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December 2010 [Communications] ISM-Band Transceiver Boasts 600-kb/s Bit Rate TO HELP ENGINEERS provide advanced monitoring and control of home and industrial energy, security, and data-measurement systems, the SX1233 transceiver combines a 600-kb/s bit rate with a 137-dB link budget. The transceiver platform covers 290 to 1020 MHz. With blocking immunity of 80 dB, the SX1233 offers front-end protection from both in-band and out-of-band interference. It flaunts receive sensitivity to -120 dBm at 1.2 kb/s with ... — Nancy Friedrich December 2010 [Components] Diode Switches Cover 50 MHz To 20 GHz THE HETEROLITHIC MICROWAVE integrated circuit (HMIC) broadband diode switches operate to 26 GHz with continuous-wave (CW) power handling to +38 dBm. For example, the MASW-002103-1363 single-pole, doublethrow (SPDT) switch exhibits 0.4 dB of insertion loss at 6 GHz with 43 dB isolation. At 20 GHz, it offers 0.7 dB insertion loss with 22 dB isolation. The family’s single-pole, four-throw (SP4T) member, dubbed the MASW-004103-1365, exhibits 0.5 dB insertion loss and 35... — Nancy Friedrich December 2010 [Components] Battery-Powered Amplifier Spans 1 To 20 GHz ENGINEERS WHO EITHER do not have or do not want additional power input cables within their test environments will welcome the BOX-010200 self-contained, battery-powered amplifier. It provides gain of 25 dB from 1 to 20 GHz with typical output power of +13 dBm at 1-dB compression. The amplifier’s noise figure ranges from 3 to 5 dB. The microwave-integrated-circuit (MIC) design utilizes galliumarsenide (GaAs), pseudomorphic-high-electron-mobility-transistor (PHEMT),... — Nancy Friedrich December 2010 [Components] CMOS Oscillator Provides Sub-1 00-ppm Frequency Error USING PATENTED TECHNOLOGY, a new CMOS oscillator promises to replace quartz-crystal-based oscillators with a monolithic CMOS integrated circuit (IC) at frequency accuracy of 100 ppm and better. The IDT3C02 oscillator utilizes a programmable architecture and supports various configuration options to suit a range of applications. For example, frequency of operation is programmed by the factory. The IDT3C02 is designed with an analog core, which typically consumes less... — Nancy Friedrich November 2010 [Systems & Subsystems] Plug-And-Play Modules Span 433 To 2483 MHz FOR ELECTRONIC ENGINEERS who lack RF expertise but are challenged with adding lowpower wireless capability to new or existing devices, the Anaren Integrated Radio (AIR) modules vow to provide a plug-and-play solution. By leveraging Texas Instruments’ semiconductor technology, the AIR module family promises to deliver easy integration and implementation on an existing or newly designed two-layer printed-circuit board (PCB). The A1101R04C, which spans 433.0 to 434.4 MHz, is an... — Nancy Friedrich November 2010 [Components] Gain Block/Driver Amplifier Covers DC To 10 GHz A SURFACE-MOUNT-TECHNOLOGY (SMT), pHEMT, monolithic-microwave-integrated- circuit (MMIC) driver amplifier serves high-linearity applications from DC to 10 GHz. The HMC788LP2E gallium-arsenide (GaAs), internally matched, Darlington gain-block amplifier delivers gain to 14 dB. It provides +20 dBm output power at 1-dB compression and an output third-order intercept point to +30 dBm. Thanks to an active on-chip bias circuit, the amplifier consumes just 76 mA... — Nancy Friedrich October 2010 [Test & Measurement] System Combines Broadband RF Source And Analyzer BY COMBINING A SIGNAL GENERATOR and analyzer, the CS9000 Broadband Signal System (BSS) vows to replace an entire bench of equipment— including spectrum analyzers, oscilloscopes, power meters, and logic analyzers. The system can analyze a maximum of 500,000 bursts per second. For example, it can analyze communications and radar signals with instantaneous RF bandwidths of 72 and 472 MHz and hop rates to 500,000 hops per second. It comes in standard RF configurations to 6... — Nancy Friedrich October 2010 [Components] Transistor Offers 1 20 W DVB-T Output Power MODEL BLF888A is a rugged LDMOS transistor that features generous output power with high efficiency. Rated for peak output power of 600 W, the ultra-highfrequency (UHF) RF power transistor can deliver 120 W average power with greater than 31-percent efficiency from 470 to 860 MHz when driving digital-videobroadcast transmit (DVB-T) signals. It provides high gain of 21 dB and ruggedness equivalent to operating into VSWRs greater than 40.0:1. Such... — Nancy Friedrich October 2010 [Components] I/Q Modulator Covers 200 MHz To 6 GHz IN ADDITION TO SPANNING an impressive 200 MHz to 6 GHz, the LTC5588-1 ultrahigh- linearity, direct-conversion, in-phase/quadrature (I/Q) modulator provides an output third-order intercept point of +30.9 dBm at 2.14 GHz—without calibration. The device also offers simple calibration by a single-pin adjustment with a DC input voltage. This feature further optimizes its output third-order intercept point to +35.1 dBm. The LTC5588-1 boasts a noise floor of -160.6 dBm/Hz at... — Nancy Friedrich October 2010 [Components] 2.4-GHz Switch Selects Wireless Functions BOASTING A TRIPLE-THROW DESIGN, the new 2413 switches can support Wi-Fi and Bluetooth devices from 0.5 to 3.0 GHz—even in the same module. The RF switches also can serve ZigBee/IEEE 802.15.4 products. The single-pole triple-throw (SP3T) RF antenna switches, dubbed the uPG2413T6M and the uPG2413T6Z, exhibit 0.35 dB of insertion loss at 1 GHz and 0.50 dB at 2.5 GHz. They offer 26 and 18 dB isolation, respectively, at 1 and 2.5 GHz. The switches handle +28 dBm power at 0.1-dB... — Nancy Friedrich September 2010 [Communications] FSK Transceiver Targets 27-MHz Band By operating in the unlicensed 27-MHz band, the AS3900 frequency-shift-keying (FSK) transceiver avoids the interference found in the popular 2.4-GHz band. As a result, less energy is absorbed by the human body by measure of the specific absorption rate (SAR). The transceiver consumes 2.5 µA current in polling mode and typically 3.8 and 4.9 mA in the receive and transmit modes, respectively. The AS3900 transmits data to 212 kb/s. While an RF antenna typically is sized... — Nancy Friedrich September 2010 [Components] Ka-Band LNA Surpasses 40 dB Gain A FAMILY OF COAXIAL LOW-NOISE AMPLIFIERS (LNAs) covering the 18-to-22-GHz band includes a new member with over 40 dB of gain. The model AMF-5F-18002200-17-10P offers gain flatness to ±1.5 dB with typical flatness of ±0.75 dB. It provides a noise figure to 1.7 dB in the full band with typical noise of 1.5 dB. This LNA boasts +10 dBm output power at 1-dB compression with typical third-order intercept performance of +20 dBm. It draws a maximum of 180 mA from a single... — Nancy Friedrich September 2010 [Components] RMS Power Detector Boasts 40-dB Dynamic Range TASKED WITH INCREASING WIRELESS COVERAGE and extending battery life for third- (3G) and fourth-generation (4G) mobile handsets, a linear root-mean-square (RMS) RF power detector supports frequencies of 50 MHz to 6 GHz with an RF power-detection range of –35 to +5 dBm. The PowerWise LMH2120 vows to enable accurate RF poweramplifier (PA) measurements. It provides stable performance from –40°C to +85°C with amplitude-versus-temperature variations of just ±0.5 dB over a... — Nancy Friedrich September 2010 [Test & Measurement] X-Band Signal Generator Switches In 100 ms A NEW X-BAND SIGNAL GENERATOR dubbed the LMS-123 operates from 8 to 12 GHz while switching in 100 ms. It provides 100-Hz frequency resolution. The LMS series also offers phasecontinuous linear frequency sweeping, optional modulation formats, and internal/external triggering. Like other products in the Lab Brick signal-generator line, the LMS-123 measures 4.90 x 3.14 x 1.59 in. (124 x 80 x 40 mm) and weighs less than 1 lb. (0.45 kg). It connects to a... — Nancy Friedrich August 2010 [Components] Voltage-Variable Attenuator Covers 250 To 4000 MHz DESIGNED AS A GENERAL-PURPOSE block for wireless-infrastructure applications, a new voltage-variable attenuator (VVA) delivers 44 dB of linearly controlled dynamic range from 250 to 4000 MHz. Dubbed the MAX19790, it actually comprises two VVAs integrated in one monolithic integrated circuit (IC). By leveraging a proprietary, silicongermanium (SiGe) BiCMOS process, each attenuator incorporates a patented control circuit to provide a 22-dB attenuation range... — Nancy Friedrich August 2010 [Components] 10-MHz OCXO Increases Test-System Stability TEST-EQUIPMENT PERFORMANCE is typically curtailed by phase noise. To improve the measurement capabilities of phase-noise test sets, signal generators, and spectrum analyzers, the 10-MHz OX-045 oven-controlled crystal oscillator (OCXO) promises to lower close-in phase noise by 10 dB. The OCXO flaunts typical phase noise of –142 dBc/Hz with worstcase performance of –140 dBc/ Hz at an offset of 10 Hz. With an offset of 100 kHz, it boasts typical ... — Nancy Friedrich August 2010 [Devices & ICs] Front-End Module Serves 900-MHz ISM Band WITH ADVANCED METERING INFRASTRUCTURE (AMI) and other applications in the Industrial, Scientific, and Medical (ISM) band gaining in popularity, the RF3858 front-end module is a promising solution for portable equipment in need of size reduction. It also reduces the number of components outside of the core chipset. The RF3858 contains a power amplifier (PA) transmit/receive (Tx/Rx) transfer switch, low-noise amplifier (LNA) with bypass mode, and matching components. That LNA... — Nancy Friedrich August 2010 [Computer-Aided Engineering] Software Supports Nonlinear Behavioral Modeling WITH THE RELEASE OF the 2010 Microwave Office (MWO) design suite, engineers are promised new functionality and tools to increase productivity in the design of high-frequency monolithic microwave integrated circuits (MMICs), microwave integrated circuits (MICs), RF printed-circuit boards (PCBs), and modules. The release supports nonlinear behavioral modeling via Agilent’s X-parameters, Mesuro’s Cardiff model, and more. In addition, it delivers improved speed in ... — Nancy Friedrich July 2010 [Components] RMS Detector Provides 57-dB Dynamic Range To 10 GHz A 10-GHz RMS detector offers ±0.2-dB linearity over a 43-dB dynamic range at 2.14 GHz—even for signals with high-crest-factor modulation used in 3G and 4G broadband wireless networks. Dubbed the LTC5582, it vows to accurately measure signal levels as low as -56 dBm to +1 dBm to ±1 dB error. The RMS detector provides a 57-dB dynamic range from 450 MHz to 2.7 GHz. The device offers 46 dB of useful dynamic range at 6 GHz and 38 dB at 10 GHz. From... — Nancy Friedrich July 2010 [Components] Limiter Handles 10 W CW From 2 To 6 GHz To keep the RF input signals experienced by low-noise amplifiers (LNAs) and receiver frontend components to safe levels, a new limiter is designed to attenuate signals above a specific threshold. Dubbed model ACLM-4805FM15, this microwave limiter covers 2 to 6 GHz. It is rated to handle continuous-wave (CW) signal levels of 10 W and peak levels of 1 kW (1 µs pulse width, 0.1 percent duty cycle) over a temperature range of -55° to +85°C or 20 W CW and 1 kW peak at ... — Nancy Friedrich  prev. page
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