Microchip Technology Inc. introduced a complete system for short-range uni-directional RF communications. By combining the rfPIC12F675 microcontroller and transmitters with either the rfRXD0420 receiver or rfRDX0920 receiver, users can create a wireless unidirectional communication link for embedded control applications. Available in a 32-pin low-profile, quad-flat pack (LQFP), the rfRXD0420 and rfRXD0920 single conversion super-heterodyne UHF RF receivers support frequency bands of 300 MHz to 450 MHz and 850 MHz to 930 MHz, respectively.

The devices offer a maximum data rate of 80 kbps, a standby supply current of 100 nA and operate over a voltage range of 2.5 V to 5.5 V. The active supply currents for the rfRXD0420 is 6.5 mA to 8.2 mA depending on the low noise amplifier (LNA) setting and 7.5 mA to 9.2 mA for the rfRXD0920.

The rfPIC12F675 devices are 20-pin PICmicro microcontrollers that feature an integrated UHF RF transmitter. Output power for the transmitter section is specified at 6 dBm for increased range and is available in three frequency ranges: 260 MHz to 350 MHz (rfPIC12F675K), 390 MHz to 450 MHz (rfPIC12F675F), and 850 MHz to 930 MHz (rfPIC12F675H) with a maximum data rate of 40 kbps.

A standby supply current of 100 nA and operating voltage range of 2.0 V to 5.5 V make the devices suitable for low power battery operated applications. The microcontrollers feature a 14-bit instruction set with 1.8 Kbytes of Flash program memory, 64 bytes RAM and 128 bytes EEPROM for non-volatile storage.

Pricing in 10,000 unit quantities is $2.55 each for the rfRXD0420 and rfRXD0920 and $2.03 for the rfPIC12F675. Samples are available and volume production is scheduled for June 2003.
Microchip Technology Inc.
www.microchip.com

Microwave Solutions Inc. introduced its new BGC-DET amplifier series. These binary gain control amplifiers offer a wide range of power from 15 dBm to 30 dBm output power in the X thru KU band frequencies. They have an attenuation range of 30 dB and a control of 8 bit TTL maximum, attenuation steps of .25 dB, nominal L.S.B., and 125 dB. They offer a coupler detection voltage system, have a N.F. of 5 dB, and I/O VSWR 1.5:1. The series can be used for uplink systems that require power control.
Microwave Solutions Inc.
www.microwavesolutions.com

Hittite Microwave Corp. introduced a new HMC311LP3 InGaP HBT gain block MMIC amplifier covering DC to 6.0 GHz. The 3 mm × 3 mm QFN packaged amplifier can be used for 3G, cellular, UMTS, fixed wireless, WLAN, CATV, cable modem and microwave radio applications. It can be used as either a cascadable 50 Ohm gain stage or to drive the LO of HMC mixers with up to +17 dBm power. This amplifier offers 14 dB of gain and an output IP3 of +30 dBm while requiring only 56 mA from a +5 V supply.
Hittite Microwave Corp.
www.hittite.com

RF Micro Devices Inc. announced that it has successfully developed, fabricated and packaged GaN power transistors achieving 28 W performance with continuous wave (CW) operation at 20 volts. These GaN power transistors are fabricated from the current 0.9 micron process and exhibit 10 dB of linear gain. The transistors were used to develop 20 W CW power amplifiers (PAs) for UMTS applications. One use for the GaN transistors is 2.5G and 3G base station power amplifiers.
RF Micro Devices Inc.
www.rfmd.com

Agilent Technologies Inc. announced three new DesignGuide utilities and a new application guide in the latest version of the Agilent Advanced Design System (ADS 2003A) electronic design automation (EDA) software.

According to Agilent, the transistor bias utility improves design flow by automating the biasing of Bipolar, MOSFET and GaAs devices. It automatically extracts transistor DC parameters and synthesizes an appropriate network to achieve a given bias point. The resulting transistor performance is verified and displayed graphically.

The Smith Chart and matching utilities can automatically synthesize matching networks. The Smith Chart's graphical user interface allows designers to create a matching network topology and watch the frequency response in real time. The matching utility allows for both narrow-band and broadband matching. The matching software transforms matching networks' lumped components to ideal transmission lines and microstrip elements.

The load pull application guide allows designers to import load-pull data from Focus Microwave and Maury Microwave load-pull systems. The scattered data interpolation is used to generate load- and source-pull contours for measuring multiple parameters simultaneously.

DesignGuides with the transistor bias, Smith Chart and matching utilities are available for purchase with ADS 2003A. The load-pull application guide is included with ADS 2003A. Agilent ADS 2003A is expected to be available in May 2003 with prices starting at approximately $8,400.
Agilent Technologies Inc.
www.agilent.com.

GL Communications Inc. introduced the Ultra OC-3 Card for testing, analyzing, simulating and monitoring optical networks. The card comes with OC-3, STS-1, T-3, T-1 and E-1 interfaces. It can add and drop T-1, E-1, T-3, or STS-1 signals to and from an OC-3 signal, and can also add and drop T-1 and E-1 signals to and from an STS-1 or T-3 signal. Multiple Ultra OC-3 Cards may be used in conjunction with GL's Ultra T1 Cards, Ultra E1 Cards and Ultra T3 Cards in the same PC with Windows-NT/2000/XP software.

The Card Card plugs into a standard PC expansion PCI slot. Once inserted, it provides network engineers with the ability to interconnect OC-3, STS-1, and T-3 (DS-3) signals, including the ability to extract T-1, E-1, and VTs from the higher rate multiplexed streams. The card is ideally suited for installation, maintenance, commissioning, verification and manufacturing of SONET transport networks and network equipment.
GL Communications Inc.
www.gl.com

California Eastern Laboratories Inc. (CEL) announced the availability of a new series of 2.5G and 10G electro-absorption modulator MQW DFB laser diode modules from NEC Corp. (www.nec.com). With a precision-controlled emitted wavelength of ±20 pm wavelength stability E.O.L., NEC's 2.5G NX8567 series modules are designed for dense wave division multiplexing (DWDM) wavelengths, based on ITU-T recommendations, and offer full C and L-Band coverage. The modules feature a monolithically integrated laser modulator chip and an integrated Fabry-Perot etalon filter and two photodiodes.

The modules are housed in hermetically sealed, 14-pin butterfly packages with internal thermoelectric coolers. Three versions are available: the NX8567SA for 600 km applications; the NX8567SAM for 360 km applications; and the NX8567SAS for 240 km applications.

The 10G NX8560SJ Series modules are designed for use in DWDM systems and 10G transponders. Housed in hermetically sealed standard 7-pin butterfly packages with GPO connectors and internal thermoelectric coolers, they're designed for 40 km DWDM ITU-T-based applications and offer C-Band coverage.
California Eastern Laboratories Inc.
www.cel.com

Rakon Ltd. introduced its smallest highest stability oscillator solution, the IT5300B model, which is designed to enable weak-signal detection for GPS applications.

Improved TCXO performance is required to assist GPS receivers, in detecting and tracking weak signals, resulting from transmission through concrete and steel building structures. According to Rakon, the IT5300B can greatly reduce acquisition times, allowing the GPS system to consume less power.

Employing an analogue IC, this SMD measures just 5 mm × 3.2 mm × 1.5 mm. It achieves +/- 0.5 ppm stability over a wide temperature range of -30° C to +85° C. The IT5300B has a frequency gradient versus temperature better than 50 ppb per degree Celsius, resulting in frequency drift rates below 3 ppb per second while under temperature ramps of up to 3 degrees Celsius per minute. Frequency output ranges from 12 MHz to 26 MHz are available.
Rakon Ltd.
www.rakon.com

Temex Telecom, a unit of Tekelec Systemes, introduced new programmable synthesizer PLLs for microwave communication products from 100 MHz to 2.5 GHz.

The first three devices of this new range are the 1050 MHz to 1090 MHz PLC1050, the 1550 Mhz to 1620 MHz PLC1550, and the 2105 MHz to 2175 MHz PLC2105. The PLL are designed for GSM, DCS and UMTS applications.

The PLC series PLLs display low SSB phase noise, typically around 90 dBc/Hz at 100 kHz. The PLC1050 and PLC1550 are designed for 200 kHz channel spacing, and the PLC2105 supports 100 kHz or 200 kHz comparison frequency.

Output power is -1.0 dBm to +3.0 dBm, 0.0 dBm to +5.0 dBm, and -3 dBm to +3 dBm in the PLC1050, PLC1550 and PLC2105, respectively. The devices are operated from a single 5 V power supply, and programmed via a three line parallel port. Pump charge is also available as an option.

The new PLLs are packaged in the SMP3 surface mount case measuring 19 mm × 14 mm, and feature lead-free packaging technology for ISO 14001 environmental compliance.
Temex Telecom
www.temex.net

Temex Telecom introduced a new range of ceramics for from 900 MHz to 6 GHz. The E6000 series utilizes a new Temex-developed material that provides the same quality and performance as previous resonators, but in smaller cavities and at lower cost, the company says. Its new microwave material increases the dielectric constant to around 45 while maintaining a high Q factor for stable RO designs.

The E6000 family is aimed at applications such as low noise block converters for direct broadcast satellite systems, motion and speed radar detectors, dielectric resonant oscillators (DROs) for communication equipment, and microwave filters and sources.

E6000 series materials are available in a wide selection of temperature coefficients. Initially there are seven variants, with temperature coefficients of -6 ppm per degree C, -3 ppm per degree C, 0 per degree C, +3 per degree C, +6 per degree C, +9 per degree C and +12 per degree C, all offering a Q factor of 8000 at 5 GHz.
Temex Telecom
www.temex-components.com

Fairchild Semiconductor International Inc. announced the introduction of a new QVE00033 phototransistor infrared transmissive switch, featuring new miniature infrared sidelookers. The QVE00033 comes in a temperature resistant black plastic housing with a compact 7.50 mm × 4.05 mm footprint and a 5.40 mm package height. A GaAs light emitting diode faces a silicon phototransistor across a 2 mm gap with a 0.4 mm aperture. The peak transmission wavelength is infrared at 940 nm. Surface-mounting eliminates through-hole pins or wire- leads and contributes to a lower profile. Collector current (IC ON) is 100 µA minimum and 600 µA maximum, collector-to-emitter saturation voltage (VCE SAT) is 0.4 V maximum, operating temperature (TOPR) is -55° C to +100° C, and reflow soldering temperature is 240° C peak. Prices for 1,000 pieces starts at $0.65 each.
Fairchild Semiconductor International Inc.
www.fairchildsemi.com

Torex Semiconductor Ltd. unveiled a new range of power management systems comprising an LDO voltage regulator and voltage detector in one single-chip package.

The XC6403 series provides regulated low-noise outputs and can be configured to monitor various parts of the circuit, including the input, battery level check; and the output, similar to a power ‘OK’ function. In addition to the LDO and voltage detector, the XC6403 also incorporates a voltage reference, an error amplifier, a current limiter and a phase compensation circuit plus a driver transistor.

The XC6403 series has a low power consumption of 30 µA, and is ideal for Bluetooth and wireless LAN applications, the company says. It is particularly suited to noise sensitive designs because of its noise and PSRR performance — 65 dB at 10 kHz.

The XC6403 can detect high or low and can be set to detect VIN, VOUT or another power source using VSEN. The EN function allows the voltage regulator to be switched on or off while the rest of the circuit remains on.

The XC6403's voltage regulator is selectable in 0.1 V increments between 1.8 V and 5.6 V while the detector voltage is selectable in 0.1 V steps within the range 0.9 V and 5.6 V. Maximum output current for the series is within the range 150 mA to 300mA with a drop out voltage of 60 mV at 30 mA and 200 mV at 100 mA.

The XC6403 series is available in a choice of SOT-25, USP-6B and SOT-89-5 package. Operating temperature range is from -40° C to 85° C.
Torex Semiconductor Ltd.
www.torex.co.jp

SaRonix LLC released its SEL381x series of extended frequency LVPECL crystal clock oscillators, optimized for optical network interface cards (NICs). These subminiature oscillators feature a frequency range of 25 MHz through 670 MHz and stability as tight as ±20 ppm encased within a leadless 5 mm × 7 mm ceramic package.

The SEL381x series utilizes an AT-cut quartz crystal bulk-wave resonator to produce its wide frequency range. The series achieves frequency stabilities as tight as ±20 ppm (0° C to +70° C) and ±50 ppm (-40° C to +85° C) while not exceeding 3 ps phase jitter (1-sigma RMS, 12 kHz to 40 MHz band).

The SEL381x supports 3.3 V PECL (LVPECL) operation with typical supply current consumption of 85 mA, and has differential outputs maintaining 45 percent to 55 percent waveform symmetry.

The SEL381x series is now available for prototype and production builds. Prices start at $10 each for 1,000 pieces. Tape and reel packing is available in 500-piece increments.
SaRonix LLC
www.saronix.com

Piezo Technology Inc. (PTI) introduced a new family of high shock TCXO products. This family of products is intended as a frequency source for guided munitions applications.

Model XO3285 is an ASIC-based TCXO capable of surviving a shock of over 50,000 G. It is is available over the range of 10 MHz to 26 MHz. The device is housed in a 0.75 inches × 0.5 inches × 0.14 inches package, and features a stability of greater than 0.5 ppm over -20° C to +70° C. Availability is 12 weeks.
Piezo Technology Inc.
www.piezotech.com

Statek Corp. announced the release of its new-generation CXOM miniature SMT crystal oscillators.

The products consist of a TTL and CMOS-compatible hybrid circuit, and a Statek quartz crystal. Features include a footprint of 5.0 mm × 6.5 mm, maximum heights of 1.4 mm, and voltages ranging from 5 V down to 1.5. A high-shock version is also available to meet industrial and military requirements.

The CXOM oscillators are available in frequencies from 312 kHz to 170 MHz. Temperature range options accommodate commercial (-10° C to +70° C), industrial (-40° C to +85° C) and military (-55° C to +125° C) requirements. Pricing for the CXOM starts at $4.75.
Statek Corp.
www.statek.com

AeroComm Inc. announced the availability of its feature-enhanced 900 MHz spread spectrum transceiver. The company claims the transceiver is less than half the price of similarly specified modules on the market.

The new 900 MHz AC4490 module interfaces via serial TTL level connection, providing transparent bi-directional wireless communication in point-to-point and point-to-multipoint client/server or peer-to-peer networks using AeroComm's proprietary RF232TM transparent protocol.

The module contains protocol to address “over the air” issues such as overcoming interference and multipath problems, detecting data errors, addressing messages to individual radios, securing transmissions from eavesdropping, and verifying link quality.

AeroComm's RF232 protocol allows AC4490 modules to be used as direct cable replacements, requiring no special host software for communication, the company says. Communications include both system and configuration data. All frequency hopping, synchronization, and RF system data transmission and reception is performed by the transceiver.

Typical applications for AC4490 modules include vending machines, automated meter reading, gaming, electronic signs and scoreboards, wheel alignment, pool and spa control, point of sale, fleet management, lighting control and security.
AeroComm Inc.
www.aerocomm.com

X-Fab Semiconductors Foundries AG, announced that it advanced the development of bipolar elements in its 0.6 µm BiCMOS process family and is offering, for the first time, one time programmable (OTP) storage functions. These new modules provide a series of advantages for analog applications, while also being fully compatible with the existing 0.6 µm BiCMOS process.

The new XB05 bipolar module has a maximum frequency of 25 GHz, and is a metal insulator metal (MIM) capacitor. Its linearity is high due to lower resistance resulting from two metal layers and a high-grade insulator layer. Small to medium-sized EPROM storage for OTP memory can be integrated into the modular 0.6 µm BiCMOS process. The typical size of such EPROMs is 256 bytes.

The new module is fully qualified, and the design kit is now available. It utilizes Agilent Technologies Inc.'s RF Design Environment (RFDE).
X-Fab Semiconductors Foundries AG
www.xfab.com

Silicon Wave Inc. introduced the single-chip UltimateBlue 3000 radio processor, which is implemented on a 0.18-micron CMOS process.

The integrated IC combines a direct conversion radio modem with an ARM7TDMI processor core, Bluetooth baseband logic, and protocol software in ROM, in a 1.8 V device.

The UltimateBlue 3000 is Bluetooth specification version 1.1 compliant and is field upgradeable to the future Bluetooth Specification Version 1.2 via optional flash memory download.

The processor is designed to operate over an extended temperature range of -40° C to +105° C, and incorporates a low out-of-band spurious emission transmitter that prevents blocking of sensitive RF circuits.

Samples of the UltimateBlue 3000 are available now with full production scheduled for the second quarter of 2003. The IC is available in a 6 mm × 6 mm × 0.9 mm BGA-96 ball package.
Silicon Wave Inc.
www.siliconwave.com

MegaPhase LLC announced its new MegaPhase SuperFlex 26.5 GHz test temperature stable cable. The new cable is phase and amplitude stable with temperature stability of less than 7 ppm per °C from -40° C to +125° C. MegaPhase recently added a neoprene jacketing to enhance the flexibility of this cable for ATE applications.

The construction is a stranded silver-plated copper inner conductor, PTFE tape dielectric, GrooveTube outer conductor, metal braid ruggedization, a neoprene outer jacket, finished with heavy-duty strain reliefs. The finished outer diameter measures 0.285 inches (7.24 mm).

The cable's operating temperature range is -70° C to +121° C. The phase and amplitude change versus flexure, measured for a 360° wrap around a 4.75-inch mandrel, is less than 1.8°, and less than 0.02 dB at 5 GHz.

Standard connectors include 2.92 mm, 7 mm, 3.5 mm, SMA, TNC, and Type N — all with MegaPhase Factory Form right angles available.
MegaPhase LLC
www.megaphase.com

B&K Precision Corp. announced the addition of the Model 2650, a handheld, PC compatible 3.3 GHz spectrum analyzer. Weighing only 4.0 pounds, including battery, and measuring 10.2 inches × 6.4 inches × 4.9 inches, this compact portable unit is ideal for use in the evaluation of W-CDMA, CDMA, GSM, PDC, PHS, wireless LAN, 802.11, and Bluetooth systems.

The new analyzer measures frequency range from 50 KHz to 3.3 GHz, includes an auto tuning function, and measures channel power, adjacent channel power, and occupied bandwidth.

It can also measure electric field strength by connecting an optional dipole antenna to the input connector. It measures frequency signals from 50 KHz to 3.3 GHz.

The Model 2650 samples its input at 1,000 points per sweep and can output these points through its RS-232 port to a PC with a maximum transfer rate of 38,400 bps. It is priced at $4,995.
B+K Precision Corp.
www.bkprecision.com

IFR Systems, a wholly owned subsidiary of Aeroflex, announced the IFR 4000, a new navigation communications (NAV-COMM) ramp test set based on a new architecture and ergonomic design.

Replacing the NAV-402AP navigation communications ramp test set, the IFR 4000 is a self-contained, handheld unit designed for ramp testing, but can be also be used for bench test applications.

The IFR 4000 allows measurements of VHF/UHF transmitter frequency, output power, modulation and receiver sensitivity, VHF/UHF antenna and/or feeder standing wave ratio. It can simulate localizer and glideslope signals with variable difference in depth of modulation settings. The instrument has a swept localizer DDM for coupled autopilot testing.

The IFR 4000 weighs eight pounds, and has a battery life of eight hours

It performs functional testing, signal generation and calibration of marker beacon (MKR), VHF omnidirectional radio range (VOR), instrument landing system (ILS) and VHF/UHF communications avionics systems. The instrument offers a new guided test function that allows operators to create custom test sequences.

The IFR 4000 is priced at $11,500.
IFR Systems
www.ifrsys.com

Centurion Wireless Technologies Inc. announced the launch of its Revie line of internal antenna systems to support data and voice applications over 1800 MHz to 1900 MHZ and 800 GHz to 900 GHz.

The Revie's operating bands support data applications in industrial, medical and automotive handheld devices, such as remote monitoring and control, meter reading, tracking, telemetry and security. The Revie antennas require no special tuning or engineering, and can be integrated into the handheld device without optimization, the company says.

According to Centurion, the Revie antennas are ideal for low or high volume applications because they are ground plane independent, which minimizes the engineering resources needed for the design and pre-production phases. Revie antennas are also available with customizable cable and connector options to offer connection to the majority of GSM module offerings. The antennas offer a gain of 1 dBi.
Centurion Wireless Technologies Inc.
www.centurion.com

Sarantel Ltd. announced a surface mount version of its active GeoHelix miniature GPS antenna. The GeoHelix-S can be mounted directly onto GPS circuit boards. The company says it is ideal suited for portable and hand held GPS applications, including use in cellular handsets.

The GeoHelix-S offers a wide beam-width — 3 dB contour up to 120° C, typical. It can operate alongside other antennas without causing interference, an important feature when incorporating GPS capability into mobile handsets.

The GeoHelix-S antenna operates on the GPS L1-band (1575.42 MHz), and measures only 48.5 mm × 14.6 mm × 13.0 mm. It incorporate a 24 dBi low noise amplifier and draw 12 mA from a nominal 3 V dc power supply.

Sarantel will supply the GeoHelix-S in edge-mount and flex-mount formas, as well. The edge-mount versions will have a choice of SMA or MCX male connectors, and the flex-mount versions will have a 100 mm cable terminated in a choice of MCX, MMCX, SMA, SSMT, or Hirose H-FLmale connectors.
Sarantel Ltd.
www.sarantel.com.

Micro Analog Systems Oy introduced a new 80 mA low quiescent current LDO regulator, the MAS9161, which the company says excels in dropout voltage and load transient performance. Due to its quiescent current of only 10.5 µA and dropout voltage of 200 mV, the MAS9161 can be used as a power supply for Bluetooth products.

The MAS9161 is encapsulated to CSP and thin TSOT5 package, and is available in different voltage age versions, such as 2.65 V, 2.8 V and 3.3 V. Samples of the MAS9161 are available and volume production has already started. The price for 1,000 pieces (in TSOT5) is $0.49 each.
Micro Analog Systems Oy
www.mas-oy.com

Linear Technology Corp. introduced the LTC1746, a 14-bit, 25 Msps, analog to digital converter (ADC) designed to conserve power and digitize high frequency signals. It has 77.5 dB SNR and 99 dB SFDR while dissipating only 390 mW. The LTC1746 joins the LTC1745 in Linear Technology's family of ADC products.

The input range on both devices can span ±1 V to ±1.6 V. The LTC1745 and LTC1746 family is available in a 48-pin TSSOP package and screened for both commercial and industrial temperature ranges. Pricing for the LTC1746 starts at $12.75 each in 1,000-piece quantities.
Linear Technology Corp.
www.linear.com

Agere Systems Inc. announced that it will deliver a production-qualified, communications chip using groundbreaking, low-k dielectric 130 nanometer (.13 micron) technology.

Agere's DSP16411 chip is an all-copper semiconductor technology that may significantly accelerate chip speed, reduce power consumption, and lower electronics costs, the company says. Agere's new DSP is based on 130 nm process technology from Taiwan Semiconductor Manufacturing Co. (TSMC). The copper interconnect in the integrated circuit is separated by a thin layer of insulation dielectric film material. Chips produced with lower-k dielectrics are faster than chips with higher-k dielectrics, the company says. The dielectrics with low k-value are typically defined as those with constants below 3.

Agere plans to use the TSMC 130 nm process technology with low-k dielectrics to produce several other types of chips, including applications specific integrated circuits (ASICs), network processors, switching chips, and framers.

Lucent Technologies Inc. is currently using Agere's new digital signal processor (DSP) chip for wireless base stations.

The new chip is priced at $75 in quantities of 10,000.
Agere Systems Inc.
www.agere.com

Vishay Intertechnology Inc. announced the release of two fully integrated FunctionPAK synchronous DC-to-DC boost converters that provide power density of more than 380 W per cubic inch in a 0.58 inch by 0.48 inch (14.7 mm × 12.2 mm) footprint and a low maximum height profile of 0.12 inches (3 mm).

The FX5545G006 and FX5545G106 DC-to-DC converters are designed to stabilize rechargeable battery outputs, shift DC voltage levels, filter noise, and reduce ripple in power supplies for end products including cordless phones, PDAs, portable computers, and low-voltage chip sets.

The products convert input voltages ranging from 2.5 V to 6 V to low-ripple output voltages ranging from 3.3 V to 6 V. Output power and maximum current are 7.5 W and 1.5 A for the FX5545G006 and 10 W and 2 A for the FX5545G106.

The new converters are designed to operate in synchronous rectified pulse-width mode (PWM) under full load while transforming into externally controlled pulse-skipping mode (PSM) under light loads. Power conversion efficiency in standby and idle modes is further enhanced by a low 1 mA shutdown current.

The FX5545G006 and FX5545G106 meet military-level specifications for resistance to shock and moisture and operating temperature range, providing reliable operation over an ambient temperature range of -40° C to +85° C without the need for cooling.

Available in a 20-port BGA construction, samples and production quantities of the new FunctionPAK converters are available now.
Vishay Intertechnology Inc.
www.vishay.com