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 products Sep 1, 2002 12:00 PM High-efficiency GSM/GPRS power amplifier
Raytheon has introduced RMPA1958-99, a high efficiency power amplifier module for GSM/GPRS quad-band applications. The module, which has an overall frequency range of 824 to 1910 MHz, uses InGaP MMIC technology with a CMOS control circuit in an integrated design, affording greater flexibility and user convenience. Features include internal 50Ω input and output matching with internal DC-blocking, and a leadless chip-carrier module with on-board band select and output power control, reducing handset design complexity and minimizing loss. The device operates at a supply voltage of 3.5 VDC and delivers an output power of 35 dBm for GSM applications and, 32.5 and 31.5 dBm, respectively, for DCS and PCS. Its power-added efficiency is 55% for US cell/GSM and 50% for DCS/PCS. The full range of output power control is set with a variable power control voltage of 1.9 VDC max, and the total leakage current at shutoff is in the uA range. The InGaP GaAs HBT-process offers an inherently lower temperature sensitivity, easier manufacturability and higher reliability. The unit is packaged in an 11.6 × 9.1 × 1.6 mm leadless chip-carrier (LCC) module to maximize available handset board. MILITARY/SPACE
Phase matched military multiplexer
K&L Microwave has unveiled a low-profile multiplexer with an ultra wide usable passband from 500 MHz to 2000 MHz. Units can be purchased as stand-alone units, matched pairs or matched sets with a maximum of six units per set. Sets can be phase matched to within ±15° across the entire passband. Units are designed to withstand stringent military requirements and are fully spec compliant over the operating temperature range of -55° to +55°C. This device features a 6061 aluminum housing that is laser welded to meet hermeticity specifications in addition to various environmental conditions of MIL-STD-202. Digitally tuned oscillator product line
Signal Technology has released a line of digitally tuned oscillators (DTO) developed primarily for military digital receiver front ends for radar applications and for electronic warfare (EW) simulator markets. These components are designed for applications that require speed, broadband jamming, and fast frequency hopping. The DTO design incorporates a custom integrated assembly architecture using a dual source approach with hybrid and monolithic multi function microwave and control component circuitry. This achieves the broadband tuning and stability required. The dual source approach allows for lower operating power consumption, improved reliability and smaller package size. Designs with continuous frequency coverage from 2 to 18 GHz with 2 to 6 GHz, 2 to 9 GHz, and 6 to 18 GHz options covering full military temperature ranges are currently available. SIGNAL SOURCES
Tiny IC for cellular phone VCXO modules
MAS has launched the MAS9278, a miniature IC less than 1.5 mm AMPLIFIERS
Feature-improved 2.4 GHz ISM band amplifier
Ophir Dual 400MHz, 2500V/µs voltage feedback Amp
Linear Technology has released the LT1819 is a dual, high-speed (gain bandwidth product = 400MHz, slew rate = 2500V/µs), unity gain stable, voltage feedback op amp with low total harmonic distortion of -85dB at f = 5MHz and V Compact 8 W class A amplifier
Stealth Microwave has released the SM0822-39, a compact class A amplifier operating from 800 to 2200 MHz. Output power, at P1dB, is +39 dBm (min.) with a +53 dBm (min.) OIP3. Linear gain is 45 dB with 1.5 dB peak to peak flatness. Supply voltage is +12 VDC @ 3.5 Amps. Features include mismatch protection, temperature compensation, over/reverse voltage protection, thermal protection with auto reset, and logic on/off control. Forward Power Detection is also available. Linear PAmodule for CDMA 3G handset applications
Celeritek has debuted a new 4mm square, linear, power amplifier module designed for transmit functions in CDMA2000 cellular multimode, data-enabled handset applications. The model CHP0205-QM operates from 824 to 849 MHz and offers 36% linear power added efficiency, +28 dBm output power, lower RF power efficiency enhancement, 50Ω internal matching and on-board DC power down mode. The device is packaged in a 4mm × 4mm × 1.5mm power module. WJ expands the AG series low-cost gain blocks
WJ Communications offers five new AG Series low-cost gain block amplifier models. The AG201, AG202, AG203, AG503, and AG604 are the next installment in a broad family of general-purpose buffer amplifiers. They are designed to provide broadband gain at frequencies from DC to 3 GHz. The family covers 11 performance combinations spanning 10 to 20 dB gain, +6 to +19 dBm P1dB, and +20 to +34 dBm OIP3. While targeted at telecommunications infrastructure and CATV markets, the series will work for other applications within the DC to 3 GHz operating range. They can be directly applied to various current and next generation wireless technologies such as GSM, CDMA, W-CDMA, UMTS and GPRS. Unit prices for the AG Series models purchased in 10,000 piece order quantities are less than $1 each. TEST AND MEASUREMENT
Wireless Internet protocol test solution
Anritsu Company has introduced the cdma2000 1×RTT wireless Internet protocol (IP) test solution designed specifically to help wireless Internet application developers create, troubleshoot, and verify application designs. By using the wireless IP test solution, engineers can accelerate the development cycle. The test set model number MX880121A-02, is a software option to the 1×RTT version of Anritsu's MT8801C radio communication analyzer. A variety of functions can be performed using Anritsu's cdma2000 1×RTT wireless IP solution. Typical applications include mobile device application software evaluation, wireless web development and high-speed data products such as wireless modems or associated application software evaluation The MX880121A-02 is a $5,000 software option to the MT8801C Radio Communication Analyzer equipped with cdma2000(tm) 1×RTT hardware and software. The 1×RTT Wireless IP test system is available for less than $45,000 Digital broadband T&M ISM Workstation
Celerity Systems has introduced the CS20310C ISM Workstation. The system features 100 MHz of real-time bandwidth and 4 GB of memory. It can monitor and record up to 16 seconds (or 25,600 hops) of all signals within the 2.4 GHz ISM band, including BluetoothTM, 802.11b, 802.11g, and HomeRF signals. The system's high-performance, 300 Ms/s ADC captures all signals in real-time to preserve complete time, frequency, modulation and transient information while delivering 55 dB SFDR. The workstation uses the Windows NT OS, a high-speed Pentium processor, GPIB and 10/100baseT Ethernet to deliver an open workstation environment. The system can be operated manually, automatically, remotely or networked, and is easily upgraded for wider bandwidths, additional memory, and other frequency bands. SEMICONDUCTORS/ICs
Versatile LDMOS FET amp for communications
California Eastern Laboratories has added another silicon LDMOS FET to its family of NEC low-cost, medium -power devices. Useable from UHF to 2.5 GHz, the NE552R479A is designed as a transmitter output stage for cell phones, two-way radios, wireless LAN, and fixed wireless transceivers. Designed to accommodate battery voltages from 3 to 8 VDC, it's useable in a wide variety of handset and portable applications — plus it does not require a negative supply voltage. It features high output power, high linear gain, and high power-added efficiency in a low-cost plastic, surface-mount package. The design of its miniature 5.7 × 5.7 × 0.9 mm surface mount package results in a low 10° C/W (max) thermal resistance figure. It is priced at $2.00 in 10K piece quantities. Multifunction self-aligned high density MMICs
M/A-COM, has announced a family of X-Band MMICs. Two are MMIC low-noise amplifiers covering the 8.5 GHz to 12 GHz frequency range and incorporating on-chip limiters capable of 10 W CW power handling. Two other MMICs offer an integrated 6-bit phase shifter, 5-bit attenuator, buffer amplifier, and on-chip TTL-compatible control logic. All products are fabricated with M/A-COM's Multifunction Self-Aligned Gate (MSAG) GaAs MMIC process. MSAG enables the development of high-performance and low-cost standard products that integrate both microwave and digital circuit functions on high-density die. Contact the factory for volume pricing. Sample availability is from stock. Specifications at a glance:
High-frequency PWM power supply controller
Microsemi has announced a new highly integrated high-frequency power supply controller combining a synchronous PWM switching regulator with an adjustable linear regulator driver. Designated the LX1673, the DC/DC controller is designed to reduce circuit component costs in video card power supplies, double data rate (DDR) memory termination, computer peripherals, computer add-on cards, low voltage applications, and 3.3 VDC power conversion applications. The device features two independently regulated outputs as low as 0.8 VDC from an internal 1% reference. The PWM output is capable of sourcing up to 15 A, while the adjustable low dropout regulator can simultaneously supply up to 5 A for input/output, memory and other supplies surrounding microprocessor designs. It is available for immediate sampling and delivery in a space-saving 20-pin MLP (Jedec MO-229) surface-mount power package, with >10K quantity pricing at $0.99. TX/RX
Combination antenna for 802.11a, b, BTand U-NII
Centurion has enhanced its Bluechip antenna so it simultaneously supports all three frequency bands of 802.11(a) as well as Bluetooth, 802.11(b), HyperLan and Unlicensed Network Information Infrastructure (U-NII) broadband applications. The new antenna can be used to access 802.11 (a) and 802.11 (b) networks in North America, Europe and Asia that use different bands within the 2 GHz and 5 GHz ISM bands. The internal antenna offers high-gain 2.0 dBi, and wide bandwidth in a package the size of an eraser tip. The antenna is intended for PCB surface-mounting that can be adjusted to both vertical and horizontal positions without compromising performance. The antenna is available in tape and reel packaging. Miniature FBAR duplexers for handsets and PDAs
Agilent has released a new film bulk acoustic resonator (FBAR) family that allows designers to create ultra-slim cell phones and data cards for PDAs. These duplexers measure 5.6 × 11.9 × 2 mm and are targeted at PCS handset and data card applications operating in the 1900 MHz frequency band. The HPMD-7904 and HPMD-7905 FBAR duplexers enhance the sensitivity and dynamic range of CDMA receivers. They also provide high transmit and receive isolation, offering high sensitivity and excellent desense immunity and low insertion loss. The HPMD-7904 is priced at $3.80 each, while the HPMD-7905 is $3.30 each, in quantities of one million. Lightweight and low-cost directional antenna
Pacific Wireless has introduced a directional antenna system operating in the 2.4 GHz frequency range for wireless Internet service providers including customer premises equipment (CPE), wireless bridges and point-to-point wireless links. With operating frequencies of 1700 to 2700 MHz available, additional usage of the antenna system includes transmit and receive applications such as wireless local loop (WLL), point-to-point repeaters, point-to-point receive sites, streaming video and MMDS applications. The Model PAWDCA-24 features 24 dBi gain, 8 degrees of beam width, greater than 24 dB front-to-back ratio, is 42 × 24 inches (including dipole) and weighs 5.5 lbs. Additional specifications include: input return loss of -12 dB; operating temperature of -45 to +70°C; and Pacific Wireless' adjustable tilt attaching hardware for mounting on the customer's pole. Quantities of 1 to 9 are priced at $82 and $57 per unit in 100 piece quantities, and are available from stock. POWER
New battery for telecomm Industry
AVESTOR has announced that it is ready to commercially produce its first-generation lithium-metal-polymer battery, the SE 48S70, specifically designed for the telecommunications industry. The SE 48S70 battery provides superior performance in ambient temperatures ranging from -40 to +65° C using just one-third the space and with one-fifth the weight of traditional valve-regulated lead-acid (VRLA) batteries. The SE 48S70 battery has an expected service life of about 10 years — even under extreme environmental conditions. INTERCONNECT/INTERFACE
1.0/2.3 family offers SMT compatibility
Compel Electronics is pleased to announce the availability of its 1.0/2.3 SMT-compatible multi-interface connector series. This SMT design facilitates PCB assembly and also accommodates tight packaging density. These new connectors are available with 2-, 3-and 4-coax interface combinations in the same housing. Frequency coverage is from DC to 2 GHz in standard 75Ω impedance value and DC to 10 GHz in optional 50Ω impedance. Custom variants are available upon request. Standard housings are cast from a light weight alloy, and a liquid crystal polymer housing is also available in the 4-coax version. Units are available in tape and reel packaging. 90° 75Ω BNC bulkhead jack
Trompeter has introduced the UCBBJR29, a new PCB-mounted right- angle bulkhead BNC jack. This jack is designed for true 75Ω performance and carrier class applications. The jack is applicable to OEM equipment applications that involve high data rates, high bandwidths and/or high frequencies, with low return loss. The bulkhead feature allows torque of the BNC coupling mechanism to be transferred to a panel front in lieu of the board, ensuring the integrity of the board to connection junction. The BNC series is capable of 4 GHz of upside frequency in current designs. Pricing is $11.25 each in 5,000 pc quantities. DC block affords voltage protection To 18 GHz
Mini-Circuits BLK-18 coaxial DC block blocks DC in the extremely broad 10 MHz to 18 GHz frequency range. These coaxial DC blocks provide low insertion loss (less than 1 dB up to 18 GHz) and excellent return loss (24 dB typ). The units come with SMA (F) to SMA (M) connectors, measure a small 1.18" in length, and uses Mini-Circuits patent pending unibody construction for rugged applications within the wide -55°C to +100°C temperature range. They are priced from $21.95 ea. (Qty. 1-9). DIGITAL HARDWARE/SOFTWARE
Power savings in high-performance data converter
Analog Devices debuts an advanced CMOS data converter that provides performance typical of bipolar-process converters while achieving 55% lower power consumption than comparable converters. The AD9244 analog-to-digital converter (ADC) provides 14-bits of accuracy at a speed of 65 million samples per second (Ms/s) while consuming only 590 mW of power. It offers cost-effective IF sampling system architectures in wireless base stations by supporting frequencies as high as 200 MHz. Its low power consumption makes it well suited to pico-cell and micro-cell designs with multiple base stations on one tower or location. It uses a multi-stage differential pipelined architecture with output error correction logic to provide 75 dB SNR, 90 dB SFDR and 14-bit accuracy at 65 Ms/s. The AD9244 is available in a 48-pin LFQP package. The 40-/65-Ms/s versions are priced at $20/$29 per unit in 1,000-piece quantities. Dual-core processor offers real-time DSP performance
Texas Instruments has unveiled the dual-core OMAP5910 embedded processor. It combines, in a single device, the real-time processing capabilities and low power consumption of the TMS320C55x DSP core, the flexibility and scalability of a TI-enhanced ARM925 microprocessor. The device is the newest addition to the family of OMAP processors, which has garnered strong momentum in the 2.5G/3G handset and PDA markets. The single chip delivers system-on-a-chip functionality with peripherals including: 192 KB of RAM, USB 1.1 host and client, MMC/SD card interface, multi channel buffered serial ports, real-time clock, GPIO and UARTs, LCD interface, SPI, μWire and i FPGA delivers new FFT with tenfold speed advantage
Pentek has released GateFlow, a family of extendible FPGA products that features a streamlined FFT implemented on its FPGA-based dual-channel wideband receiver and the GateFlow FPGA design kit to facilitate custom algorithm development. Available as a factory-installed option to the Pentek Model 6235 dual channel, 12-bit, 100 MHz Wideband digital receiver, the gateflow FPGA FFT engine offers a powerful front end for many signal processing systems. It includes two complete acquisition and receiver channels in a VIM-2 (velocity interface mezzanine) module compatible with Pentek's 429x series PowerPC and C6000 VME processor boards. With two 100 MHz A/Ds on the model 6235, the GateFlow FFT can handle both A/Ds with 50 percent input overlap processing and zero data loss. The execution speed for the 1k-point complex FFT is 2.56 msec, also four times faster than real-time at 100 MHz. The model 6235 dual channel receiver with 1k gateflow FFT starts at $11,995. The Model 6235 with 4k GateFlow FFT starts at $12,995. EMBEDDED SYSTEMS
Probe for the StarCore-based MSC8102 DSP
Green Hills Software has announced the availability of its MULTI 2000 Integrated Development Environment and high-speed Green Hills Probe for the StarCore-based MSC8102 digital signal processor, Motorola's highest performance DSP. The new IDE, featuring C and C++ optimizing compilers and a multi core debugger, provides a DSP-optimized superset of MULTI's powerful editing, debugging, profiling, and project management capabilities. The MSC8102 combines four StarCore SC140 cores running at speeds of 300 MHz with four enhanced filter coprocessors (EFCOPs), delivering a peak performance of six billion multiply accumulates per second (MMACs). This performance level, coupled with the MSC8102's large on-chip memory (1436 KB), four high-speed TDM interfaces, 16-channel DMA, and high performance system and peripheral bus interface, make it applicable to a wide range of compute-intensive telecommunications applications. MULTI pricing for Windows and Linux hosts starts at $5,900 (US). MULTI for Solaris, and HP-UX starts at $9,900 (US). Low-power, single-board computer for embedded control
Z·World's low-power single-board computer, the LP3500 Fox, is designed to operate in power limited devices such as portable, hand-held, battery-powered, and remote monitoring systems. Featuring built-in analog and digital I/O, it consumes less than 20 mA when fully operational and less than 100 µA in power-save mode. It incorporates the low-EMI Rabbit 3000 microprocessor, up to 512K each of Flash and SRAM, 26 industrialized digital I/O, A/D converter inputs and PWM outputs, six serial ports, one relay, and two dedicated function ports for easy connection to serial Flash cards, keypad/display and other devices. The Fox runs at up to 7.4 MHz at a variety of power levels under software control, thereby accommodating a wide range of operating conditions. The board is equipped with 0.1" connectors, and users can supply their own cables or plug the SBC directly into sockets on their motherboard. It can be used for remote telemetry (RTUs), pipeline monitoring, GPS/asset tracking, handheld wireless devices, remote data acquisition, electrical transmission line monitoring, and other applications that require low power control. An optional 3.3 V keypad/display module is available. LP3500 models are are priced from $149 (qty. 1) to $122 (qty. 100). Connectivity for low-power devices
CMX Systems and Cyan Technology, have launched the CMX-MicroNet TCP/IP stack on the eCOG1 16-bit engine. The Cyan-CMX solution sharply reduces the cost of networking devices and Internet connectivity. To facilitate customer support, Designed for the low-power, real-time communications needs of developers, Cyan Technology offers a 16-bit flash microcontroller capable of running code at less than 10 m and 25 MIPS execution speed. The CMX-MicroNet is a small footprint TCP/IP software stack, developed to provide networking and Internet connectivity for the most stringent real-time communication demands that the 8- and 16-bit designer faces. With the CMX-MicroNet stack and a rich assortment of communication peripherals, serial interfaces and timers, eCOG1 makes an ideal communications engine for Internet-enabled devices, hand-held instrumentation, intelligent sensors, and PDA peripherals. The CMX-MicroNet TCP/IP stack is available directly from Cyan Technology starting at $5,500. eCOG1 sells for $10 per 10,000. The comprehensive eCOG1 Development Kit offers an eCOG1 development board priced at $299 and a free set of software development tools that includes an assembler, verified ANSI-C compiler, software simulator and in-circuit emulator/debugger. SOC system controller optimized for MIPS cores
MIPS Technologies has developed a new system controller family that enables SOC designers to increase overall system performance and accelerate SOC development. SOC-it system controllers increase system performance by means of an integrated memory controller and multiple, high-bandwidth IP interfaces. The memory controller is optimized for, and closely coupled with, the MIPS core in the SOC. Three dual-port IP interfaces offer high-bandwidth and point-to-point switched bus interconnects for the RAM. IP blocks. SOC-it controllers are synthesizable and available in five upgradable configurations MEMS
Switch family for rapid mems integration
Coventor has unveiled its MEMS switch development platform. MEMS switch technology enables design engineers to create new wireless products featuring low insertion loss and high isolation capabilities in a smaller package. It fosters fast design and prototyping capabilities necessary to bring handset and microwave communications systems to market quickly. The MEMS switches can be customized and integrated with passive and active components on ICs for RF mixed-signal functions. The family is designed to operate from DC to 40 GHz with a low insertion loss of <0.2 dB for die and <0.4 dB for packaged devices and high isolation of >25dB at 40GHz and >40dB at 2GHz. SUBSYSTEMS
Highly integrated CDMA front end receiver shipping
RF Micro Devices has announced the production availability of the RF2870 front end receiver. The RF2870 is a low-cost, highly integrated single-band front-end solution that features an integrated transmit (TX) local oscillator (LO) buffer amplifier. The device is assembled in a reduced-size 3 mm x 3 mm footprint package and is designed to optimize board space in applications using code division multiple access (CDMA), CDMA IS-95, JCDMA, cdma2000 1x and cdma2000 1x-EVDO standards. 105 MHz ADC PMC module for demanding software radio applications
Interactive Circuits and Systems has announced the ICS-554 ADC PMC board. Designed for high-performance software radio applications, it pushes the envelope in channel density, speed and performance. The device includes four 14-bit ADCs. Each supports a sample rate of up to 105 MHz and boasts an SNR of greater than 74 dB and an SFDR of close to 100 dB. Each ADC is followed by a quad GC4016 programmable tuner device that supports both wideband and narrowband signal down conversion. A switch network in front of the tuners allows any or all of the 16 tuners to be assigned to any ADC output. An on-board Xilinx XC2V1000 FPGA following the tuner can be programmed for processing base band signals. The ICS-554 also includes a 512K sample on-board buffer and a powerful 66 MHz, 64-bit PCI DMA interface. The device puts 16 FDM receivers into a single width PMC card. With its ability to simultaneously process 4 antenna inputs, it is also ideal for spatial processing. A key feature of the system is its ability to undersample VHF signals without any degradation of performance. It also allows multiple-board synchronization for higher channel count. The ICS-554 is offered in one, two or four channel versions with or without the tuner modules. The prices begin at $3,995 in single quantity for the 80 MHz grade part. PASSIVES
Low cost miniature inductors
BI Technologies Magnetic Components Division introduced a new series of SMT inductors featuring a class H design for operation at elevated ambient temperature. Designated the HM61 series, these low-profile form factor inductors feature low DC resistance and high current handling capabilities while offering a wide inductance range from 1 to 2700 mH. Specially designed for machine placement, the series is compatible with vapor phase and infrared reflow soldering. In addition to providing a wide inductance range and current handling capability as many as 4 amps continuous, this class H design offers a specialized insulation system that designed for a range of demanding applications. The series allows design engineers to incorporate a compact high-current inductor into circuits where temperature and current capacity are critical design criteria. They are suitable for use in radio interference suppression, decoupling in RF and IF circuits and in DC-DC converters. They can also be used in safety devices as well as other applications. The inductors offer inductance ratings from 1 mH to 2700 mH (inductance measured at 1.0 kHz, 0.1V) at up to 4 amps continuous with operating frequencies up to 2MHz. DC resistance ratings range from 0.015 W to 10.5 W with operating temperatures ranging from -40°C to 180°C. The family comes in two footprints (4 × 4.8mm and 8 × 8.5 mm). Typical pricing for the HM61 Series inductors are $0.49 each in quantities of 50,000 New capacitors for emi filtering
Johanson Dielectrics has introduced a new ceramic filter/decoupling capacitor using X2Y technology. The design incorporates common shielding electrodes that form a Faraday cage around the standard capacitor. The addition of the common electrode creates two matched or balanced capacitors enabling simultaneous line-to-line and line-to-ground filtering. The matched capacitor design also eliminates temperature, voltage and aging differences. This new component virtually eliminates parasitic inductance and provides superior filter and decoupling performance, allowing multiple component replacement and space savings on the PC board. Available in chip sizes 0603 through 1812 and 1410. Price: $0.50 at 1,000 pieces. SMT power iductors
Coilcraft debutes the SPT series of high current handling in a low-profile surface-mount part. The self-leaded design ensures rugged reliability and the toroid winding virtually eliminates stray electromagnetic emissions. There are two versions: the standard series with current ratings up to 8 amps, and the high current series that can handle up to 13.9 amps. All are rated for operation from -40° to +130°C and the materials meet UL 94V-0 rating. In addition to the standard values shown, Coilcraft can custom engineer parts for specific applications.
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