Toshiba's Spur Canceled Clock Generator Recovers Receiver Sensitivity in Wireless SoCs

TOKYO — (BUSINESS WIRE) — June 14, 2016Toshiba Corporation (TOKYO:6502) has developed a spur canceled clock generator (SCCG) that recovers receiver sensitivity of wireless connectivity IC. The SCCG recovers receiver sensitivity by suppressing the spur, interference that originates from the clock signal, and achieves receiver sensitivity of -93 dBm for all channels in Bluetooth® Smart ICs. Toshiba will announce this advance at VLSI Circuits Symposium 2016, the international conference on semiconductor devices held in Honolulu, Hawaii on June 15.

This Smart News Release features multimedia. View the full release here: http://www.businesswire.com/news/home/20160614005558/en/

Circuit diagram of wireless connectivity IC (Graphic: Business Wire)

Circuit diagram of wireless connectivity IC (Graphic: Business Wire)

Recent wireless connectivity ICs integrate analog blocks, such as RF circuits, digital blocks, and mixed signal blocks, such as AD converters, on one chip. However, some of the harmonics of the reference clock signal for AD converters and digital circuits, known as clock spurs, degrade receiver sensitivity. Conventional techniques to recover sensitivity have resulted in issues with additional power consumption, chip size and development costs.

Toshiba’s solution is a clock generator that suppresses spur by delaying some parts of the clock. This clock delay generates two kinds of clock spurs that have reverse phase with the same amplitude, which cancel each other out. Since the generator’s power consumption is 18μW and the size is 40μm×120μm, clock spur is suppressed without any increase in power consumption or size. This approach recovers 4dB of sensitivity degraded by the spur, and applied to Bluetooth® Smart IC achieves -93dBm receiver sensitivity.

The spread of such applications as wearable devices is boosting demand for wireless connectivity ICs. Toshiba will proactively continue to expand its line-up of high performance wireless ICs, and plans to launch a Bluetooth® Smart IC with the SCCG this summer.

* Bluetooth is a registered trademark owned by the Bluetooth SIG; Toshiba uses them under license.

About Toshiba
Toshiba Corporation, a Fortune Global 500 company, channels world-class capabilities in advanced electronic and electrical product and systems into three focus business fields: Energy that sustains everyday life, that is cleaner and safer; Infrastructure that sustains quality of life; and Storage that sustains the advanced information society. Guided by the principles of The Basic Commitment of the Toshiba Group, “Committed to People, Committed to the Future”, Toshiba promotes global operations and is contributing to the realization of a world where generations to come can live better lives.

Founded in Tokyo in 1875, today’s Toshiba is at the heart of a global network of 550 consolidated companies employing 188,000 people worldwide, with annual sales surpassing 5.6 trillion yen (US$50 billion). (As of March 31, 2016.)
To find out more about Toshiba, visit www.toshiba.co.jp/index.htm



Contact:

Toshiba Corporation
Storage & Electronic Devices Solutions Company
Koichi Tanaka / Kota Yamaji
Communication IR Promotion Group
Business Planning Division
Phone: +81-3-3457-3576
Email Contact




Review Article Be the first to review this article

Featured Video
Editorial
More Editorial  
Jobs
Mechanical Designer/Engineer for Palo Alto Networks at Santa Clara, CA
Technical Support Engineer for EDA Careers at Freemont, CA
Lead Java Platform Engineer IOT-WEB for EDA Careers at San Francisco Area, CA
Staff Software Engineer - (170059) for brocade at San Jose, CA
ASIC/FPGA Design Engineer for Palo Alto Networks at Santa Clara, CA
Technical Support Engineer EU/Germany/UK for EDA Careers at N/A, United Kingdom
Upcoming Events
Zuken Innovation World 2017 at Hilton Head Marriott Resort & Spa Hilton Head Island NC - Apr 24 - 26, 2017
2017 SEMICON Southeast Asia at SPICE Arena Penang Malaysia - Apr 25 - 27, 2017
EDI CON China 2017! at Shanghai Convention & Exhibition Center of International Sourcing (SHCEC) No.2739 West Guangfu Road Putuo District, Shanghai (200062) China - Apr 25 - 27, 2017
2017 IoT Developers Conference at Santa Clara Convention Center California - Apr 26 - 27, 2017
DAC2017



Internet Business Systems © 2017 Internet Business Systems, Inc.
595 Millich Dr., Suite 216, Campbell, CA 95008
+1 (408)-337-6870 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering TechJobsCafe - Technical Jobs and Resumes GISCafe - Geographical Information Services  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy Policy