ESD devices save space in high-speed, high frequency apps Product News 12/31/2003 Post a comment A new series of electrostatic discharge (ESD) protection diodes from Royal Philips Electronics protect consumer and communications applications from ESD and other voltage induced transient pulses, and saves up to 90% board space in high speed, high frequency applications.
Transformers designed for rugged mil specs Product News 12/31/2003 Post a comment The rugged 4260-1646 and 4260-1647 Series of data bus interface transformers from Datatronics Romoland, Inc. support high-speed data transmission requirements in a wide range of mission critical industrial and military applications.
Quad regulator takes care of LCDs Product News 12/30/2003 Post a comment Linear Technology's LT1943 quad output regulator is designed specifically to power and protect 22-inch and larger thin-film transistor liquid-crystal display (TFT LCD) panels. Included in the power block (three supplies for the display as well as a 3.3- or 5-V logic supply) is a 2.6-amp boost regulator to drive the TFTs, a high voltage TFT biasing output, an inverter for negative TFT biasing, and a 2.4-amp buck regulator to power VLOGIC. All of the switchers are synchronized to an internal 1.2 M
Tactile sensors flex to all pressures Product News 12/30/2003 Post a comment Combining a sensor with signal conditioning electronics, Pressure Profile Systems, Inc.'s new C500 tactile sensor can discern the slightest pressure on curved and angular surfaces.
Single Chip Processor for DVD Recorders Product News 12/30/2003 Post a comment Murray Slovick's first take on the DMN-8602 processor for DVD recorders is that LSI Logic has come to play. Of particular note is the company's claim that the chip integrates a number of system functions resulting in a cost reduction (BOM) of up to $20 over and above LSI Logic's previous DVD recorder parts.
Active-clamp PWM controller peaks ZVS designs Product News 12/29/2003 Post a comment National Semiconductor's LM5025 is an active-clamp PWM controller for high-frequency forward converter topologies designed to boost the efficiency and power density of conventional forward regulators. Using the company's analog bipolar-CMOS-DMOS technology to cut external component count, the LM5025 integrates a 3-amp driver, 100-volt start-up bias regulator and a user programmable 1 MHz oscillator, and the chip exhibits a total propagation delay of less than 100 ns, thus suiting it to a variety
DC/DC driver IC addresses pre-biased loads Product News 12/29/2003 Post a comment Intersil's new ISL6608, for driving two n-channel power MOSFETs in synchronous-buck, multiphase power converters, features a diode-emulation mode that eases power-up into a pre-biased load and maximizes performance under light-load conditions.
Eighth-bricks tout high thermal performance Product News 12/29/2003 Post a comment Ault's HDE1-75 single-output eighth-bricks, suited to high-temperature ambient environments, deliver up to 25 amps at 1.8, 2.5, or 3.3 volts from a 36-75 VDC input. Using the company's Tronix-Flex technology, these 75-watt, 350-kHz DC/DC converters feature an FET array design that stacks MOSFETs in parallel on multi-level printed circuit boards and an integrated heat sink to achieve high power density at elevated temperatures (100 watts/in3 at 85°C) despite minimal air flow.
VMIC's CompactPCI SBC packs Intel's latest Pentium M micro Product News 12/24/2003 Post a comment GE Fanuc Automation Americas, also known to board users as VMIC, previews a new hot-swappable single-slot CompactPCI board that features Intel's latest Pentium M processor technology. The new board's processor clocks at up to 1.6-GHz, yet performs many applications comparable to a 2.4-GHz Pentium---but it dissipates half the power. Although only a preliminary datasheet is available, eeProductCenter Senior Tech Editor Alex Mendelsohn enumerates some if its salient features.
First Digitally Controlled Microphone Preamplifier? Product News 12/24/2003 Post a comment TI introduced the industry's first digitally controlled microphone preamplifier IC. The PGA2500 is designed for use as a front end for high-performance analog-to-digital converters in a variety of professional audio applications, such as microphone preamplifiers, digital audio mixers and recorders, and broadcast and studio equipment.
1500-Mbit/s BERT Product News 12/23/2003 Post a comment The BA1500 is a 1500-Mbit/s bit-error-rate tester (BERT) optimized for UWB, Sonet, and cable modem measurements.
Single-slot PowerPC-based VMEbus SBC salutes MIL/aerospace applications Product News 12/23/2003 Post a comment With military budgets flush, and defense spending in full swing, board-level MIL-Std. products are in their ascendancy. DY 4 Systems has a new single-board computer that has both flexibility and vast processing power---and Mil-Std.-1553 airframe bus communications hooks. It runs dual Motorola PowerPC microprocessors clocking as fast as 1.3 GHz.
Multi-function BER tester pinpoints hits Product News 12/22/2003 Post a comment Here's a spanking new instrument from Noise/Com that will let you do eye mask, BER, and jitter tests for fast serial data streams. Use it in the lab or networked on the factory floor, or for more esoteric things such as semiconductor characterization.
Open-source planning tool helps make live voice-quality measurements Product News 12/19/2003 Post a comment Here's news of an open-source add-on tool for making meaningful voice quality measurements on all kinds of telephony gear---both wired and wireless.
Used during the design phase of a product, it can yield margin by avoiding customer-related issues in the field. It can also help you evaluate voice network performance.
Active-clamp PWM controllers tweak switchmode supplies Product News 12/19/2003 Post a comment Texas Instruments' newest generation of pulse-width modulation (PWM) controllers, the UCC2891 through UCC2894, are designed to significantly simplify implementation of active clamp/reset and synchronous rectifier topologies for high-efficiency switching power supplies. The peak current-mode controllers increase efficiency in off-line power supplies and DC/DC converters used in high-end desktops, servers, 48-volt telecommunications, data communications and 42-volt automotive systems.
STMicroelectronics' embedded Dual-Mac DSP core tops 600 MHz Product News 12/19/2003 Post a comment STMicroelectronics is targeting the new generation mobile terminals, cellular infrastructure equipment, networking, broadband modems, voice-over-IP, data storage and mobile multimedia for its new embedded dual-MAC DSP core that can run at above 600MHz or that consume less than 0.1mW/MMAC (Million MAC) in a typical portable telecom application.
Secondary-side drivers do more to protect MOSFETs Product News 12/19/2003 Post a comment Linear Technology's LTC3900 and LTC3901 are two secondary-side synchronous N-channel MOSFET drivers designed to go the extra mile to protect the external MOSFETs of a DC/DC converter during normal and light load operation, power up/down, and when the driver supply voltage drops too low. A programmable timeout function disables the synchronous drivers when the synchronization signal between the primary and secondary sides is missing or incorrect. Additionally, the ICs turn off the MOSFETs if indu
ADI broadens software tools line for DSPs Product News 12/19/2003 Post a comment Analog Devices, Inc. is beefing -up its line of software tools for its DSPs with the launching monday Dec. 22 of USB-based emulators and the VisualDSP++ integrated development and debugging environment (IDDE) release 3.5.
ICs regulate satellite receivers Product News 12/19/2003 Post a comment Allegro MicroSystems' four new low-noise block voltage regulators (LNBRs) are designed for satellite set-top box systems. They provide both power and interface signals to the LNB downconverter via the system's coaxial cable. The new chips provide the flexibility of two-way digital satellite equipment control (DiSEqC) encoding or, optionally, legacy system compatibility (non DiSEqC operation).
Phihong launches industrial quad-output supply Product News 12/19/2003 Post a comment Phihong's PSF-149 is a departure from the company's broad portfolio of open-frame AC/DC supplies, an enclosed 150-watt quad-output unit suited to industrial OEM applications. Working from a 100-240 VAC input, it delivers +5 volts at up to 15 amps (30 cfm), +12 volts at up to 5 amps, -5 volts at 1 amp and -12 volts at 1 amp for test equipment, networking systems, business machines and process control hardware.
DC/DC front-end brick integrates sequencing Product News 12/18/2003 Post a comment Power-One's HBCS25ZH DC/DC front-end, an addition to the company's maXyz family, is a 36- to 75-volt in, 12-volt out 300-watt half-brick that provides sequencing of up to four point-of-load converters, thus eliminating the need for an external controller and simplifying the design of board-level intermediate-bus architecture (IBA) power systems.
Mill-Max expands contact offering Product News 12/18/2003 Post a comment Mill-Max Manufacturing Corp. now offers an ultra-low profile spring-loaded contact and double row contacts on carrier tape. Applications include a battery charger interface for portable products such as mobile phones, bar code readers, as well as medical and test instruments.
Synch modules include Stratum 3E capabilities Product News 12/18/2003 Post a comment Connor Winfield's new SM3E timing module provides a clock output that meets or exceeds Stratum 3E specifications stated in GR-1244-CORE, GR-253-CORE and ITU-T G.812. The 3.3-volt synch module is a complete system clock module for Stratum 3E timing card applications, shared port adapters, data digital cross connects, ADMs, DSLAMs, multi-service platforms, switches and routers in TDM, SDH and SONET environments.
Looking ahead: Op Amps are hot and getting hotter Product News 12/18/2003 Post a comment What a year it has been for operational amplifiers, those versatile circuits that can be hooked up to your design in hundreds of ways. Several companies have introduced upwards of 50 different op amp products in 2003 with predictions to introduce similar numbers in 2004. In just the 100+ MHz region there were more than 150 new op amp introductions from the suppliers this year.
Blog Doing Math in FPGAs Tom Burke 23 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 ...