications. For small cell applications requiring exceptional phase noise performance, Taitien TT series TCXOs, with best-in-class frequency stability and capability of achieving -145dBc/Hz @1kHz offset, offer cost-effective alternatives to OCXOs.
In addition, Taitien’s TCXO product lines provide wide-range of frequency selection to support the diverse cellular bands often encountered in 4G/LTE small cell deployments. Taitien has been teaming up with major players in the base station transceiver design community to provide the right timing solution to accelerate the deployment of small cells. Maxim Integrated Products, the leader in femtocell transceiver designs, has incorporated Taitien’s TW series TCXO as the reference clock source for MAX2550-2553 for 3G femtocell radio transceivers and MAX2580 for 4G/LTE small cell radio transceivers as part of the reference designs.
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