Montevina: The NExT Centrino to be launched by Intel

Intel had been waiting for the right time to unravel it’s brand new mobile platform. Intel calls it the Montevina platform. Montevina is the fifth generation Centrino platform, on which you not only get integrated WiMAX capabilities, but also benefit from chip-level support for both the upcoming laser-disc technologies, Blu-Ray and HD DVD. This almost aggregates the ongoing “format war”, since dual support for the formats is being preferred by an increasing number of manufacturers. It is good for the consumers, but Sony will be disappointed as this is going to nullify their efforts to make Blu-Ray the monarch.

Displayed at the Intel Developer Forum for the first time, the Montevina mobile computing platform has been specially designed to take over the company’s highly successful Santa Rosa notebook architecture. Montevina will host the new 45nm Penryn processor architecture, which means integrated WiMAX capabilities but could not opt for one choice in the ongoing high definition format war. Consumers will win in the end with this approach, as they will be able to watch movies that are exclusive to either format, while Toshiba and Sony sit down, bubbling in a corner.

This is a very appreciable effort from the Intel factories, since it is a chip manufacturer and to offer such support for both disc formats is simply a burden as the two formats commonly share the same codecs: H.264, VC9, and MPEG-2. It is this onboard support for either of the two platform that makes system makers choose either HD DVD or Blu-ray capability, or even both.

Seen overall, this HD format hype shall be easily overtaken by the on-board WiMax support that Montevina caters to.

by Mitesh Ashar

Original Post

EE

My dear friends this is my first article,in this i gave you some information about the fieid of electricals and electronics.
The Field
Electrical and electronics engineers conduct research, and
design, develop, test, and oversee the development of
electronic systems and the manufacture of electrical and
electronic equipment and devices.
From the global positioning system that can continuously
provide the location of a vehicle to giant electric power
generators, electrical and electronics engineers are
responsible for a wide range of technologies. Electrical and
electronics engineers design, develop, test, and supervise
the manufacture of electrical and electronic equipment.
Some of this equipment includes broadcast and communications systems; electric motors,
machinery controls, lighting, and wiring in buildings, automobiles, aircraft, and radar and
navigation systems; and power generating, controlling, and transmission devices used by
electric utilities. Many electrical and electronics engineers also work in areas closely related to
computers.
Many authorities believe that the two fields of "electrical
and electronics engineering" and "computer science and
engineering" have now established separate identities,
although they still have much in common. Because of the
breadth of the field, however, general statements about
"electrical engineering" include electrical, electronics,
computer engineering, computer science, and related
areas of arts and sciences in the broadest context and
application.

Voltage Controlled Oscillators

What are voltage controlled oscillators?
The voltage controlled oscillator which is more commonly known, a vco, is an oscillator which works on the principal of variable capacitance or tuning with a varactor diode. The voltage controlled oscillator is tuned across its band by a "clean" dc voltage applied to the varactor diode to vary the net capacitance applied to the tuned circuit.

What are Varactor or Tuning Diodes
These types of diodes work on the principle that all diodes exhibit some capacitance. When the voltage applied across the diodes changes the capacitance developed across it also changes.

Temperature compensated voltage controlled oscillator
A VCO with temperature compensation is achieved using reverse biased diodes. The VCO includes an amplifier that provides the required signal gain, a resonator tank circuit that provides the required phase shift, and at least one frequency tuning circuit for tuning the frequency of the oscillator signal. Each frequency tuning circuit includes at least one tuning capacitor and at least one MOS pass transistor that connects or disconnects the tuning capacitor(s) to/from the resonator tank circuit. Each reverse biased diode may be a parasitic diode that is formed at a drain or source junction of a MOS transistor. The reverse biased diodes have capacitance that can be controlled by a reverse bias voltage to compensate for drift in the VCO oscillation frequency over temperature.