Dual current sense amplifiers deliver fast response, precision Product News 1/31/2007 Post a comment Linear's LTC6103 contains two independent, high side current sense amplifiers that feature input bias current of 170-nA max and maximum input offset voltage of 450-µV. This precision performance allows the part to resolve very small currents and still operate over a large dynamic range.
GloNav taps Jazz to produce low-power GPS RFIC Product News 1/31/2007 Post a comment Using Jazz's 0.18-micron SiGe BiCMOS process, GloNav has developed a low-power L1 GPS RFIC that operates from a single 1.8-V supply to consume just 15-mW of power, a key requirement for today's cellular handsets, portable consumer devices and battery-operated GPS devices.
Save power and real estate with a programmable reset controller with debounced input Design How-To 1/31/2007 Post a comment The long time delay of the Hard Reset poses a design problem because delays into the tens of seconds call for very large value resistors and capacitors. The analog solution is both simple and low cost but it lacks flexibility and accuracy. A programmable reset timer becomes the obvious solution when considering long delay times or multiple timers. Here's an article that tells you the specifics about how to create this design.
Actel expands channel in China News & Analysis 1/30/2007 Post a comment To promote wider use of its field-programmable gate array devices by Chinese designers, Actel Corp. announced a significant expansion of its sales channel in Greater China.
Get control of buck regulator high step-down ratios Design How-To 1/30/2007 Post a comment Feedback loops for buck type switching regulators are usually hard to compensate and typically require current mode control. Unfortunately, noise sensitivity is a problem. A recent development called Emulated Current Mode Control can improve the ability to operate with very high step down ratios while maintaining good noise immunity. Here's what you need to know.
Auto-focus zoom camera block design uses wide range image sensor for surveillance Design How-To 1/26/2007 Post a comment Dallmeier Components' new Integrated Optics Package for use in pan-tilt-zoom surveillance video cameras incorporates Pixim's Orca Chipset for ultra wide dynamic range imaging (102dB typical). The image sensor converts light to a digital signal directly at the point of capture, enabling each pixel to have independent, optimized exposure. Here's the inside story of how it works and how it was designed.
TI bests Q4 expectations, plans layoff News & Analysis 1/22/2007 Post a comment Surprising Wall Street analysts who were expecting a weaker quarter, Texas Instruments reported a net income of $668 million on sales of $3.46 billion for the fourth quarter of 2006. But the company issued a first quarter revenue outlook that fell below analyst expectations and announced plans to eliminate about 500 jobs.
Get the most (charging) out of your USB port Design How-To 1/21/2007 Post a comment One of the features of the USB is its advanced power management capability. Find out what the power characteristics of USB ports are, what the challenges are, and how applications can benefit from available USB power.
Lower-skew fanout buffers keep system clocks right on time Product News 1/18/2007 Post a comment ON Semiconductor's NB3N551, NB3L553, and NB3N2304NZ 1:4 fanout buffers, high-performance additions to the company's clock management portfolio for telecom, networking, and automated test equipment, have an output skew of as little as 160 ps across its outputs, versus 250 ps for typical devices.
Dual 2-amp LDO features ramp control and tracking/sequencing Product News 1/17/2007 Post a comment Micrel's MIC68220 dual 2-amp LDO regulator, for powering FPGA and microcontroller applications in broadband modems, routers, set-top boxes, home entertainment systems, storage networks, wireless base stations, and car infotainment systems, touts unique functionality that includes ramp control and tracking and sequencing capability in the smallest possible footprint.
World's smallest digital TV demodulator? Product News 1/16/2007 Post a comment Here's news of a very small ATSC-A/53-compliant demodulator that meets the imminent FCC tuner mandate for the US. It will be able to demodulate standard and high-def TV meeting ATSC-A/53 specs for North American broadcast standards, and QAM 64/256 as specified by the ITU.
Blog Make a Frequency Plan Tom Burke 17 comments When designing a printed circuit board, you should develop a frequency plan, something that can be easily overlooked. A frequency plan should be one of your first steps ...