Mother Board

IBM LENOVO X200s CELERON M 723 (1.2GHz) MOTHERBOARD SYSTEMBOARD 63Y1438 63Y5689

$228.00

HP M2000 394252-001 MOTHERBOARD FOR PARTS OR REPAIR

$16.99

HP MOTHERBOARD P/N 49Q01 – FOR PARTS

$21.24

HP Omnibook 500 MOTHERBOARD 31JT1MB00D7

$18.70

HP OMNIBOOK 500 MOTHERBOARD 31JT1MB0021 TESTED

$22.09

Toshiba Satellite P200 P205 X200 X205 Motherboard ISRAA L15 LA-3441P K000053610

$105.00

IBM THINKPAD 93P3586 LAPTOP/NOTEBOOK R40 MOTHERBOARD

$32.26

IBM LENOVO R50 MOTHERBOARD 93P4226 +CASING & SPEAKERS

$58.65

IBM R40 MOTHERBOARD 27R2087 TESTED HAS BIOS PASSWORD

$22.95

IBM T30 MotherBoard 91P7689 Assembly BROKEN FOR PARTS

$13.60

IBM Thinkpad Motherboard T42 T41 T40 27K9980 FOR PARTS

$19.54

IBM A21M BOTTOM CASIN G FOR MOTHERBOARD 4 14″ LCD

$8.49

IBM X40 Motherboard 1.4GHz CPU FRU: 27R1933 TESTED

$25.46

IBM Thinkpad T40 Motherboard 93P4156 P13R2684 FOR PARTS

$16.99

IBM THINKPAD X21 MOTHERBOARD FRU P/N: 12P3468 – TESTED

$24.65

GATEWAY INTEL MOTHERBOARD/CPU COMBO E139761 4000444 W/333MHZ P2

$19.99

HP Motherboard CPU Chipset Fans/Heatsink/Liquid Cooler

$33.88

AMD 965 QUAD CORE CPU+2GB DDR3 RAM+BIOSTAR TA870U3+ CFX SATA6 USB3 Motherboard

$249.95

AMD 965 QUAD CORE CPU+4GB DDR3 RAM+BIOSTAR TA870U3+ CFX SATA6 USB3 Motherboard

$255.00

AMD 965 QUAD CORE CPU+8GB DDR3 RAM+BIOSTAR TA870U3+ CFX SATA6 USB3 Motherboard

$269.95

Timing Components of Mother Board

Today’s market world is dominated by electronic gadgets. But what makes these gadgets tick accurately is the timing components. The three major timing components are resonators, oscillators and clock generators. The mother board is the primary circuit board that houses these components. So, for the mother board circuits to work in tandem, timing components must work in unison.

According to Wikipedia,

“A clock generator is a circuit that produces a timing signal for use in synchronizing a circuit’s operation.”

”A resonator is a device or system that exhibits resonance or resonant behaviour, that is, it naturally oscillates at some frequencies, called its resonant frequencies, with greater amplitude than at others.”

“An electronic oscillator is an electronic circuit that produces a repetitive electronic signal, often a sine wave or a square wave. They are widely used in innumerable electronic devices.”

The main purpose of crystal oscillator and resonator in an electronic system is to generate a timing signal that is used by other electronic devices. An oscillation with a certain frequency is generated when the resonator is excited. The oscillator is usually made of natural crystal and vibrates at a certain frequency, although recently, newer, silicon MEMS based devices are getting traction in the marketplace. The oscillator also contains an amplifier circuit that is used to excite the resonator and generate a clock signal.

A crystal resonator (also known as a “crystal”) is made of single-crystal quartz and has natural piezoelectric properties. Depending on how it is cut, the resonator exhibits different frequencies and characteristics.

Clock generators are all silicon circuits that usually require a reference clock that can come from a crystal, an oscillator or a MEMS resonator. They are offered in differential, LVCMOS, and mixed outputs. They may be provided with independent operating voltages for each of the PLLs and its associated outputs, thereby eliminating external level translators and reducing overall system cost. Some of them support frequencies of up to 800 MHz with stability as good as ± 10 PPM and accuracy up to 5 decimal places.

Traditionally, semiconductor companies manufacture clock generators, while the crystal companies manufacture oscillators and resonators. Vertically integrated companies that manufacture all three kinds of timing components allow their customers to consolidate their supply-chain, reducing cost of ownership and time to market.

Top semiconductor companies offer great service value for buyers by providing the following benefits.

* Shortest lead time delivery (3-5 weeks for volumes)

* Able to meet demand upsides

* Able to reduce cost of ownership

* Provision to buy smaller packages

* Provides no costly or time-consuming design changes that need further support

By choosing the right semiconductor vendor to purchase these timing components, companies can expect to create quality mother boards, and eventually aim at producing quality electronic gadgets.

About the Author

Learn more about :- Differential Oscillator , MEMS Oscillator & Voltage Controlled Oscillators

A+ 2009 Training Video – Installing the Motherboard – K Alliance