LONDON – Mobile phone and tablet computers are now so densely packed with chips that they can interfere with each other, in particular with touch-screen sensing ICs giving rise to false moves and taps, according to analog and mixed-signal chip and foundry vendor MagnaChip Semiconductor Corp. (Seoul, South Korea). The company has responded to the problem by offering a high-voltage option for its 0.18-micron embedded EEPROM technology.
The process module has been developed to work at 20-volts with high-voltage capacitors and 20-V transistors to improve the signal-to-noise ration and noise immunity.
In particular the trend in smartphones, tablet computers towards thinner designs has resulted in a closer proximity of components and power management circuits and this has caused an increased susceptibility to both internal and external electronic noise, MagnaChip said.
The use of 20-V transistors and capacitors has been introduced without compromising memory and logic performance characteristics, MagnaChip added. MagnaChip said it is also preparing a 30-V EEPROM process suitable for mobile applications with larger screens. The 30-V EEPROM is due to be available in 2013.
Fortunately for circuit designers, a new tool is available that can simplify the process of identifying the ESD suppression device best suited to an application, which makes it far easier to incorporate circuit protection earlier in the board planning process. The Littelfuse iDesign™ Online Simulation and Product Selection Tool
. I received a very good reader question from my last blog post regarding the various parameters that are reported by the tool. Let’s take a look at an example and explore the parameters that are returned. In this example we will look at the AD9643-250.
Managing system thermal performance is critical in today’s electronic systems if you are to maximize performance and the user experience. As systems grow more powerful, and in many cases smaller in size, managing the thermal profile has become an ever-increasing challenge. Monitoring the current provides a leading indicator to potential thermal issues.
In blog number 3, we are going to divert a little from our normal trend of evaluating power supply design and simulation tools. Instead, we are going to look into power management tools that are online.