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2002-08-01 TI Class D amp eliminates output filter
The TPA2005D1 Class D amplifier from Texas Instruments Inc. eliminates the need for an output filter, making it 30 percent smaller than the company's previous products
2005-12-23 National unveils two new amps
National Semiconductor introduced a Boomer mono Class D audio amplifier in one of the industry's smallest micro SMD package, as well as a high-power stereo Class D amplifier.
2005-01-11 National speaker drivers promote credit-card thin handset designs
National unveiled a new trio of Boomer audio amplifiers that it says will result in "credit-card-thin" handsets and reduced power consumption
2011-05-11 Micro PMIC supports Li-Ion powered devices
austriamicrosystems introduces the AS3605 Micro PMIC designed for portable devices powered by a single-cell Li-Ion battery.
2007-03-19 Local fabs should rethink strategies, says PAM
Though still among the emerging buds in the industry, Power Analog Microelectronics Inc. gives its take on how local design houses should maneuver their way in the industry and resolve issues of cost and performance in IC development
2002-05-07 KEC surface-mount package has five terminals
Designed for use in power management ICs, the DPAK-5 surface-mount package from KEC Corp. provides five terminals, allowing designers to develop multiple functions for a single device
2004-01-21 Holtek PA features high signal-to-noise ratio
The HT82V735 low voltage stereo audio power amplifier (PA) from Holtek Semiconductor Inc. features high signal-to-noise ratio and low harmonic distortion.
2007-09-17 Class-D op amp boasts high efficiency, small size
Texas Instruments Inc. has introduced a monolithic, filter-free, Class-D audio power amplifier with an integrated boost converter, which provides constant output power for portable applications
2005-05-11 Class-D amp enhances flat screen TV sound quality
This Class-D amplifier for flat screen TVs from Royal Philips Electronics drives 20W of continuous output power per channel with no external heat sink
2008-10-01 Analog vendors raise portable sound quality to higher level
With mobile phone users struggling to hear and be heard in noisy environments, designers are working hard to integrate more advanced audio processing into portable audio devices
2004-06-23 TI headphone driver allows sustained dynamic range of >120dB
TI introduced the TPA6120A2, a high-fidelity headphone driver that completes an entire audio signal chain for SACD and DVD audio players
2006-04-10 Solution for 3G, WiMAX base stations suits Freescale RF transistors
TelASIC announced the availability of transmit subsystems for HSDPA/W-CDMA, EVDO/CDMA2000 and WiMAX base station radios.
2010-03-11 RF range extender combines PA, LNA, switches
Texas Instruments Inc. is rolling out a highly-integrated, cost-effective RF range extender for low-power wireless applications at 850MHz to 950MHz
2005-09-08 RF ICs can be quite complex
According to one industry analyst, the worldwide handset RF semiconductor market is expected to grow from $5.3 billion in 2004 to $8.26 billion in 2008
2005-05-09 Philips unveils new flat TV solution
Philips announced its latest Class-D stereo amplifier for flat televisionsthe TDA8931T, which is designed to enable manufacturers to develop flat TVs with very high audio power and sound quality
2008-01-17 Perform thermal tests on Class D amps
There are two kinds of amplifiers used to generate the output power, class AB and class D amplifiers. The shift to class D was mainly the result of the introduction of flat-screen LCD and plasma TVs, in which space was limited and heat dissipation became an issue. Since the thermal test standards were developed when only class output power AB was used, we want to investigate if they are still appropriate for class D
2006-01-10 Op amp integrates cooling devices
Power Amp Design's operational amplifier boasts rail-to-rail operation at both the inputs and the outputcombined with a power supply voltage range from 8V to 50V (100V total supply voltage) and an output range up to 15A
2002-08-06 ON Semiconductor to expand wireless product line
ON Semiconductor has launched a campaign to expand its presence in the portable and wireless markets.
2007-09-06 NXP single-chip solution enables ultralow-cost handsets
NXP Semiconductors has released its Nexperia PNX4903 GSM/GPRS-optimized multimedia solution for the ultralow-cost segment of the mobile handset market.
2006-09-27 National rolls out 'first' 200V stereo driver
National Semiconductor has introduced an integrated 200V stereo driver for high-power amplifiers, said to be the first in the industry
2016-02-04 Multiphase converters: Beyond high current apps
In recent years, designers of high-end audio systems have started to take advantage of the multi-phase approach. This article looks into the benefits of multi-phase converters
2008-03-03 Maximize Class-D driver benefits
Notes Alex Mihalka of International Rectifier, Class-D audio amplification circuits offer high efficiency and small size compared to the more prevalent linear Class-AB topology. Solid-state drivers that deliver 1A or more gate-drive current with 100V capability for driving half-bridge topologies to power levels of 500W into 8 ensure quality audio
2003-05-29 IceFyre amps adopt TriQuint GaAs pHEMT process
IceFyre Semiconductor has selected TriQuint's 0.5?m GaAs pHEMT process technology to fabricate its switch-mode 802.11a and a/b/g power amps
2008-02-27 Hottest devices, technologies debut at 13th IIC-China
Semiconductor manufacturers are expected to roll out the latest devices and solutions at the 13th IIC-China when the event kicks off Feb. 28 at the Chengdu New International Exhibition and Convention Center.
2007-12-03 Here come supercapacitors
Supercapacitors bridge the power gap between batteries and conventional capacitors, delivering higher power bursts than batteries and storing more energy than capacitors
2010-04-13 FSK transceivers with PA, LNA cover 2.4-5.8GHz
RF Micro Devices Inc. has introduced the ML2730, a single-chip, fully-integrated FSK transceiver with integrated power amplifier (PA) and low noise amplifier (LNA
2008-12-09 FAQs: Amplifiers (Part 1)
Part 1 tackles questions like what are the advantages of the BiCMOS process? What is Output High Voltage (VOH) for a comparator? What is a Programmable Gain Buffer?
2007-11-14 Digital amp puts home-theater sound in TV speakers
D2Audio has announced a digital amplifier IC for TV that it says will enable speakers inside flat-panel TVs to produce home theater sound without adding any cost
2006-10-02 Design tricks for digital amps
Kevin Belnap gives design tips on how to avoid common design problems with an SMPS and digital amplifier
2009-04-01 Design 101: Class D amplifiers
Class D audio amplification is fast becoming the solution of choice in consumer audio because of its ability to extend long battery life and compact dimensions
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