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power amplifier What is a power amplifier? Search results

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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.
total search2432 articles
2005-09-21 Zetex Acoustar technology used in Theta's digital audio amplifier
Zetex and Theta Digital announced that Zetex' Acoustar digital amplifier processing technology is being used to provide unprecedented sound fidelity in Theta's new digital audio amplifierthe Virtu PowerDAC
2005-02-21 World's 'smallest linear PA module' includes on-chip power detector
RFMD's new RF5198 module is touted to be the world's smallest linear PA module to include an on-chip power detector
2010-08-19 WLAN power amplifier is 1.5mm x 1.5mm
Microsemi introduces the new LX5514M power amplifier, a continuation of their WLAN product family expansion for the smartphone market .
2009-12-04 WLAN power amp consumes 391mA current
Microsemi has begun volume production of its LX5518 power amplifier for IEEE 802.11b/g/n WLAN applications in the 2.4GHz to 2.5GHz frequency range.
2012-01-17 Wideband power amp geared for broadband apps
The RF3928B is a 65V 380W high power discrete amplifier for S-Band pulsed radar and air traffic control and surveillance.
2006-02-17 WCDMA PAs tout industry's lowest power consumption
Anadigics's new HELP3 WCDMA power amplifiers tout to offer the industry's lowest power consumption and provide full compliance with HSDPA requirements
2005-02-28 W-CDMA PA modules reduce power consumption by 50 percent
Anadigics unveiled a new family of 4-by-4mm HELP W-CDMA PA modules that use the company's proprietary mode switching techniques.
2005-05-12 W-CDMA gets a boost from dual-band power amplifier module
Fairchild's new W-CDMA power amplifiers is one of the first dual-band W-CDMA PAs that offers a 3-by-3mm footprint
2001-06-11 Using Xicor digitally controlled potentiometers in commercial RF power amplifier applications
This application note describes how to implement Xicor's digitally controlled potentiometers in commercial RF power amplifier applications.
2010-06-23 Using the MCP4728 12bit DAC for LDMOS amplifier bias control applications
The DAC is favourably used in the bias control circuit for the base station power amplifier module. In practical applications, the bias control circuit maintains the IDQ within a 4 percent range. This application note shows an example of how the DAC converter is used for this purpose.
2001-09-20 Using the EFA240D-89 as a high-intercept 2GHz linear power amplifier
This application note outlines the behavior and circuit layout of the Excelics EFA240D-89 high-power MESFET
2007-04-23 Using the DS4303 to bias LDMOS RF power amps
One key element to providing high performance with LDMOS amplifiers is compensating the gate bias voltage to maintain a constant quiescent current over temperature.
2002-05-20 UltraRF, Hitachi Kokusai codevelop amplifier modules
UltraRF Inc. and Hitachi Kokusai Electric of Japan have agreed to jointly develop RF power amplifier modules based on UltraRF's LDMOS-8 technology.
2008-04-15 UHF RFID reader IC claims 'lowest' power draw, BOM
austriamicrosystems' AS3990 Gen 2 UHF reader IC, targeted at power- and cost-sensitive applications, claims the industry's lowest power consumption and lowest BOM
2001-04-03 Two-tone linearity in a 900MHz silicon bipolar class AB amplifier
This application note shows the typical behavior of a 900MHz amplifier operating in the class AB mode, and describes a method to create suppression of the intermodulation products to better than -30dBc over a 40dB dynamic range (1mW to 10W peak envelope power).
2001-04-03 Two-stage wideband HF linear amplifier for 400W PEP using BLW96 and BLW50F
This application note presents a wideband power amplifier design that provides up to 400W peak envelope power (PEP) using two BLW96 transistors. It also describes a suitable drive amplifier using two BLW50F transistors in class A operation.
2009-10-28 TS4990 low voltage audio power amplifier evaluation board user guidelines
The DEMO TS4990 is an evaluation board designed for the TS4990 low power audio amplifier.
2005-10-10 TriQuint's new millimeter wave amps offer high output power
TriQuint introduced four new millimeter wave amplifiers designed for the demanding bandwidth needs of point-to-point radios, point-to-multipoint communications, and commercial or military satellite communications apps.
2007-10-09 TriQuint tips green base station power amp
Triquint Semiconductor has started sampling high-voltage GaAs power amplifier transistors it claims substantially increase the efficiency of 3G cellular base stations, leading to meaningful energy savings.
2006-03-23 Transceiver targets power line communications
STMicroelectronics has announced a new power line transceiver for narrowband power line communications designed for space constrained and cost-sensitive home and building automation applications and remote monitoring systems
2003-09-04 Toshiba power amplifier suits 5GHz WLAN apps
Toshiba Corp. has extended its line of RF GaAs HBT MMICs to include a power amplifier specifically developed for use in 5GHz WLAN systems.
2006-07-12 Toshiba audio power amp gives 21W per channel
Toshiba America's first Class-D audio power amplifier IC, the TB2924FG, delivers up to 21W per channel in a heatsink-free design for audio consumer electronics applications.
2009-01-27 Tiny power MOSFETs offer backside insulation
Vishay Intertechnology Inc. has launched what it claims to be the first TrenchFET power MOSFET in the chipscale MICRO FOOT package to feature backside insulation
2004-06-01 TI power amps tailor-made for small LCD TVs
Providing LCD TV manufacturers with the feature set required to meet high efficiency audio demands, TI announced two stereo Class-D audio power amplifiers
2005-06-03 TI power amplifier matches sound quality with high-quality image
The new digital-input Class-D audio power amplifier for flat panel displays from TI enables designers to develop products with sound quality that matches the display's high-quality image, while minimizing cost and component count
2005-01-18 TI audio power amplifier with 80% lower noise floor
TI introduced a high-performance, filter-free stereo Class-D audio power amplifier.
2003-09-23 TI audio power amp has dc volume control
Expanding its portfolio of audio power amplifiers for LCD flat panel displays, Texas Instruments has introduced what it claims is the industry's first 5V filter-free class-D audio power amplifier.
2003-09-30 TI audio amplifier targets cellphones, PDAs
Texas Instruments has introduced what it claims is the highest output power mono Class-AB audio amplifier in the market today.
2004-11-25 TDA856x and TDA8571J power amplifiers
This app note contains application information for the power amplifier TDA856x series and the TDA8571J
2005-11-24 TAEC power amp boosts WLAN, PHS and Bluetooth signals
Toshiba America Electronic Components released a new medium power Silicon Germanium BiCMOS power amplifier that is suitable for use in 1.9GHz to 2.5GHz band wireless apps.
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