EDN


Semtech R-C Filters for EMI RFI in Handhelds (7/2007)
Semtech is doing more and more analog stuff like switching regulators, FET drivers and charge pumps; but they also make some simple protection circuits that can save you a lot of grief.
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3G Wireless Data: About to Break? (11/2008)
Although the definitions of 3 and 4G wireless data networks, services, and terminals have been moving targets, some long-promised 3G capabilities are starting to appear. Meanwhile, 4G deployments have been delayed even further.

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Power Management ICS: Evolving With Portable Designs (10/2007)
Each year, it seems that new portable electronics devices become smaller, more multifunctional and require a greater degree of power management. The challenge for IC manufacturers is to develop creative power management solutions that reduce total system cost and minimize board space.
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Protecting Interfaces from ESD (12/2007)
Though on-chip-ESD structures serve as excellent secondary protection, they are usually insufficient to protect an interface over years of exposure in uncontrolled environments.
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EE-Times


Apps Dictate ESD Solution Specs (3/2008)
Several key technology trends are changing electrostatic discharge (ESD) protection requirements. High-speed interfaces, for example, affect signal integrity, and shrinking geometries make next-generation ICs more susceptible to ESD damage. Another contributor is the increased use of consumer devices..
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ESD Plan: State of Shock (5/2007)
The arcane realm of electrostatic discharge will finally reach the limelight--and perhaps the boiling point--this month as a group of leading chip makers pushes to reduce the specifications for ESD in digital ICs.
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EE-Times Asia


Five Frequently Asked Questions about System Level Transient Voltage Protection (2010)
This article explores some frequently asked questions regarding the basics of ESD and transient voltage suppression for board level circuit protection on dataline communication circuits.
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Off-Chip ESD Protection Anticipates IC Scaling (2008)
Tomorrow's electronic products need more robust off-chip ESD protection to provide the current level of system protection. By selecting a protection TVS with good clamping performance and applying some basic layout techniques, designers can maximize the chance of passing ESD testing the first time at the compliance lab and ensure greater product reliability in the field.
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EE Times Video Design Line


ESD Protection for HDMI 1.3 (7/2007)
High-Definition Multimedia Interface (HDMI) is the latest standard for devices that handle high-bandwidth, real time data, such as HDTV. However, the higher the data speed and the more advanced the process technology are, the harder it is to protect the IC adequately from over-voltage stresses caused by ESD (electrostatic discharge) or CDE (cable discharge events).
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DisplayPort ESD and CDE Protection for Version 1.1a Compliance (5/2008)
DisplayPort-based systems must protect all potentially exposed interface signals and power pins to meet or exceed the EOS specification of IEC 61000-42,Level 4 (+/- 15kV Air, +/-8kV Contact) without damage, while maintaining eye pattern specs for signal integrity.
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En-Genius Network


EN-Genius WirelessZone -
SX1233: ISM-Band Transceiver Platform with High Bit Rate and Link Budget
(10/2010)
The SX1233, and the SX1231, are breakthrough products that Semtech seems to be making less noise about than they should. With the level of integration reducing the external BoM count to just a few decoupling capacitors and some matching elements the purchase of Xemics in 2005 is really showing its worth.
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EN-Genius LowpowerZone -
SC120/1/2: Boost Converter Platform Offers Smallest Low-Vin Devices
(7/2010)
These three parts are ideal for single-cell operation in portable devices, which could include a myriad of products. These applications have real estate as a critically important factor and the SC12*s cannot fail to please in this respect, especially with the low pin count and low external component count.
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EN-Genius LowpowerZone -
SC493: Entry to Digital Power Market with 28V EcoSpeed I²C PWM Controller
(6/2010)
This is Semtech’s first foray into an I2C interfaced buck controller. It uses Semtech’s patented adaptive on-time control architecture for light load efficiency allowing an analog solution for a buck controller with digital control.
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EN-Genius HighpowerZone -
Semtech SC417 Miniaturized Buck Regulator
(11/2008)
This is an important product introduction for Semtech. Their synchronous buck regulators, up until now, have had a maximum of 4 A (from the SC4624) and the majority of the maximum input voltages have been limited to 5.5 V (with one 7 V part). The move up to an integrated 10 A output together with a maximum input voltage of 28 V (minimum 3 V) opens up a lot of industrial and communications markets to the company.
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EN-Genius AcquistionZone -
Most Innovative Solution For Spanning ADCs: Semtech SX8724 Sensing Platform Device
(12/2007)
The purpose of the technology is to maximize the use of an ADC. We see, regularly, the purchase of unnecessarily higher resolution ADCs because the design engineer cannot get his numbers in order. Control in this part is from the on-chip control logic driven from an I2C interface.
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EN-Genius NetworkZone -
Flexible IEEE1588v2 Slave Device Added to Synchronization Platform
ToPSync-based ACS9550 provides frequency (~1 ppb) and time alignment (1us) that enables Ethernet-based packet backhaul (10/2008)
If you’re considering using IEEE 1588 to help replace costly TDM backhauls, or support other telecom-grade applications, Semtech’s ACS9550, a v2-capable slave chip that offers a flexible way to give your equipment the precision timing capabilities it needs at a reasonable cost.
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EN-Genius AcquistionZone -
SX8725: Award-Winning Data Acquisition Platform Now with Single-Channel Device
Highly-integrated ADC can connect directly to a sensor 4 mm x 4 mm device small enough to reside on sensor board (3/2008)
DisplayPort-based systems must protect all potentially exposed interface signals and power pins to meet or exceed the EOS specification of IEC 61000-42,Level 4 (+/- 15kV Air, +/-8kV Contact) without damage, while maintaining eye pattern specs for signal integrity.
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EN-Genius AcquistionZone -
Semtech’s Latest Ultra-Small Sensing Platform Device Brings Industry-Leading Versatility and Value to Sensor Customers
SX8724 is only 4x4 mm, leverages ZoomingADC capability to directly connect to a wide range of pressure, temperature and magnetic sensors (12/2007)
The SX8724 enables electronics to be co-located with the sensor. With a digital output from the sensor, whether it be magnetic, pressure or chemical, manufacturers can provide a total solution to their customers. The device is designed to operate off a single Li-Ion battery without loss of its 16-bit precision even with a depleted battery.
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EN-Genius WirelessZone -
Rclamp3304P: Breakthrough 2.5V Protection Device Specifically for High-Speed I/O
Designed for Interfaces up to 3 GHz, Including Displays, Multimedia Cards and Secure Digital Interfaces (11/2007)
These parts integrate low capacitance steering diodes (back-to-back) with high surge ratings and a TVS diode across the rails. High-speed interfaces will show less than 0.8 pF capacitances.
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High Frequency Electronics


Advances in Short-Range RF Transceivers Drive Link Robustness (2010)
When designing real-world short-range RF applications in an increasingly crowded RF Spectrum, it is more important than ever to understand your receiver architecture. This article shows you what to look for.
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How2Power Today


DC-DC Converters Deliver Fast Response and High Efficiency (6/2010)
With the introduction of three new EcoSpeed dc-dc converters, Semtech extends the benefits of its adaptive on-time (AOT) control architecture to point-of-load (POL) applications and products with complex power management needs requiring digital control.
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Mobile Dev & Design


Using Digital Modulation to Increase Power Output in FCC Part 15.247 Systems (1/2010)
This article shows engineers can use the digital modulation specification in the Part 15 regulations to increase the output power for ISM band radios without resorting to spreading.
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Power Electronics Technology


Adaptive On-Time DC-DC Converters Combine Speed and Efficiency (10/2010)
Designers wishing to implement point-of-load power circuits now have an energy-saving alternative in these spotlighted buck-regulators.
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Direct Battery Connection Benefits Portable Designs (7/2007)
Directly connecting the battery and load in a portable device improves reliability and reduces cost with only a minor increase in charging time.
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Power Systems Design


Semtech Launches EcoSpeed™ Platform (6/2010)
This article provides a detailed summary of Semtech's new SC173 (3A) and SC174 (4A) point-of-load regulators optimized for demanding “green” applications.
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A New Approach to Keeping Cell Phone Batteries Running (6/2010)
A summary covering how cell phone batteries can actually be recharged without using a typical plug-in battery charger.
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PowerPulse.net


PMIC Digital Control Made Simple Using a Single Wire (1/2010)
Directly connecting the battery and load in a portable device improves reliability and reduces cost with only a minor increase in charging time.
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Test & Measurement World


Develop Software for Test Instruments (1/2010)
This article shows how you can develop software in a way that makes it possible to automate test equipment and allow test operators to test just about anything.
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