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Electronic Components & Devices -> Electronic Amplifiers -> Audio Amplifiers

Audio Amplifiers

(Showing headlines 1 - 20)   more ....
Class-D Audio Amp is suited for eCall, telematics applications.

Class-D Audio Amp is suited for eCall, telematics applications.

Texas Instruments, Inc. (TI)    Dallas, TX 75243-4136
Aug 28, 2014 Supplied in 16-pin HTSSOP with PowerPAD package, TAS5421-Q1 automotive Class-D audio amplifier integrates 40 V load-dump and over-temperature protection and diagnostics in one device for emergency call (eCall) and instrument cluster systems. Mono-channel, analog differential input product integrates I˛C diagnostics and offers quiescent current that eliminates need to use additional battery cells. Integration helps simplify automotive-grade diagnostic design and extend battery back-up power.

Upconverters and Power Amplifiers range from 25-100 W.

Norsat International Inc.    Richmond, BC V6V2N2
Apr 15, 2014 Comprising Ku-band block upconverters and solid state power amplifiers, ATOM Series is available for standard, extended, and custom frequency Ku-bands in 25, 40, 50, and 100 W configurations. Units provide off-the-shelf options, such as wideband, fast switching, and active or passive cooling. Available with custom RF output options from 13.0–17.5 GHz for non-traditional frequencies, devices are suited for portable VSAT, Satcom on the Move, Radar, TWTA replacement, and airborne terminals.

DSD DAC/Headphone Amplifier offers 256X DSD upsampling mode.

Antelope Technologies    Highlands Ranch, CO 80129
Jan 09, 2014 Equipped with Voltikus power supply and aluminum remote control, Zodiac Platinum features 256X unsampling mode, where DSD64 and DSD128 are unsampled to DSD256. Unit includes custom-built USB chip capable of carrying DSD128 and up 24-bit, 384 kHz PCM files, as well as wide range of connectivity options, including AES/EBU and S/PDIF I/O, TOSLINK inputs, set of balanced and unbalanced analog outs, and unbalanced RCA input. In addition, device provides 64-bit Acoustically Focused Clocking.

Audio Amplifiers feature closed-loop architecture.

Texas Instruments, Inc. (TI)    Dallas, TX 75243-4136
Oct 10, 2013 Capable of streaming 20 W continuous power per channel without heatsink, TAS5760xx Series is suited for mid-power stereo audio applications, including TVs, soundbars, portable docking stations, and Bluetooth® speakers. Units feature THD+N of 0.03% at 1 W, crosstalk of -92 dB, and 66 µV idle channel noise. Supporting voltage range of 4.5–26.4 V, digital-input I2S amplifiers provide power supply rejection ratio of 80 dB, switching frequency up to 1.2 MHz, and RDS(on) of 120 mΩ.

Stereo Mixer/Amplifier suits above ceiling applications.

Roemtech, LLC    Lewisville, TX 75057
May 28, 2013 Featuring 3 inputs, PlenumAmp PMA-350H is designed for conference room and classroom audio systems. Plenum-rated, 24 V, 50 W mixer/amplifier features Auto-HummBuster technology, which automatically suppresses noise that sometimes infiltrates classroom audio systems.  Unit is compatible with optional external wall volume control, which utilizes 10K analog pot. To provide priority override for P/A system, amplifier senses P/A audio and mutes connected audio sources to ensure delivery of important messages.

Reference Design supports automotive emergency call systems.

Texas Instruments, Inc. (TI)    Dallas, TX 75243-4136
Mar 28, 2013 Integrating AEC-Q100 qualified components, Automotive eCall Reference Design includes TPA3111D1-Q1 mono Class D audio amplifier; TPS43330-Q1 single-boost, dual synchronous buck controller; TLV70033-Q1 voltage regulator; and MSP430F2232 16-bit microcontroller. TPA3111D1-Q1 delivers 10 W output power at 8 Ω with greater than 90% efficiency, while TPS43330-Q1 supports automotive start/stop and boosts back-up battery supply voltage, allowing operation down to 2 V at input.

Class-D Digital Amplifier ICs optimize in-car audio.

Class-D Digital Amplifier ICs optimize in-car audio.

STMicroelectronics    Lexington, MA 02421
Oct 23, 2012 Featuring integrated digital input, 4 x 135 W Model FDA4100LV and 4 x 50 W Model FDA450LV require no signal conversion or filtering circuitry. Devices provide 4, 2, and 1 Ω speaker driving capability, with SNR ratio of 110 dB and 108 dB dynamic range. Feedback loop allows use in OEM and aftermarket products by minimizing dependence on speaker type. Tested for compliance with automotive EMI standards, ICs are stop-start engine compatible and include I2C interface for digital control and diagnostics.

Class D Speaker Amplifiers offer high jitter tolerance.

Maxim Integrated Products    Sunnyvale, CA 94086
Oct 02, 2012 With digital input for noise immunity, Models MAX98355 and MAX98356 feature pulse-code modulation and pulse-density modulation input, respectively. Units have internal circuitry that detects input clock and automatically calculates sample rate. Providing 2.5–5.5 V single supply operation with 92% efficiency, Class D amplifiers deliver optimal audio quality with high jitter tolerance of 0.013% THD+N at 1 KHz and 99 dB dynamic range.

Class-D Audio Amplifiers increase performance, lower power draw.

Texas Instruments, Inc. (TI)    Dallas, TX 75243-4136
Jul 06, 2012 Supplied in 10 x 6 mm, 32-pin HTSSOP, TPA3116D2/TPA3118D2/TPA3130D2 analog-input class-D stereo amplifiers are intended for use in soundbars, after-market automotive solutions, portable audio docks, and LCD TVs. Programmable switching rates of 400 KHz to 1.2 MHz and supply range of 4.5-26 V lend to audio output optimized for quality and efficiency. Each model has closed-loop design, and FETs allow 30 W x 2 operation without heat sink or 50 W x 2 with heat sink (TPA3116D2 only).

Class D Amplifier comes in 1 x1 mm package.

Maxim Integrated Products    Sunnyvale, CA 94086
Jan 20, 2012 Providing Class AB audio performance with Class D efficiency while helping to conserve PCB space in mobile applications such as portable electronic products, MAX98314 mono, 3.2 W, Class D amplifier has integrated input coupling capacitors that provide optimized voltage-independence and matching. Linearity promotes system PSRR and performance at low frequencies, while noise floor level and click-and-pop suppression techniques enhance sound quality.

Class-D Audio Amplifier  delivers 3.2 W/mm˛ power density.

Class-D Audio Amplifier delivers 3.2 W/mm˛ power density.

STMicroelectronics    Lexington, MA 02421
Jan 13, 2012 Measuring 100 mm˛, Model TDA7498E delivers 320 W of total output power, 160 W on each channel. Device exhibits SNR of 100 dB and provides 4 selectable, fixed-gain settings at 23.8, 29.8, 33.3, and 35.8 dB. Analog IC enables design of platform solutions where speaker impedance can be changed from 8-2 W without power or current limitation. Other features include built-in suppression of pop/click noises, standby and mute functions, and balanced input for best TDMA noise rejection.

ENERGY STAR® Qualified Amplifiers have convection cooled design.

ENERGY STAR® Qualified Amplifiers have convection cooled design.

Crestron Electronics, Inc.    Rockleigh, NJ 07647
Oct 12, 2011 Used in commercial environments where multiple speakers need to be run from one amplifier, convection-cooled AMP Series helps meet energy savings objectives without sacrificing audio performance. Each channel is selectable for 210 W @ 4 ohms or 120 W @ 8 ohms and isolated 120 W at 70 or 100 V. Delivering low-noise, low-distortion performance, amplifiers have automatic shut-off and turn-on functionality and suit background music, AV presentation, paging, and public address applications.

Commercial Audio Amplifiers meet ENERGY STAR certification.

Commercial Audio Amplifiers meet ENERGY STAR certification.

Crestron Electronics, Inc.    Rockleigh, NJ 07647
Jun 20, 2011 Channel selectable for 70 or 100 V, AMP Series is suited for lecture halls, restaurants, and conference rooms. At less than 11 in. deep, Models AMP 2210S and AMP-3210S offer 2 or 3 channels to drive 4 and 8 W speakers at 120 W and 210 W, respectively. At less than 15 in. deep, Models AMP-2210T and AMP-3210T deliver 2 or 3 channels for 210 W at 4 W, 120 W at 8 W, and 120 W at 70/100 V. Model AMP-2210HT offers full 210 W at 70 V. All fit in 1U rack and include auto power-down.

Audio Amplifiers address small venue needs.

FSR Metal Products    West Paterson, NJ 07424
May 17, 2011 Suited for boardrooms, houses of worship, control rooms, classrooms, and libraries, Intelli-Tools IT-A25-M70 Mono Amp provides 4-8 W speaker output or 70 V line output at 25 W RMS, while IT-A25 Stereo Amp delivers 25 W/channel output at 8 W and can be bridged to drive 4 W load at 50 W. Both include signal sense trigger for sleep and wake up, music and alarm muting capability, surface mounting brackets, and self-adhesive rubber feet.

Digital Audio Power Amplifier suits thin-panel televisions.

Texas Instruments, Inc. (TI)    Dallas, TX 75243-4136
Apr 26, 2011 Model TAS5727, 25 W digital audio power amplifier features 2-band dynamic range compression to provide audio processing capabilities that overcome audio quality limitations of small speakers. Designed for driving stereo bridge-tied speakers, product has RDS(ON) of 75 mW and class-D operation that eliminates need for heatsinks. It is programmed using TAS57xx Graphical Development Environment and can be managed using CC8520 PurePath(TM) SOC via I2C interface.

Class G Stereo Analog Amplifier IC targets mobile handsets.

National Semiconductor Corp.    Santa Clara, CA 95051-0695
Mar 02, 2011 PowerWise® LM49251 IC combines 1.4 W Class D speaker amplifier, 20 mW Class G headphone amplifier, and ALC in 2.55 x 3.02 mm micro SMD package. Consuming less than 7 mA quiescent current at 3.3 V, unit features low EMI pulse-width modulation architecture that reduces RF emissions while preserving audio quality. Mode selection, shutdown, and volume are controlled through I2C-compatible interface, while no-clip ALC feature prevents distortion as battery voltages drop.

Stereo Analog Subsystem features low power consumption.

National Semiconductor Corp.    Santa Clara, CA 95051-0695
Mar 01, 2011 Designed for smart/feature phones, PowerWise® LM49251 combines 1.4 W Class D speaker amplifier, 20 mW Class G headphone amplifier, and automatic level control (ALC) in an 2.55 x 3.02 mm, 30-bump micro SMD package. Class G headphone amp dynamically reduces supply voltage to lower power consumption and extend audio playback time, while ALC provides several options to control audio distortion. Power consumption is less than 7 mA of quiescent current at 3.3 V for loudspeaker and headphone.

Headphone Amplifier facilitates sound quality testing.

Headphone Amplifier facilitates sound quality testing.

Brüel & Kjćr    Norcross, GA 30071-1588
Feb 10, 2011 Supporting listening panels for up to 12 people, Model ZE-0769-004 is suited for sound evaluation during design phase, prototype evaluation, or troubleshooting of new vehicles. Since absolute level has direct effect on juror preference, headphone amplifier is designed to give same level in all channels and has stepped gain control to accurately return to previous setting. Amplifier produces exact replica of input signal and delivers unfiltered signal to all outputs.

Class-G Amplifier targets media players and mobile handsets.

Texas Instruments, Inc. (TI)    Dallas, TX 75243-4136
Feb 01, 2011 Integrating DAC and power rails, Model TLV320DAC3202 features digital input I˛S and integrated clocking system that delivers 100 dB SNR at 6.5 mW power dissipation. Power management technology facilitates seamless operation between battery and switched mode input voltage supply for efficient playback. With 2 x 2.5 mm footprint, standalone headset driver offers optimal PSRR, enabling direct power from asynchronous switched mode input voltage supply at 100 dB per channel SNR.

Class D Amplifier offers optimized EMI performance.

Maxim Integrated Products    Sunnyvale, CA 94086
Jan 21, 2011 Housed in 0.3 mm pitch, 9-bump WLP measuring 1 x 1 mm, MAX98304 provides output power to 3.2 W with 10 µVrms noise. Patented EMI-reduction techniques and circuit design eliminate need for output filtering. Since no filtering components of any kind are required with speaker cable or trace lengths of 24 in. and beyond, MAX98304 saves board space. Fully specified over -40 to +85°C temperature range, amplifier is suited for cell phones, tablets, e-readers, notebooks, and netbooks.

(Showing headlines 1 - 20)   more ....

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