Microwave Engineering Europe - November 2008 - (Page 37) PRODUCTS 37 GaAs pHEMT MMIC LNAs ideal for broadband, cellular and automotive applications Hittite Microwave Corporation has introduced three new SMT packaged GaAs pHEMT MMIC low noise amplifiers (LNAs) which are ideal for automotive, broadband, cellular/3G, WiMAX/4G and fixed wireless applications from 2.1 to 6 GHz. The HMC715LP3E, HMC716LP3E and HMC717LP3E are GaAs pHEMT MMIC LNAs which are rated from 2.1 to 2.9 GHz, 3.1 to 3.9 GHz, and 4.8 to 6 GHz, respectively. These high linearity LNA MMICs deliver up to 19 dB gain and +33 dBm output IP3, with noise figure as low as 0.9 dB. In addition, the LNAs can operate from either a +3 V or +5 V bias supply, making them ideal for infrastructure and subscriber applications in automotive, Cellular/3G, WiMAX/4G and other broadband wireless transceivers. All three high linearity LNAs share a common pinout and are housed in RoHS compliant 3x3 mm QFN SMT packages. The devices are internally matched for ease of use, and feature an externally adjustable bias current allowing the user to tailor the linearity performance of the LNA for each transceiver application. www.mwee.com/211800409 RF testing out of control? Only Keithley gives you the RF test tools you need to rein in today’s devices and tame tomorrow’s challenges. Broadband quadrature modulator claims to be first to integrate AGC Analog Devices claims an industry first by integrating automatic gain control (AGC) circuitry into its highperformance broadband I/Q quadrature modulator, all within a compact 6-mm x 6-mm LFCSP (lead-frame chipscale package). The ADL5386 provides a combination of performance and integration for low IF (intermediate frequency) and RF transmitters within broadband wireless access systems, microwave radio links, cable modem termination systems and cellular infrastructure equipment. Operating over 50-MHz to 2200-MHz, the ADL5386 supports high-data-rate complex modulation for next-generation communication infrastructure equipment. Functionally complete, the modulator integrates a 25-dB dynamic range output power detector and a VVA (voltage variable attenuator). Together, they form a closed-loop automatic level control (ALC) or AGC, enabling the modulator to accurately set the output power to a user determined level. The device provides a complete subsystem within a small footprint, saving considerable board space, component cost, and circuit complexity over discrete implementations. The modulator provides exceptional output dynamic range due to its high output power capability (+10 dBm P1dB), high single-ended output linearity (+24 dBm IP3), and low noise floor (-160 dBm/ Hz). The -38 dBm carrier feedthrough and -46 dBc sideband suppression at 350 MHz minimizes calibration and nulling in complex highorder modulation applications. www.mwee.com/211800412 MODEL 2920 RF SIGNAL GENERATOR MODEL 2820 RF SIGNAL ANALYZER ■ Test the most complex signal structures, including 802.11n WLAN MIMO and 802.16e Wave 2 WiMAX. Configure a 4x4 MIMO test system costeffectively. Generate and analyze signals up to 6 GHz repeatybly and accurately with our instruments’ software-defined radio architecture. Reduce your time to market and cost of test with MIMO systems optimized for R&D and production test. ■ ■ ■ Go to www.keithley.com/tame and try a demo. www.keithley.com/contact info@keithley.de Microwave Engineering ● November 2008 ● www.mwee.com http://www.mwee.com/211800409 http://www.keithley.com/tame http://www.keithley.com/tame http://www.keithley.com/contact http://www.mwee.com/211800412 http://www.mwee.com
For optimal viewing of this digital publication, please enable JavaScript and then refresh the page. If you would like to try to load the digital publication without using Flash Player detection, please click here.