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CMOS Clock Approach Breaks Quartz Tradition

This technology provides accurate frequency generation entirely in standard CMOS, a task formerly accomplished exclusively with quartz resonators and crystal oscillators. (ProQuest: denotes formula omitted.) Clock generation generally evokes images of quartz crystals and quartzcrystal oscillators.

Publication: Microwaves & RF

quartz clock

quartz clock A clock based on a piezoelectric crystal of quartz (see piezoelectric effect ). Each quartz crystal has a natural frequency of vibration, which depends on its size and shape. If such a crystal is introduced into an oscillating electronic circuit that resonates at a frequency very close

Publication: A Dictionary of Physics

QUARTZ CLOCKS FAVORED IN RURAL AREAS

AsiaInfo Services 03-19-1998 Quartz Clocks Favored in Rural Areas CHINA, March 19, AsiaInfo Services, Inc -- Quartz clocks begin to recover the market after a period of recession. Investigation shows that consumption of quartz clocks can be mainly divided into three levels: group consumption, city

Publication: AsiaInfo Services

Billet handlebar clamp with built-in quartz clock.(Brief Article)

With a billet handlebar clamp with built-in quartz clock from Cycle Craft Engineering, you'll always know when it's time to hit the road, and you'll look good doing it, too. The clamp is GNC-machined from a solid block of 6061-T6 aluminum and features a hand-polished surface. The built-in quartz

Publication: Rider

Clock oscillation circuits: quartz crystals are 100% lead-free.(SPECIAL SECTION: INSTRUMENTS & CONTROLS)

Quartz crystals are suited for use as real-time clocks and timers or as a clock source for microcomputers. They can also be incorporated into cellular phones, PDAs, radio communication equipment, and other portable equipment applications. The 100% lead-free crystals have excellent shock and heat

Publication: New Equipment Digest

LETTERS: Quartz would help old clocks save face

From Mr David J. Boullin Sir: Gideon Berman (letter, 4 January) is correct in stating that the original mechanisms of many public clocks have been dumped or sold for scrap. While some mechanisms have been replaced by electric motors, many have been neglected. However, all is by no means lost. These

Publication: The Independent - London

Wake up to a colourful double-bell alarm clock or a stylish square- faced quartz clock; EVENING TELEGRAPH READER OFFERS.(Competitions/Offers)

CHOOSE from this colourful choice of four double-bell alarm clocks to make sure that everyone is up on time each morning! These clocks bring a bright blend of past and present to any room with the traditional loud double bell alarm ring and wind-up mechanism brought together with up-to-date colours

Publication: Coventry Evening Telegraph (England)

Step by step: the key to applying stepmotors is to understand that they move in discrete incremental steps--like a quartz clock, only better.

Getting a stepmotor to work takes a lot of finesse, but the extra effort is usually worth it. Unlike most motors, a stepmotor (also referred to as a stepping motor or a stepper motor) will not produce continuous motion from a continuous input voltage. It will stay at a particular position as long

Publication: Motion System Design