Clock distribution and local oscillator of a digital low-level radio-frequency board for SSRF

SYNCHROTRON SCIENCE AND TECHNOLOGY

Clock distribution and local oscillator of a digital low-level radio-frequency board for SSRF

FU Zechuan，

ZHAO Yubin，

LIU Jianfei，

ZHAO Zhentang

Nuclear Science and Techniques

pp.7-10

Published in print 20 Feb 2010

DOI：10.13538/j.1001-8042/nst.21.7-10

30200

In the storage ring RF system of Shanghai Synchrotron Radiation Facility, the clock distribution and the local oscillator are two parts of the digital low level radio frequency hardware board. In this paper, we designed and produced the clock distribution and the local oscillator board using the AD9858 and AD9510 chips. The results show that the phase noise of the local oscillator signal is lower than 100dBc/Hz with 50 kHz offset.

Digital low-level radiofrequencyClock distribution systemLocal oscillatorDigital low-level radiofrequency board

References

[1]

Zhang T X, Zhao Y B, Yin C K, et al. HPLP.B, 2008, 20(6):1048-1052. (in Chinese)

[2]

Wang F, Wang G W. Nucl Tech, 2004, 27(1):18-21.

[3]

Zhao Y B, Yin C K, Zhang T X, et al. Chin Phys C 2008, 32 (9): 758-760.

[4]

Doolittle L, LO C C, Monroy M, et al.

The SNS front end LLRF system

. Proceeding of LINAC2002. 373-375.

[5]

Ma H J, Champion M, Crofford M, et al.

SNS low-level RF control system: Design and performance

. Particle accelerator conference 2005. 16-20 May 2005, 3479-3481.

[6]

Champion M, Crofford M, Ma H, et al.

The Spallation neutron source accelerator low level RF control system

. Particle accelerator conference 2003. 12-16 May 2003, 3377-3379.

[7]

Karol P, Krzysztof T P, Wojciech J, et al.

FPGA-based multichannel optical concentrator SIMCON 4.0 for TESLA cavities LLRF control system

. Photonics applications in astronomy, communications, industry, and high-energy physics experiments 2006, proceedings of SPIE, 6347.

[8]

Maxim Application Note 3359

. http://www.maxim-ic.com/an3359

[9]

Dai W J.

The method of phase noise measurement using a spectrum analyzer

. Foreign Electron Measure, 2001, 5: 11-12. (in Chinese)

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