Low glitch, 16-bit DAC dissipates 1.5 mW at 2.7 V Product News 3/30/2007 Post a comment Texas Instruments introduced a series of digital-to-analog converters (DACs) with an integrated precision reference. The DAC8560 is a 16-bit, single-channel DAC featuring low glitch (0.15 nV-s), low-power (1.5 mW at 2.7 V), an internal reference with 2 ppm/°C temperature drift and ±0.004 percent initial accuracy.
PMC-Sierra shuts R&D sites News & Analysis 3/30/2007 Post a comment Comms-chip supplier PMC-Sierra Inc. is cutting 175 jobs -- or 15 percent of its total work force -- and is closing two design centers amid a slowdown in its business.
REVIEW: 300-mV input-voltage boost converter throttles micro-fuel cells Product News 3/29/2007 Post a comment Chip maker Texas Instruments is debuting an ultra-low-input DC-to-DC boost converter IC that promises to let portables operate from new energy sources such as micro-fuel cells. TI's power circuit can let you build converters that operate with input voltages lower than 300-mV. eeProductCenter Senior Technical Editor Alex Mendelsohn reports.
Solar Power Conference call for presenters News & Analysis 3/28/2007 Post a comment The Solar Power Conference and Expo is the big event for those interested in solar for domestic and worldwide markets. Find out what sessions are looking for presenters but hurry because the deadline for submissions is April 6.
QMLV-qualified dual amplifier eliminates 1/F noise in satellite apps Product News 3/27/2007 Post a comment National's first dual amplifier in its new family of precision operational amplifiers QMLV-qualified for space-level applications uses patented techniques to measure and continually correct the input offset error voltage, while eliminating the unwanted 1/f voltage and current noise present in traditional amplifiers.
3.125-Gbits/s LVDS buffers reduce jitter Product News 3/26/2007 Post a comment National added three signal-conditioning buffers to its LVDS product portfolio that offer transmit pre-emphasis and receive equalization for jitter performance up to 3.125-Gbits/s, while using less power than previous-generation devices.
Clock multiplier provides any-rate frequency synthesis Product News 3/26/2007 Post a comment Check out Silicon Laboratories' jitter-attenuating clock multiplier IC line that's capable of generating any output frequency from 2 kHz to 945 MHz and selecting frequencies to 1.4 GHz from any input frequency between 2 kHz and 710 MHz. The devices' ultra-low jitter generation rivals traditional analog PLLs built discretely using expensive voltage-controlled crystal oscillators (VCXOs) or voltage-controlled SAW oscillators (VCSOs).
Under the Hood: Handset adds twists for TV viewing Teardown 3/26/2007 Post a comment
As the sinkhole for ever-expanding feature sets, the cell phone never sleeps. Having moved well beyond voice to high-speed data, e-mail, cameras, music players and the like, the mobile just keeps on packing it in. The Samsung SGH-P920, for example, adds to an already impressive feature set the ability to receive Digital Video Broadcasting-Handheld television programming.
Designs that improve performance per watt Design How-To 3/26/2007 Post a comment We've come to expect faster, cheaper and more functionality from our computing devices but cost of computing has made both large and small users pay attention to what's inside. Here's how to design with a more holistic energy approach for processors, drives, power supplies, and displays.
Power-management ICs integrate charger Product News 3/26/2007 Post a comment Maxim Integrated Products' latest power-management ICs integrate a USB/AC-adapter linear charger and Smart Power Selector for portable devices powered by rechargeable single-cell Li+ batteries.
Pre-standard PoE chips let switches drive 36-watts Product News 3/23/2007 Post a comment Microsemi has developed what it claims is the industry's first pre-standard IEEE802.3at Power over Ethernet (PoE) integrated product family, delivering 36 watts of power for devices ranging from video screen phones and WiMAX transmitters to pan-tilt-zoom cameras, thin-clients and laptop computers.
Video switch matrix reduces board space Product News 3/23/2007 Post a comment Fairchild's FMS6502 is an 8-input, 6-output video switch matrix tailored for consumer and industrial video applications such as automotive in-cabin entertainment systems, HDTVs, flat panel displays and A/V receivers.
For low-power design, speak two languages News & Analysis 3/22/2007 Post a comment It's looking like the impasse between camps supporting Common Power Format and Unified Power Format means that chip designers will need to familiarize themselves with both or hope that translators can make the task easier.
Voltage-to-current converter delivers up to 36 mA Product News 3/21/2007 Post a comment Texas Instruments released a voltage-to-current converter/transmitter designed for standard 0-20 mA and 4-20 mA analog signals, as well as 5-25 mA signals and voltage outputs. The XTR111 can deliver current up to 36 mA and includes output error detection and output disable.
Single-ended design with Digital Amplifiers Design How-To 3/21/2007 Post a comment In practice, single-ended amplifier audio performance data, including power-on pops, signal-to-noise ratio (SNR), PSRR, and THD+N, are quite good with only a small degradation in audio performance from that of BTL.
Fundamentals of power system ORing Design How-To 3/21/2007 Post a comment Many portable devices, blade servers and telecom switches require power architectures with redundancy, summation of power for capacity, or a capability to select multiple sources. Today ORing is often implemented with MOSFETs and IC-based control. Find out what ORing functions are required and what prevalent techniques are used.
Keynoters sketch out future of handsets News & Analysis 3/20/2007 Post a comment Cellphones will become broadband devices with built-in TV projectors while Wi-Fi handsets could someday become an alternative for cellular, according to investor Vinod Khosla and Skype CEO Niklas Zennstrom who gave back-to-back talks at the VON conference.
Blog Doing Math in FPGAs Tom Burke 24 comments For a recent project, I explored doing "real" (that is, non-integer) math on a Spartan 3 FPGA. FPGAs, by their nature, do integer math. That is, there's no floating-point ...