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‘Cellphones’

An Electronicstalk guide

Start with the news release Power MOSFETs offer lower on-resistance from Vishay Siliconix, which we summarised at the time by saying "P-channel power MOSFET family in PowerPAK SC-75 packages includes several devices rated from 8 to 30V that are industry firsts for their voltage ratings in this package type.". Several months prior to that, we featured the news release Graphics core provides depth of texture from Vivante Corporation: "The Depth Texture extension to the OpenGL ES 2.0 application programming interface enables dynamic shadow rendering.".
 
In August 2008, we covered the news from Fairchild Semiconductor - take a look at Voltage translator covers a wide range which says: "I2C interface and open drain output offers designers a simple way to interface with Bluetooth and display screens in cellphones, notebooks and other applications.".
 
Take a look also at the news release from Green Hills Software, Software secures devices in the field, as well as Upgrade for GPS tuner core IP from MIPS Technologies, and Voice processor clears up Korean calls from Audience.
 

Latest stories...
Smaller MOSFET cuts on-resistance at low voltage (June 2008)

With an ultracompact 1.2 x 1.0mm footprint, the Si8445DB is 20% smaller than the industry's next-smallest device, while offering the same slim 0.59mm profile.

International centre focuses on analogue design (June 2008)

Marvell reckons that Pavia in Italy is one of the world's leading centres for analogue semiconductor design.

Charger chip provides superior protection (June 2008)

High-input-voltage battery-charger IC can safely handle input voltages up to 28V.

GPIO expander slashes standby drain (June 2008)

Device provides simple, cost-effective low-power option for adding I/Os for functions such as LED indicators, control buttons, fans and sensors.

Miniature MOSFETs maintain lower on-resistance (May 2008)

The PowerPAK SC-70 combines the tiny footprint of the SC-70 package with on-resistance comparable to the larger TSOP-6.

Regulators save portable power and space (May 2008)

Buck regulators smoothly transition into pulse skipping mode under light loads, reducing the switching frequency to improve power efficiency and provide long battery life.

Controllers boost current and voltage accuracy (May 2008)

Next-generation highly integrated AC/DC switched-mode power conversion ICs significantly reduce component count, space and system cost while increasing reliability.

Study profiles handset and component markets (May 2008)

The latest study of the worldwide cellphone market concludes that global growth is finally beginning to slow to 10% in 2008.

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Further reading
  • GPS receiver chip is optimised for cellphones

    SiGe Semiconductor reckons it has produced the industry's most cost-effective GPS solution to address the performance, size and battery life requirements of cellular phones.
  • LED drivers for cellphones, smart phones

    National Semiconductor's family of LED integrated circuit drivers are specifically designed for sharper colours and superior brightness in lighting systems for portable handheld devices.
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