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 Products Apr 1, 2005 12:00 PM Flexible electrical conduits with EMI/RFI shielding
Electri-Flex Company offers three types of Liquatite® flexible electrical conduits with EMI/RFI shielding. These liquid tight conduits permit traditional wiring solutions in shielding applications, providing an alternative to costly, specialized shielded cable assemblies. They are designed to protect sensitive electronic circuits in such applications as communications, radar and data transmission. All versions accept industry-standard liquid tight connectors and address the problems of assembly and grounding. Electri-Flex's Liquatite EMI/RFI shielding conduit is available in three types. Type EMS offers a shielding effectiveness from 126 dB at 1 MHz to nearly 100 dB at 1 GHz with a temperature rating of -55°C to +105°C. EMS features a flexible core constructed of a helically wound, interlocked strip of bronze. An all-temperature PVC jacket is extruded over the core, resulting in a sealed, waterproof raceway when assembled with liquid tight fittings. Type LAS, UL listed, is a flexible steel conduit with a galvanized steel core, over which a tinned copper shielding braid is applied. The outer jacket is flexible PVC with a temperature rating of -20°C to 60°C with a shielding effectiveness from 126 dB at 1 MHz to 66 dB at 1 GHz. Type EMSP is a hybrid of LAS and EMS, but gets further screening protection from a tinned copper shielding braid under the flexible jacket. With the same working temperatures as EMS, EMSP's shielding effectiveness ranges from 126 dB at 1 MHz to 120 dB at 1 GHz. High-capacity SATA drives
SimpleTech Inc. has extended its Zeus Zeus SSDs are fully ATA-compliant and conform to the same mounting requirements as traditional hard disk drives, making Zeus SSDs drop-in replacements for any standard IDE/ATA-compliant hard disk drive. Additionally, Zeus SATA SSDs have longer cable lengths than IDE drives making the drives easier to route and install. The product's patent-pending design combines low power consumption with the highest storage density (GB per cubic centimeter) available in an SSD solution. Because there are no moving parts, Zeus SSDs eliminate the electromechanical noise and delay inherent in traditional rotating media. The drives have unlimited read cycles, two million write cycles, 10-year data retention, and are enclosed in an impact-resistant aluminum alloy case. SimpleTech Zeus SATA SSDs incorporate cutting-edge security features that comply with the most rigorous security standards issued by the Department of Defense (DoD 5220.22-M), National Security Agency (NSA 130-2), Air Force (AFSSI 5020), Army (AR 380-19), and Navy (Navso 5239). Military applications include mission data recorders, black boxes, navigation systems and field computers. SimpleTech's Zeus SATA SSDs are shipping. Both SATA and Ultra DMA SSDs are available in standard 2.5-inch and 3.5-inch form factors, as well as custom form factors, and ranging in capacity from 2 GB to 128 GB. OEM pricing is available. High stability SAW oscillators in military temperature range
ILSI America's SAW stabilized oscillators, series I1050, available at 1030 MHz or 1090 MHz, will operate at 12 dBm ±2 db with stability of ±300 KHz over -55°C to 105°C. The oscillator can be JAN or JANTX compliant if required. Packaged in an eight-pin hermetic dip 0.97" × 0.5" × 0.2." Custom frequencies are available from 500 MHz to 2 GHz. Price is $85.00 each for 1000 pieces. Delivery is 10 to 24 weeks ARO. Extremely small, low-power infrared transceiver module
Agilent Technologies has introduced what is said to be the industry's smallest, lowest-power infrared (IR) transceiver that enables virtually any hand-held device to function as a universal IR remote control. The device is supplied in a small package, measuring 1.6 mm high × 7.0 mm wide × 2.8 mm long. The new transceiver, the HSDL 3007, offers a remote-control distance of up to approximately 23 feet with an infrared data association (IrDA) link distance of up to 20 inches. The transceiver can be used for IrDA and remote-control applications without additional external components. It is compliant with IrDA physical layer version 1.4 low-power standards and operates at serial infrared (SIR) data rates from 9.6 kb/s to 115.2 kb/s. The logic input/output interface of the HSDL 3007 operates at 1.8 V. Its combination of a very low idle current of less than 100 microamperes and a shutdown current of 10 microamperes, (both typical), help to extend battery life in mobile devices. The HSDL-3007 is priced below $1.50 each in moderate volumes. Samples are available and volume quantities will become available in the third quarter. Three-stage, balanced power amplifier
Mimix Broadband Inc., Houston, TX, has introduced a chipset that produces more than +26 dB of gain and 1 W of output power. The set comprises a gallium-arsenide (GaAs), three-stage balanced power amplifier and a complementary three-stage driver amplifier. The balanced power amplifier and driver amplifier, identified as the 44MPA0478 and the 44MPA0470 respectively, are well suited for wireless communications applications such as millimeter-wave, point-to-point radio, local multipoint distribution services (LMDS), and SATCOM applications. Both devices are tooled in 0.15-micron, gate-length, GaAs pseudomorphic high electron mobility transistor (pHEMT) technology. The power amplifier is a balanced design that achieves a good output match and covers the 43.5 GHz to 46.5 GHz frequency band, providing a small signal gain of 13 dB with a +29 dBm P1dB compression point. The driver amplifier covers this same band, delivering a small signal gain of 13 dB with a +24 dBm P1dB compression point. Engineering samples as well as production quantities are available from stock. Tiny, high-performance RF connector
Corning Gilbert has introduced an unusually small, push-on, high-performance, microwave interconnect system. This 50 V G3PO connector is approximately 30% smaller in size than the GPPO and was developed in response to demand for increased package density, lower weight, and superior performance at the higher frequencies. The G3PO is well suited for a variety of military and commercial applications. The G3PO connectors support increased package density due to a center-to-center pitch of 0.085 in, minimum, as well as a PCB-to-PCB stack height of 0.120 inches, minimum. The connectors cover the frequency range from dc to 65 GHz. Typical VSWR is 1.1:1 to 26.5 GHz and 1.25:1 to 65 GHz. The design makes allowances for radial and axial misalignment with negligible VSWR change and meets environmental requirements in accordance with MIL-PRF-39012. The G3PO standard blind-mate interconnect, part number R1R1-0001-01, weighs 0.2 milligrams. The G3PO product line includes custom blind-mate interconnects, edge-launch and surface-mount connectors, cable connectors — male and female — multiposition blocks, in various sizes and detents, and hermetic and load connectors. Software platform to assist in developing intelligence systems
Spectrum Signal Processing Inc. has introduced its SDR-2000 ERDP, an electronic intelligence (ELINT) rapid-prototyping and development platform, which is designed to promote the rapid development of intelligence systems targeting the intercept and processing of radar signals. This off-the-shelf, software-defined platform is designed to support the emitter detection and identification functions of an ELINT wideband spectral analysis platform. The system provides two receive and one transmit channel at an industry-standard data rate of 213.33 megasamples per second supporting a 160 MHz intermediate frequency with bandwidths in excess of 80 MHz. The SDR-2000 ERDP supports specific emitter identification. Digital input/output is provided for control of RF front-ends for applications where each channel continuously “stares” at a single frequency band — or where the RF front-ends are stepped through a larger frequency band as part of a search strategy. The transmit channel can be used to calibrate and test each of the receive channels and provides a mechanism for supporting non-collocated electronic attack within the same platform. Connectorized prescaler dividers
Hittite Microwave Corporation has introduced three wideband MMIC-based prescaler dividers that are well suited for military, space, wideband telecom, and microwave radio applications from 0.5 GHz to 18 GHz. The HMC-C005, HMC-C006, and HMC-C007 offer divide ratios of 2:1, 4:1 and 8:1 respectively. The input power may range from -15 dBm to +10 dBm at midband. They deliver -4 dBm of output power with an ultralow, additive single-sideband phase noise of -150 dBc/Hz. Each of these dividers operates from a single +5 V supply at 98 mA, or less. The prescaler dividers are housed in hermetically sealed enclosures with internally dc-blocked I/Os and field-replaceable SMA connectors. Low-cost, rugged coaxial attenuators unveiled
Vista RF Inc. has introduced a line of off-the-shelf, economical rugged coaxial attenuators designed for broadband applications in commercial and defense frequency bands. The VSA series of fixed attenuators operate from dc up to 6 GHz and are offered in economical brass and stainless-steel versions. The 2 W VSA-MB product line is offered in a SMA male-to-female housing and features all-brass construction. It is available in attenuation values from 1 dB to 10 dB in 1 dB increments, as well as fixed values of 15 dB, 20 dB and 30 dB, all with ± 0.3 dB flatness and with a typical VSWR of 1.15:1 across the band. The VSA-MS is a 2 W SMA male-to-female attenuator constructed of stainless steel and available in attenuation values from 1 dB to 10 dB in 1 dB steps, as well as fixed values of 15 dB, 20 dB and 3 0dB, all with ± 0.3 dB flatness and 1.15:1 typical VSWR across the band. The VSA-N product line is offered in an N-type male-to-female housing, in two different materials for durability and versatility. The VSA-NB is constructed with a solid brass body and is available in 10 dB to 30 dB versions in 5 dB increments with a 3 W and 5 W power-handling capability. All of these models exhibit a ± 0.3 dB flatness and a typical VSWR of 1.20:1 across the band. Whereas, the VSA-NS has a housing constructed of stainless steel and is available from 10 dB to 30 dB in 5 dB increments with a 5 W power-handling capability. The VSA-NS models exhibit ±1.0 dB flatness and a typical VSWR of 1.20:1 across the band. Precision voltage divider
Providing military and aerospace analog design engineers with a precision two-element resistor network in a 1206 chip package, TT Electronics IRC Advanced Film Division has developed a military voltage divider that provides two matched resistors with precision absolute and ratio tolerances (±0.05%/±0.01%) on a single chip. Designated the D1206 series, the ceramic chip exhibits better TCR tracking, higher accuracy, and significant board space savings compared to designs using two discrete resistors. It is designed for precision analog circuit designs for military and aerospace applications, especially gain control circuits in op-amps and as a reference voltage for military power supplies. The tantalum nitride (TaN) resistive element provides long-term stability over time and temperature, and is impervious to the corrosion problems experienced with other types of resistive materials under biased humidity and other harsh conditions. The series voltage divider is composed of two TaNFilm resistors on ceramic substrate, packaged on a standard 1206 size chip, which has a lower profile and occupies less board space than plastic packaged (SOT-23) networks. The D1206 series dividers feature absolute tolerances to ±0.05% and ratio tolerances to ±0.01%. TCRs are ±25 ppm/°C absolute and ±5 ppm/°C tracking. Power dissipation is 250 mW and the operating temperature range is -55°C to +125°C. The voltage divider is approved to DSCC drawing No. 01033, and is referenced under MIL-PRF-55342, Group A & B screening. The devices are manufactured on the same production line, with the same materials under the same stringent processes as the company's MIL-PRF-55342 resistors, which meet Class S failure rate, one of the highest levels of military qualification. Pricing is $1.00 in quantities of at least 1,000 pieces, with lead times of eight to 10 weeks.
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