Broadband, solid-state power amplifier
Comtech PST's model BME27258-30 is a solid-state class AB linear amplifier, which operates over the full 20 MHz to 2500 MHz frequency range in a single module. The typical P1db is 30 W, with a saturated output power of 35 W to 80 W. It has been designed for use in rugged military environments and is capable of being produced at high rates of volume. The gain of this amplifier is 53 dB, 64.0 dB. The input VSWR is 2:1 (maximum). The harmonic rejection is -15 dBc, and its spurious signal is -60 dBc. The RF input and output connectors are type SMA female. The BME27258-30 is designed to operate up to 30000 feet in temperatures ranging from -40 °C to +85 °C. The amplifier is compact (6.4 in. × 2.5 in. × 1.5 in.) and weighs 2.5 pounds.
ESD protection for HDMI connections
STMicroelectronics has enlarged its portfolio of ultralow-capacitance protection ICs for the high-definition video market. The device allows a high-definition multimedia interface (HDMI) to operate at full HDMI speed of 1.65 Gbps and 3.2 Gbps, with full 15 kV contact and air electrostatic discharge (ESD) protection. The HDMIULC6-4SC6 is a monolithic, application-specific device that provides complete rail-to-rail protection of four data lines without compromising signal integrity.
Protecting high-speed data ports is challenging. Any capacitive loading introduced by protection devices can significantly degrade the signal integrity. This is significant at the high data rates required by HDMI connections in computer and consumer electronics. Previous solutions on the market typically presented a capacitive loading of several pico-Farads, which is high enough to require designers to make difficult trade-offs between the level of protection and the resulting signal degradation at typical working data rates.
The ultralow line capacitance (0.6 pF) of the HDMIULC6-4SC6 provides a new level of performance. Designers can protect these high-speed interfaces against 15 kV air and contact discharges, above IEC 61000-4-2 level 4 standard, while minimizing distortion of the HDMI signal.
The ultrahigh cut-off frequency of 5.3 GHz guarantees data integrity. The HDMIULC6-4SC6 offers better impedance matching (0.015 pF vs. 0.04 pF), low leakage current (0.5 µA maximum), and minimal channel imbalance, signal skew and crosstalk (0.007 pF vs. 0.13 pF).
The device is compatible with other high-speed interfaces such as IEEE 1394a/b, USB2.0, Ethernet links and video lines. The footprint of the HDMIULC6-4SC6 is compatible with ST's USBLC6-4SC6 and DVIULC6-4SC6 ESD protection devices for USB 2.0 and DVI ports, respectively, allowing easy board upgrades.
Housed in an SOT23-6L package, the HDMIULC6-4SC6 is in full production and costs $0.25 in quantities of 2500 pieces.
Tools for development of distributed real-time applications
The RTI Developer Platform tool suite from Real Time Innovations (RTI), enables the development, debug, analysis and optimization of distributed systems and applications that must deal with multiple sources of event-driven, time-critical data and seamlessly tie complex networks of independent devices into a logical and manageable whole.
The RTI Developer Platform tool suite targets a development environment based on the open-standard Data Distribution Service (DDS) and addresses two specific problems facing designers of real-time distributed systems. First, as the size and functionality of a distributed system increases, applications generally do not scale well. Second, application developers are forced to address performance requirements of the system through careful use of techniques such as optimized coding, thread management and awareness of network topology at the application-code level.
RTI Developer provides a dynamic view of an active system from a node and data topic perspective. This enables visual validation and debugging of run-time behavior. RTI Scope allows live monitoring of message and data transmissions with time histories to enable debug of publisher-subscriber interactions. RTI Protocol Analyzer permits developers to monitor physical network traffic and provides the detailed packet and timing information that allows the optimization of a system implementation. This ensures the most efficient use of the underlying physical carrier(s), enabling fine-tuning for performance purposes.
The RTI Developer Platform tool suite is available immediately for Microsoft Windows, Linux and Sun Solaris hosts. Pricing begins at $11,995 for three developers, which includes one year of maintenance and support.
RTI Data Distribution Service is licensed separately. It is available for many operating system and processor combinations, including Windows, Windows CE and Windows Mobile; Solaris; Linux; LynuxWorks LynxOS; Wind River VxWorks; and Green Hills INTEGRITY configurations. Development packages begin at $84,600, which includes a comprehensive architecture study, two days of customer-specific training, one week of follow-up consulting, and one year of maintenance and support.
Real Time Innovations
Microchip Technology's four-member PIC18F4523 family of high-end 8-bit Flash microcontrollers includes a high-speed 12-bit analog-to-digital converter (ADC) peripheral on-chip. This microcontroller family includes nano-Watt technology features, which can eliminate the cost and complexity of interfacing to an external ADC, while providing the precision required for high-speed, high-resolution sensor measurements in applications such as medical, industrial and utility metering.
The high-end 8-bit microcontrollers with 12-bit, 13-channel ADCs and advanced power managements come in small 28-, 40- and 44-pin packages.
Additional key features of the PIC18F4523 microcontroller family include:
10 MIPS performance;
32 or 16 Kbytes of enhanced Flash program memory;
256 bytes of EEPROM data memory;
up to 1536 bytes of RAM;
two analog comparators with input multiplexing;
up to two capture/compare/PWM modules;
master I2C and SPI communication module;
enhanced USART module with RS-485, RS-232 and LIN support;
one 8-bit and three 16-bit timers; and
internal oscillator (32 MHz to 31 kHz).
The PIC18F4523 family maintains compatibility with Microchip's free MPLAB IDE integrated development environment, MPLAB C18 C compiler, MPLAB ICD 2 in-circuit debugger and emulator, and the MPLAB PM3 universal device programmer.
The PIC18F4523/4423/2523/2423 microcontrollers are available for general sampling at http://sample.microchip.com and volume-production shipments at www.microchipdirect.com. The PIC18F4523/4423 come in 44-pin QFN or TQFP and 40-pin PDIP packages, and the PIC182523/2423 are available in 28-pin QFN, SOIC and SPDIP packages, all of which are RoHS-compliant. Prices start at $3.49 each in 10,000-unit quantities.
OSRAM Opto Semiconductors' Platinum Dragon high-power LED produces white light at 75 lm from an operating current of 700 mA (30 lm/W). Potential efficiencies range from 30 lumens to 50 lumens per Watt depending on actual application drive current.
The Platinum Dragon is a high-performance LED-emitting maximum light from the smallest possible source. Additionally, it has the same design and dimensions as the Golden Dragon package — only 1.8 mm height — but can withstand twice the input and a higher operating current. This means more light in the same amount of space.
The availability of the Platinum Dragon's color portfolio and external optics, as well as its extraordinary brightness, open up possibilities for almost any lighting application. Flashlights, bicycle lamps and flashing blue lights for emergency vehicles are some of the many application possibilities, while existing applications such as traffic lights, flashing warning lights on building sites, reading lights in cars and aircraft, and medical lamps can now be brighter without design modifications.
The high-power ThinFilm and ThinGaN chips, better thermal connection between the chip and the package, and optimum heat dissipation of the SMT package itself, all add up to a significant boost in output for this LED.
OSRAM Opto Semiconductors
+49 89 6213-0
Modbus system, solar power kit
FreeWave Technologies has released the FGRIO Modbus system, a communications protocol, and the Solar Power Kit, which allows for significantly reduced set-up time for its radio systems.
The FGRIO Modbus multipoint network enables direct analog and digital wireless connections to all FGRIO functions and eliminates the need for wire between the host and the RTU. The radio provides cost savings for wire replacement and reliable data communications. FGRIO Modbus master radios supports more I/O points of access — with up to 246 slave radios. Each slave supports two analog inputs, two digital inputs and two digital outputs on a single network. The system's 20-bit analog conversion ensures high accuracy between each slave radio's analog inputs, and its repeater capability efficiently avoids link obstructions between radios.
FreeWave's Solar Power Kit is composed of a 5 W, 12 V solar panel and comes with easy-to-use instructions as well as all of the necessary hardware and wiring — making set up time even quicker and easier.
FreeWave's FGRIO Modbus multipoint network system and Solar Power Kit are available for immediate shipment.
SAW filters for WiMAX applications
Vectron International's new series of surface acoustic wave (SAW) filters are designed to meet the needs of the evolving WiMAX industry.
Available at several center frequencies and bandwidths required for all key WiMAX applications, the filters provide low insertion loss, a small group delay ripple and high stop-band attenuation. Depending on the overall performance, the SAW filters are packaged in a 3.8 mm × 3.8 mm or 7 mm × 5 mm SMD package, and can be driven balanced, unbalanced or both.
Waterproof marine omnidirectional antenna
Astron Wireless has introduced its waterproof, marine, omnidirectional, VG2400 and V900 series antenna. This rugged, unity-gain antenna is suited for all types of marine and military applications including fresh and saltwater environments. The broad, vertical, beam-width provides continuous, uninterrupted, wide-area coverage even when installed in unstable surfaces. It is perfect for use on boats, ships and ocean buoys. Plus, no field tuning is required to achieve maximum performance.
Astron's all brass, center-fed dipole delivers a clean radiation pattern without ground radials. These antennas are encased in heavy-wall fiberglass, sealed with shrink tubing to ensure waterproof protection, enabling optimum performance in any marine environment. Coupled with epoxy end caps, risks of water penetration are eliminated. The VG2400 and V900 series antennas are available with fixed or pigtail applied connectors. All connectors and cables are completely sealed with shrink-wrap and DP-190, warranting maximum protection.
Astron Wireless Technologies Inc.
Mobile WiMAX base stations, mobile terminals
ADAPTIX has announced pricing and availability for its line of high-performance compact mobile base stations and mobile terminals. The BX-3000 series of mobile base stations will be available at volume street pricing starting at $19,995 for a single-sector configuration. A high-performance three-sector base station configuration is also available at volume street pricing starting at $39,995. Additional options include hardware redundancy, intermediate and long reach fiber optics and a variety of indoor and outdoor RF unit options with different power and antenna configurations.
The BX-3000 features a flexible “virtual base station” architecture that combines wide-area wireless performance with application flexibility. Built on the IEEE 802.16e-2005 standard, the BX-3000 design incorporates software-defined radio technology, providing an OFDMA solution that can be easily upgraded, if required, to accommodate future standards and services. The BX-3000 baseband unit acts as a central hub for multiple remote RF units, all connected via high-speed fiber optic cabling. This virtual base station architecture offers interference-resistant operation with optimal RF performance, maximal deployment flexibility and minimal installation cost. The BX-3000 was designed to minimize installation and maintenance overhead, reducing operations costs in deploying 4G infrastructure.
Supporting 802.16e functionality, the SX-300 provides approximately 4 Mbps of aggregate airlink performance and will be available at volume street pricing starting at $349 in 2.3 GHz or 2.5 GHz profiles.
Packaging and Interconnects
Phase-stable cable assemblies
CDM Electronics is offering phase-stable cable assemblies using Times Microwaves Systems' PhaseTrack -210 cables with TF4 dielectric technology. This dielectric is a flouropolymer material process developed for employment in RF and microwave applications requiring an extremely linear phase-temperature characteristic while addressing system designers' demands for flexible cable. The cables boast phase change with temperature of < 1.5 ppm/°C (-55 °C to +85 °C), and will not develop a Teflon “knee” as they do not undergo the change in dielectric constant and abrupt change in electrical length that LD-PTFE cables experience at normal room ambient (approximately +18 °C/+65 °F) conditions. As they additionally withstand repeated flexure while remaining within tight electrical specifications, the assemblies are an alternative to LD- PTFE, SiO2 (silicon dioxide) or other conventional cables.
Featuring triple shield construction to provide shielding effectiveness of better than -100 dB, the cables' outside diameter measures 0.210 in. The 50 Ω impedance cables have a minimum bend radius of 1.00 in. (25.4 mm). They typically measure 0.14 dB per foot at 2 GHz, 0.39 dB per foot at 10 GHz, 0.59 dB per foot at 18 GHz, and yield a low 1.35:1 VSWR. Phase stability with bending is 1° at 18 GHz. Their operating voltage is 2500 V (1000 V with SMA connectors), whereas cables' operating temperature range is -55 °C to +125 °C.
High-power fixed attenuator
Mini-Circuits' 50Ω, 40 dB, 100 W fixed attenuators are suitable for testing high-power components used in communication systems. These attenuators are ideal when testing high-power amplifiers while using low power test equipment. With 40 dB attenuation, they can also be used as a termination for high-power amplifiers.
The BW-40N100W attenuators, operating from dc to 4 GHz, are priced at $249.95 each, in quantities of one to nine.
(718) 934 4500
Want to use this article? Click here for options!
© 2013 Penton Media Inc.
Acceptable Use Policy blog comments powered by Disqus
Most Popular Stories
CTIA Wireless IT & Entertainment 2010
Read the latest from the show...