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What is a power amplifier?
Designated as the last amplifier in a transmission chain, a power amp typically requires the most attention to power efficiency.
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2008-06-02 Highly efficient power MOSFETs serve handheld wireless equipment
From Renesas Technology Corp. comes the RQA0010 and RQA0014 high-frequency power MOSFETs that the company claims achieve the industry's highest efficiency class and the high reliability of ESD immunity level 4
2013-08-02 High-voltage power amplifier for dielectric applications
Trek's Model 20/20C-HS high-speed, high-voltage amplifier provides high speed of response with slew rate greater than 800V/us and output current to 60mA peak AC
2008-08-25 High-power WiMAX base stations fit multiGbit links
Axis Network has launched a family of MIMO Remote Radio Heads (RRHs) for OEM deployment of WiMAX networks globally. The RRHs present flexible multiGbit base station connections.
2007-03-06 High-power DC/DCs suit demanding RFPA apps
Ericsson Power Modules' fully featured, high-power DC/DC converters promise a high quality and cost-effective solution for demanding RFPA applications
2005-04-20 High-power amp IC boosts signals for military, communications apps
Mimix Broadband introduced a GaAs MMIC two-stage, single ended, X-band high power amplifier, which integrates an on-chip gate bias circuit to simplify biasing.
2011-02-28 High-gain linear amplifier module for WiMAX applications
Avago Technologies has announced a linear power amplifier module for WiMAX applications that enables it to coexist with other radios in portable devices.
1999-06-29 High-efficiency audio amplification using class-D audio power amplifiers
The paper deals with audio amplifiers based on a Class-D topology, its advantages with portable audio applications and the potential problems these amplifiers incur when designing without linear audio amplifiers in PDAs, multimedia notebooks, and other portable battery operated equipment.
2009-04-09 High power amp uses dual-sided bias architecture
Mimix Broadband Inc. has developed a GaAs MMIC high power amplifier with +41dBm pulsed saturated output power and 17dB small signal gain.
2012-07-27 HBT power amp targets wireless infrastructure apps
RFMD's RFPA2089 is a single-stage InGaP HBT power amplifier that offers high-gain linear operation at a comparably low DC power geared for next generation radios requiring high efficiency.
2004-12-03 GSM850/GSM900/DCS/PCS quad band PowerPlexer with integrated power control
This app note demonstrates an amplifier that can be designed into a GSM transmit front-end
2004-12-03 GSM850/GSM900/DCS/PCS quad band power amplifier module with integrated power control
This app note demonstrates an amplifier that can be designed into a GSM transmit front-end
2010-11-22 Galaxy Tab uses Anadigics power amplifiers
Samsung selects Anadigics' AWC6323 and AWU6601 to power tablet computer
2004-05-13 GaAs MMIC power amplifier and T/R switch for 1.73GHz wireless applications-AN23
This app note presents the P35-4780-C06 power amplifier and T/R switch MMIC, which is intended to complement the P35-4712-1 and P35-4713-1 transceiver.
2010-06-11 GaAs FET power amps rated for 18W, 30W
Toshiba America Electronic Components Inc. (TAEC) has expanded its Ku-Band GaAs FET lineup with two higher output power devices rated for 18- and 30W
2006-11-22 GaAs Bluetooth power amp extends battery life
TriQuint has introduced a GaAs Bluetooth power amplifier that enables designers to offer 50 percent power added efficiency (PAE) for longer mobile device battery life.
2012-08-23 Fundamentals of RF amplifier measurements
Know how to setup fundamental amplifier measurements such as S-parameters, K-factor gain compression, or pulsed measurements using a vector network analyzer
2010-10-07 Fujitsu sets record for power amplifiers in millimeter-wave W-band
Fujitsu uses gallium nitride high electron mobility transistors in power amplifier to achieve 1.3W in output
2008-02-07 Fujitsu debuts 77GHz CMOS-based power amp
Fujitsu Laboratories has developed a 77GHz millimeter-waveband power amp using standard 90nm CMOS process technology
2009-05-08 Front-end modules feature three power modes
Avago Technologies has released two new front-end modules that incorporate a power amplifier, duplexer, band-pass filter and coupler to improve efficiency and extend talk time in mobile handsets.
2005-04-26 Freescale RF power transistor cuts operating expenses
Freescale's new RF power transistor is designed to reduce transmitter power consumption and operating costs for digital and analog television broadcast apps
2013-06-11 Freescale outs power solutions for RF land mobile market
The devices are intended for mobile VHF, UHF and 700-900MHz transceivers used in public safety, professional mobile radio and other harsh machine-to-machine communications environments.
2015-07-22 Freescale expands broadband RF power amplifier line-up
The Airfast AFIC901N LDMOS RF integrated device and the AFT05MS003N LDMOS transistor can be operated at 3.6V or 7.5V and are geared for industrial radios.
2009-06-16 Flip-Chip 300?m recommendations for audio power amplifier
This application note describes the Flip-Chip CSP features and species how ST's customers can use them.
2005-10-17 Filterless amp saves PCB space, power
The choice of power amplifier can impact power consumption in today's mobile devices
2002-07-09 FCSI RF amplifier provides 20dB gain
Fujitsu Compound Semiconductor Inc. has introduced the FMM5815GJ-1 PA MMIC that provides a typical gain of 20dB.
2011-03-31 Faster TI quad DAC cuts power use 65
Texas Instruments' DAC3484 4-channel, 16bit DAC offers 1.25GSps at 40 percent smaller size than alternative quad DAC solutions and enables wideband power amplifier linearization of up to 250MHz.
2004-09-01 Fairchild RF power amp eyes CDMA2000-1X apps
Fairchild released an RF power amp optimized for CDMA2000-1X applications in the 824MHz to 849MHz frequency band for today's handset requirements
2002-11-22 Fairchild power amp extends battery life
The FAN7031 CMOS stereo PA from Fairchild Semiconductor consumes 4?A of current in shutdown mode over a power supply range of 2.7V to 5.5V
2005-06-17 Fairchild linear amplifier used in Broadcom's WI-FI design
Fairchild Semiconductor's RMPA5255 WLAN RF power amplifier has been selected for use in Broadcom's latest single-chip and PCI Express-enabled Wi-Fi reference designs.
2002-05-02 Fairchild CMOS power amp produces 1W
Designed for mobile phones, DECT phones, PDAs, and other portable applications, the FAN7021 CMOS power amplifier from Fairchild Semiconductor produces up to 1W of low-distortion continuous output power with supply voltages from 2V to 5.5V.
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