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Content posted in July 2005
500mA VLDO grants fixed voltages
Articles  
7/29/2005   Post a comment
Linear Technology Corp. is trumpeting what it claims is the first 500 mA very low dropout regulator (VLDO) with fixed low-output voltage options.
Decoder turns cellphones into media players
Articles  
7/28/2005   Post a comment
Atmel Corp.'s single-chip MP3 decoder allows mobile phones to play MP3 music and ring tones and to convert it into a pen drive.
Microcontrollers target automotive passive-keyless-entry
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7/27/2005   Post a comment
Microchip Technology's latest PICs combine data transmission security with power management.
Fast parametric measurement-unit chips have small footprints
Articles  
7/27/2005   Post a comment
Expanding an existing line of standards-based per-pin parametric measurement unit ICs, chip maker Semtech is dishing up a family of three PPMU devices. They're claimed to have extremely fast settling times and the smallest form-factors for 40-mA devices. The use of BiCMOS also permits them to accommodate a 16.25-V range.
RTC trait minimizes battery drain
Articles  
7/27/2005   Post a comment
Intersil Corp.'s real time clock (RTC) combines high-precision and low-power for a variety of applications that require accuracy and calendar functions.
Tiny board puts accurate speech recognition into consumer designs
Articles  
7/26/2005   Post a comment
Here's news of a DIP-pluggable postage stamp-sized power-managed speech recognition module that's just the ticket for low power nomadic consumer products. At the heart of the module is a dedicated processor that handles both speaker-dependent and speaker-independent voice recognition.
What happens when you push thermal gradients?
Articles  
7/25/2005   Post a comment
Op amp circuit troubleshooter Bill Klein was asked to solve an oscillation problem. He instinctively wondered about power supply coupling, until his caller said the blip was 2 seconds on, 2 seconds off, and he could smell something burning. Read about "A Call I took Last Week."
D/A converter cuts power by 70 percent
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7/25/2005   Post a comment
Analog Devices, Inc. has developed a lower-power version of its TxDAC transmit digital-to-analog converters (D/A converters) that is said to reduce power dissipation by up to 70 percent over the previous generation.
Audio A/D converter touts eight-channels
Articles  
7/25/2005   Post a comment
Cirrus Logic Inc. rolled out an audio analog-to-digital converter (A/D converter) IC that is said to eliminate the need for multiple stereo A/D converters for surround-sound or multichannel applications.
Clocking requirements spur buffer demand
Articles  
7/22/2005   Post a comment
Alliance Semiconductor Corp. expanded its product offering with a new family of high-performance zero delay buffers (ZDB's) and non-zero delay buffers (NZDB's) in response to precise, high-performance clocking requirements.
13-bit A/D converter boosts receiver performance
Articles  
7/21/2005   Post a comment
Texas Instruments Inc.'s 13-bit analog-to-digital converter (A/D converter) features 68 dB signal-to-noise ratio (SNR) and 79 dB spurious-free dynamic range (SFDR), at the maximum sample rate of 210 megasamples/second and an input frequency of 230 MHz.
Measurement System for the Characterization of Hi-Fi Audio Cables
Articles  
7/21/2005   Post a comment
The authors of this article aimed to develop a measurement procedure for the performance evaluation of high quality cables adopted for professional audio applications. In the paper, authors Giovanni Bucci, Fabio Di Nicola, and Edoardo Fiorucci of Universit di L'Aquila will report and discuss the experimental results related to the characterization of a set of Proel Die-hard professional cables.
Reference design for Bluetooth stereo headsets reduces costs by more than 20%
Articles  
7/21/2005   Post a comment
Breaking a barrier for market uptake of wireless stereo headphones, the new reference design includes CSR's BlueCore3-Multimedia chip.
Audio converter boasts wide sampling rate
Articles  
7/20/2005   Post a comment
AKM Semiconductor's low-cost, audio analog-to-digital (A/D converter) for audio applications touts a dynamic range of 102 dB signal-to-noise ratio (SNR) and -96 dB total harmonic distortion plus noise (THD+N).
Stereo codec targets portable apps
Articles  
7/19/2005   Post a comment
This low-power stereo codec from Cirrus Logic Inc. operates from a single 1.8-V power supply while delivering 46 mW into stereo 16Ω headphones.
Temperature sensors target higher accuracy
Articles  
7/19/2005   Post a comment
As microprocessors move from 90 nanometers to 65 nm, temperature sensor suppliers like Analog Devices, Andigilog, Maxim Integrated Products, Microchip Technology, National Semiconductor and Texas Instruments are developing more accurate devices.
Converter driver guarantees operation down to 2.375 V
Articles  
7/18/2005   Post a comment
With guaranteed operation down to 2.375 V and rail-to-rail outputs, Linear Technology Corp. claims this is the only differential amplifier that can directly drive 2.5-V and 3-V SAR A/D converters without a negative supply.
CMOS IC acts as analog front end
Articles  
7/15/2005   Post a comment
ProTek Analog released a mixed-signal CMOS monolithic device that integrates analog-to-digital converter conversion operations on a single chip.
Allegro offers power-management ICs for low-power SMPS applications
Articles  
7/15/2005   Post a comment
The STR-A61xx Series of power-management ICs from Allegro MicroSystems are PRC (pulse ratio control) topology devices designed for use in relatively low output power switch-mode power-supply designs with output power up to 20 W at universal input or 24 W at 230 V AC input.
D/A converter integrates 3D audio enhancement
Articles  
7/13/2005   Post a comment
AKM Semiconductor's low-power, stereo digital-to-analog converter (D/A converter) with an integrated 3D-audio enhancement circuit was made for ultra-compact mobile phones, smart phones and portable media players (PMPs).
Voltage references flaunt Kelvin sensing
Articles  
7/13/2005   Post a comment
Capable of both sourcing and sinking current, Texas Instruments Inc.'s 4 ppm/°C temperature drift voltage reference family from the company's Burr-Brown product line boasts high accuracy.
D/A converters tout low power
Articles  
7/11/2005   Post a comment
National Semiconductor Corp. today expanded its data conversion offering with three low-power, pin- and function-compatible 8-, 10- and 12-bit digital-to-analog converters.
24-pin QFN package makes single-channel UART industry's smallest
Articles  
7/8/2005   Post a comment
The XR16L580 single-channel UART is now being offered in a 24-pin QFN—the industry's smallest form factor, according to Exar. It has a footprint of only 4-mm X 4-mm and a height of 0.9-mm compared with 5-mm X 5-mm X 0.9-mm of the 28-pin and 32-pin QFN devices.
PLL clock lowers EMI
Articles  
7/8/2005   Post a comment
Alliance Semiconductor Corp. has announced a dual phase-locked loop clock synthesizer for PC peripheral devices, consumer electronics, and embedded controller systems that is said to lower electromagnetic interference.
Sync separator adapts to standards
Articles  
7/6/2005   Post a comment
Intersil Corp. released a sync separator that extracts sync timing information from both standard and non-standard video inputs.
DVD recorder chip offers simultaneous recording of two TV shows
Articles  
7/6/2005   Post a comment
LSI Logic Corp. has rolled out a single-chip media processor featuring dual-stream encoding capabilities for next-generation DVD recorders equipped with hard disk drives.
Clock synthesizer maximizes design flexibility
Articles  
7/5/2005   Post a comment
Texas Instruments Inc. introduced a clock synthesizer and jitter cleaner that is said to offer the lowest phase noise and jitter in its class.
16-bit converter fits in SSOP-16
Articles  
7/5/2005   Post a comment
Linear Technology Corp.'s octal 16-bit voltage output digital-to-analog converter (D/A converter) with an I²C serial interface in a 16-pin SSOP package consumes the same board area as an SO-8.
Single-supply video driver eliminates external caps
Articles  
7/1/2005   Post a comment
A triple video driver from Intersil Corp. is said to run off a single 3.3-V supply, and it generates a negative voltage internally, removing the need for external coupling capacitors.
Dual LDO shrinks 30 percent for portable apps
Articles  
7/1/2005   Post a comment
Micrel Inc. is offering a dual low dropout regulator in a miniature 2.5mm x 2.5mm MLFTM package.




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