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Content tagged with Analog ICs
posted in September 2004
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LVPECL Translator Clock IC's Help Solve Jitter Issues
Product News  
9/30/2004   Post a comment
These translator clock ICs from Pericom Semiconductor were designed to meet translation requirements, as well as to eliminate jitter concerns in networking/telecommunications, storage, and industrial system applications.
Supervisor IC has the right watchdog for automotives
Product News  
9/30/2004   Post a comment
EM Microelectronic says its 615x/625x family of microprocessor supervisory ICs is especially suited to automotive applications. It features programmable voltage reset monitoring, special watchdog timer with programmable time window, system enable output, optional low-dropout (LDO) +5-volt regulator and a power saving function compatible with the CANbus sleep mode that, together, eliminate the need for redundant microprocessors to supervise each other. The family includes the V6150 and V6155 wind
Dual SPDT Analog Switch - ideal for portable applications
Product News  
9/29/2004   Post a comment
Texas Instruments announced the TS5A23157 low-power dual single pole double throw (SPDT) analog switch. Designed for operation between 1.65V to 5.5V Vcc, the device provides low power consumption and high-speed, while maintaining excellent signal integrity, making it ideal for applications such as analog signal routing, signal gating, and digital signal multiplexing/demultiplexing.
Input Video Switch - with 75 ohms driver
Product News  
9/29/2004   Post a comment
The UTC M3366 offered by Willi Bacher is a three input integrated video switch to select one video or audio signal from three input signals.
Fuel gauge fields more I/O, all battery types
Product News  
9/29/2004   Post a comment
Microchip Technology's PS501, an addition to the company's product line for battery management, expands on the company's earlier PS401, PS402, and PS700 versions with more functional I/O and the capability to work with all popular battery types. This battery manager/fuel gauge is accurate to 1 percent for two-, three- and four-cell lithium-ion/polymer sources, or six- to 12-cell nickel-metal-hydride and nickel-cadmium sources.
Mindspeed cuts guidance on lower China demand
News & Analysis  
9/28/2004   Post a comment
Mindspeed Technologies Inc. (Newport Beach, Calif.) announced Tuesday (Sept. 28) it anticipates fourth fiscal 2004 quarter revenues of $26 million to $27 million, down 25 percent from fiscal third-quarter revenue of $35.4 million and compared to previous guidance of flat to 10 percent higher sequential revenue.
Supervisory Circuits Eliminate External Components
Product News  
9/28/2004   Post a comment
austriamicrosystems AG launched the AS1904/5/6 family of ultra low power supervisory circuits.
Big Pay-off for Small Trade-Off
Product News  
9/28/2004   Post a comment
A new family of high-speed analog-to-digital converters (A/D converters) from Linear Technology combines strong AC performance with low power, making them suited for a range of wireless and cable communications systems.
Specifically Generic Analog Functions for FPAAs
Product News  
9/28/2004   Post a comment
Anadigm Expands Drag-and-Drop Programmable Analog Building Block Options with New Configurable Analog Modules
Supervisor ICs link up to 30 POLs
Product News  
9/28/2004   Post a comment
Summit Microelectronics' SMM766 and SMM764 supervisor ICs, using single-pin control, can link up to 30 POL (point-of-load) DC/DC converters. The SMM766, a six-channel device, and the SMM764, a four-channel device, include sequencing, margining, and true differential tracking capability.
Analogix appoints Eichen president
News & Analysis  
9/27/2004   Post a comment
Mixed signal semiconductor startup Analogix Semiconductors Inc. has appointed industry veteran Bill Eichen as its president and chief operating officer.
Siemens Automotive awards supply contract to Freescale
News & Analysis  
9/27/2004   Post a comment
Siemens VDO Automotive (Auburn Hills, Mich.) has awarded Freescale Semiconductor (Austin) a $245 million contract to supply electronics components including ASICs, microcontrollers, analog and sensor components, for its automotive electrical and electronic systems.
Digital-Analog Integration
News & Analysis  
9/27/2004   Post a comment
Digital-Analog Integration
Getting inside the SiP
News & Analysis  
9/27/2004   Post a comment
Many design teams are taking a harder look at the system-in-package (SiP) alternative to conventional system-on-chip (SoC) design as the advantages of combining multiple dice into one package have been well-documented. The approach exploits the low cost and rigorous testing of commodity ICs like DRAMs. It also allows specialized circuitry to reside on its own dice, can integrate high-quality passive components into the package and can reduce design risk and shorten time to volume production comp
A/D conversion gets a digital assist
News & Analysis  
9/27/2004   Post a comment
In the shift to digital processing of information, the performance of many electronic systems has become limited by the interfaces between physical analog signals and their digital representation. Aside from restrictions due to limited throughput, the growing trend toward portable and wearable devices has made the power efficiency of analog-to-digital converters one of the main factors that can limit overall system performance.
Analog design tuned to consumer
News & Analysis  
9/27/2004   Post a comment
In the drive for lower cost, smaller size and reduced power consumption, the consumer electronics industry is at the forefront of deep-submicron CMOS process development. Increasing gate densities and higher clock speeds allow more signal processing to be done in the digital domain. But nearly all consumer product applications still require analog circuits to interface with the real world-for example, front-end A/Ds or back-end D/As.
On-chip VCOs can be digitally tuned
News & Analysis  
9/27/2004   Post a comment
Synchronous systems, whether analog or digital, all use a clock reference signal, typically generated using a high-frequency phase-locked loop (PLL), where power consumption, frequency range and accuracy, noise level and jitter are critical system-level parameters. In these PLLs, one of the most challenging blocks to design properly is the voltage-controlled oscillator (VCO).
Deep-submicron CMOS aids RF design
News & Analysis  
9/27/2004   Post a comment
While shrinking CMOS lithographies pose many difficult challenges for analog circuits, including shrinking supply voltages and increasing leakage currents, they also offer some fundamental advantages that analog and mixed-signal circuits can exploit with the right architecture and circuit approach. For example, deep-submicron CMOS transistors are achieving very high fTs that are being exploited in RF circuits, from cell phones to wireless LANs. With the RF circuitry realized in BiCMOS or CMOS, d
Digitally optimizing WLAN transceivers
News & Analysis  
9/27/2004   Post a comment
The 802.11a and 802.11g wireless-LAN standards use orthogonal frequency-division multiplexing modulation to provide high data-throughput rates. Unfortunately, OFDM modulation also provides a signal that has very large peak-to-average power fluctuations in time. For traditional architectures, this requires a lowering of power efficiency by backing off the power amplifiers to reduce distortion that results from amplifier compression. Even for high-efficiency linear amplification using nonlinear co
Test Instruments Coupled with EDA software maximize Doherty Amplifier Linearity and Efficiency
News & Analysis  
9/27/2004   Post a comment
Due to the increasing importance of spectral efficiency in mobile communications, linearity and efficiency of RF power amplifiers have become critical design issues for nonconstant-envelope digital modulation schemes. Although linearity can be improved with linearization techniques such as feed-forward linearization, the improvement comes at the expense of reduced efficiency. Baseband predistortion is a potentially more promising technique.
Digitally Controlled Analog Provides a New Methodology for Embedded Systems in Subwoofer Applications
News & Analysis  
9/27/2004   Post a comment
Motion picture surround sound, home theatre systems and automotive audio have created a new market for sophisticated, active subwoofers. The challenge for these systems is designing them to deliver sound that is appropriate for the space or spaces in which they will be used.
Digital circuits make analog array configurable
News & Analysis  
9/27/2004   Post a comment
Implementing configurable I/O blocks on a microcontroller IC is by now an established practice. These blocks in the past have been implemented either as register-configured fixed logic or as an array of programmable logic cells. In a recent chip design, our team undertook to create a flexible, user-configurable portfolio of moderate-performance analog and mixed-signal functions on an MCU die. These functions were to exist in addition to, and work in concert with, a set of user-configurable digit
The sound of change: from analog to digital audio amplifiers
News & Analysis  
9/27/2004   Post a comment
When the world's first commercially available audio product using a digital amplifier appeared in 1998, it created quite a stir with its performance and ease of use.
Under the Hood: LifeLong's FM Radio tunes in low-cost analog ASICs
Teardown  
9/26/2004   Post a comment
Everybody's tradeshow handout: A made-in-China FM radio unit uses a capacitive tuner chip and a bunch of discrete components. From the September Planet Analog magazine folio, Portelligent's David Carey has this teardown report.
TDR helps isolate electronic package faults (Part 3)
News & Analysis  
9/26/2004   Post a comment
Time Domain Reflectometry is increasing in importance as a non-destructive method for fault location in electronic packages. In this multipart series, TDA Systems' famous fault finder, Dima Smolyansky, shows some package faults like shorts and opens, and explains how they are likely to show up on TDR measurement screen. The first part offered a review of Time Domain Reflectometry basics. Part 2 began the process of assessing package faults such as shorts and opens. Part 3, concluding the series,
The Invisible Intruder
News & Analysis  
9/26/2004   Post a comment
My caller last week was in a bind and he could not see what was causing the problem. But then, nobody can see RF, writes Bill Klein in the latest installment of his popular op amp trouble-shooting column ("A call I took last week.") The reported symptom was a shift and instability in offset voltage for no apparent reason. After several experiments we determined RF from nearby cell phones caused the problem. But how could this be? See what he found out.
Supervisor ICs tout maximum flexibility
Product News  
9/25/2004   Post a comment
Providing all the basic supervisory functions for power systems on a single chip, Maxim Integrated Products' MAX6870 and MAX6871 are EEPROM-programmable, hex/quad power-supply supervisor ICs with an integrated 10-bit a/d converter (ADC). They combine voltage monitoring, margining control, and sequencing control. These devices are programmed through an I2C interface that selects monitored voltage thresholds, sequence and reset-timing specifications, and sets output configurations.
An analyst on Intersil: Very committed to the PC space
Blog  
9/24/2004   Post a comment
A number of observers have wondered whether Intersil was losing its edge in the power management device market. International Rectifier, for example, reported design wins on Pentium motherboards and server cards - places where Intersil maintained hegemony. American Technology Research's Doug Freedman went to an analyst meeting Thursday (September 23rd), and reported "they seemed very committed to the PC space."
Exar lowers guidance as communications slumps
News & Analysis  
9/24/2004   Post a comment
Exar Corp. said Friday (Sept. 24) it expects to see revenue of $14.0 million during its second fiscal 2005 quarter ending September 30, 2004, compared to about $16.3 million in the previous quarter.
Digitalizing analog circuits cuts chip area
News & Analysis  
9/23/2004   Post a comment
Since analog circuits refuse to obey Moore's Law, logic designers are taking matters into their own hands to take full advantage of CMOS process shrinks. By replacing analog functions with digital equivalents, you can achieve more predictable performance, simplify testing and reduce chip area — even when the digital equivalents use far more transistors than the analog versions.
SigmaTel touts first-to-market VFIR controller
Product News  
9/23/2004   Post a comment
SigmaTel, introduces the STIR4220 USB-to-infrared bridge controller with USB and very fast infrared for high-speed wireless transfer of data up to 16Mb/s.
Quad Analog Switch Combines Ultra Fast Switching and Low Power Consumption
Product News  
9/23/2004   Post a comment
Intersil's bi-directional, dual double-pole/double-throw analog switch offers precise switching capability from a single 1.65-V to 3.6-V supply. The company says it is suited for portable battery powered equipment due to its low operating supply voltage, low power consumption, low leakage currents, and packaging.
Cypress to expand design center in India
Product News  
9/23/2004   Post a comment
Cypress Semiconductor Corp. announced Thursday (Sept. 23) a $2 million plan to expand its year-old semiconductor design center in Hyderabad, India.
AC-DC Power Conversion IC - offers a modern switching solution
Product News  
9/23/2004   Post a comment
Power Integrations Inc introduced the LNK302, a new member of the company's LinkSwitch-TN family of AC-DC power conversion ICs. Designed as a cost-effective replacement for bulky, energy-wasting capacitive droppers and linear transformers, the LinkSwitch-TN family is ideal for use in home appliance and industrial control applications.
Quad Delta-Sigma Modulator - for industrial motor control
Product News  
9/23/2004   Post a comment
Extending its portfolio of high-performance motor control converters from the Burr-Brown product line, Texas Instruments announced the industry's first quad delta-sigma modulator, featuring 100dB dynamic range, 16-bit resolution and a single +5V supply. The four differential inputs enable direct connection to transducers or low-level signals for measuring and digitizing current in industrial environments, such as motor control and industrial process control.
Tiny gate drivers pack plenty of punch
Product News  
9/23/2004   Post a comment
National Semiconductor's LM5111 and LM5112, in some of the industry's smallest packages, deliver up to 5 to 7 amps of gate drive for the power MOSFET stages in AC/DC and DC/DC converters, motor drives and industrial control systems.
Embedded super I/O controllers designed to save board space
Product News  
9/21/2004   Post a comment
Pin compatible system controller hub chips enable system design engineers to standardize on a single part across a wide range of applications.
Dual A/D converter consumes little power at high speeds
Product News  
9/21/2004   Post a comment
National Semiconductor offers a dual high-performance CMOS analog-to-digital converter that the company says uses significantly less power than competitive products while providing the GHz speeds necessary for reliable measurements of high-frequency signals. Editor Bettyann Liotta takes you in for a closer look at this product and how it compares to other similar products in the industry.
Power Meter System-On-Chip - for industrial poly-phase meters
Product News  
9/21/2004   Post a comment
TDK Semiconductor unveiled the world's first true system-on-chip for industrial poly-phase power meters. The 71M6513H integrates a 21 bit delta-sigma-delta converter, 32-bit compute engine, MCU, RTC, LCD driver, and ultra-precision voltage reference and provides better than 0.1% accuracy with only a few low cost external components.
High-speed A/D converter family achieves impressive power consumption specs, maintains performance
Product News  
9/21/2004   Post a comment
A new family of high-speed A/D converters from Linear Technology combines outstanding AC performance with extremely low power, making them ideal for a range of wireless and cable communications systems. The LTC2220 family includes A/D converters ranging from 10 MS/sec up to 170 MS/sec at 12-bit and 10-bit resolution, as well as 14-bit converters up to 80 MS/sec.
1-GHz Voltage Feedback OpAmp - for high-performance systems
Product News  
9/21/2004   Post a comment
Analog Devices has introduced an operational amplifier that combines an easy-to-use voltage-feedback architecture, unity-gain stability, and pin-out optimised for high-performance systems. This unique set of features, combined with 1-GHz speed, low noise, and low distortion, simplifies design and makes the AD8045 ideal for many high-speed applications including medical instrumentation, ATE, and data-acquisition systems.
Smallest 16-bit D/A converters meet the performance, size challenge of industrial apps
Product News  
9/21/2004   Post a comment
Analog Devices rounds out its recently introduced D/A converter family of nanoDACs, offering 12- to 16-bit resolution in a very small area to meet the industrial and test requirements.
Power-sensing circuit breaker protects portable computers
Design How-To  
9/21/2004   Post a comment
Most circuit breakers sense current. Fuses, for example, protect a circuit by blocking the current when it exceeds a limit. Current-sensing circuit breakers work well for constant dc or RMS supply voltages, but for a variable supply voltage such as the battery in a notebook computer, power sensing is safer.
Online tools promote an understanding of the non-ideal non-inverting amplifier
News & Analysis  
9/21/2004   Post a comment
The non-inverting amplifier configuration is one of the simplest, most basic applications of an op amp. In college circuits courses, students derive the transfer function of the ideal non-inverting amplifier from simple equations. An online circuit simulator makes it easy to come with a practical design. A National Semiconductor technology shows how.
TDR helps isolate electronic package faults (Part 2)
News & Analysis  
9/21/2004   Post a comment
Time Domain Reflectometry is increasing in importance as a non-destructive method for fault location in electronic packages. In this multipart series, TDA Systems' famous fault finder, Dima Smolyansky, shows some package faults like shorts and opens, and explains how they are likely to show up on TDR measurement screen. The first part, published last week, offered a review of Time Domain Reflectometry basics. Part 2 here, also available in this week's Planet Analog magazine, begins the process o
Power Integrations lowers guidance as orders fall
News & Analysis  
9/20/2004   Post a comment
Power Integrations Inc. (San Jose) said Monday (September 20) it expects revenue for the third quarter ending September to be 7 to 9 percent below second quarter revenue of $35.9 million, instead of a previous guidance of a 6 to 12 percent increase.
What's up with down converters
Product News  
9/20/2004   Post a comment
Up/down converters fit nicely into the plans of many designers of communications products, says Editor Paul O'Shea. They offer filtering and tuning for multistandard signals, and even help reduce parts count by reducing the number of intermediate frequency stages. O'Shea tells you what the issues are and what manufacturers offer.
Clock Generator - six identical, buffered LVTTL outputs
Product News  
9/20/2004   Post a comment
Maxim introduced the MAX9486, a cost-effective, high-performance clock generator with an 8kHz reference-clock input. It is the best timing solution for ADSL/VDSL central-office line cards, T1/E1, T3/E3, and telecom network systems. The circuit uses a 17.664MHz crystal and an 8kHz input reference clock to generate six identical, buffered LVTTL outputs at 35.328MHz, which are all synchronized with the 8kHz input clock.
CDMA 850 Power Amplifier - with integrated duplexer
Product News  
9/20/2004   Post a comment
EPCOS has set another milestone in miniaturization of passive electronic components for the CDMA 850 mobile radio standard with the PaiD (power amplifier with integrated duplexer) module, which measures only 8.0 x 5.0 x 1.5 mm.
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