
‘Headphone Amplifier’
An Electronicstalk guide
Start with the news release Gain blocks for cellular bands GSM, CDMA and UMTS from Avago Technologies, which we summarised at the time by saying "Avago Technologies has expanded its high-performance power amplifier range with the MGA-31589 and MGA-31689 0.5-watt gain blocks, suitable for cellular infrastructure applications.". Several months prior to that, we featured the news release VGA for wireless infrastructure transceivers from Maxim Integrated Products: "Maxim Integrated Products has introduced the MAX2062, a fully programmable, multistate, dual-channel, analogue and digital IF/RF variable-gain amplifier suitable for automatic gain control circuits.".
In December 2010, we covered the news from Allegro Microsystems - take a look at Sensor IC withstands harsh automotive environments which says: "Allegro Microsystems has launched the A1356, a user-programmable linear Hall-effect sensor IC with a pulse width modulated (PWM) output for automotive gear and clutch detection and position sensing.".
Take a look also at the news release from Saelig, LCD display modules for gauges and meters, as well as DC/DC uModule PoL regulator for RAID systems from Linear Technology, and Op amp allows data acquisition and process control from Intersil.
Latest stories...
LNAs target wireless communications markets (December 2010)
Freescale Semiconductor has introduced four new low-noise amplifiers (LNAs) for wireless communications markets.
Ericsson DC/DC converter for radio applications (December 2010)
The topology used in Ericsson Power Modules' PKM4116ND quarter-brick DC/DC converter for radio applications has been optimised to reduce the number of components and reduce power losses.
DC/DC controller targets ASIC and FPGA supplies (November 2010)
The LTC3856 synchronous step-down DC/DC controller targets applications in high current ASIC and FPGA supplies, power-distribution buses, high-power audio amplifiers and network servers.
DC/DC controller can be used with ASIC supplies (November 2010)
Applications for the LTC3829 DC/DC controller include high-current ASIC and FPGA supplies, power-distribution buses, high-power audio amplifiers and network servers.
WM8958 enables HD audio in portable multimedia (November 2010)
Wolfson's WM8958 audio hub solution is designed to enable high-definition (HD) audio in portable multimedia applications, such as smartphones, tablet computers, e-books and navigation devices.
Maxim VGA serves as digital IF/RF device (October 2010)
Maxim Integrated Products has introduced a variable-gain amplifier (VGA) for circuits found in GSM/EDGE, CDMA, WCDMA, LTE and WiMAX applications, for example.
Interface for remote control of Femto amplifiers (October 2010)
A new interface from Laser Components allows remote control of Femto amplifiers and photoreceivers from a standard Windows PC with USB port via connection to the opto-isolated 25 pin D-Sub connector.
VNAs enable on-site installation and maintenance (October 2010)
The MS202x/3xB VNA Master handheld RF vector network analysers (VNAs) provide field engineers with a powerful S-parameter measurement tool for on-site installation and maintenance activities.
Further reading
- Stereo headphone amplifiers for media devices
Austriamicrosystems has launched the AS3560 and AS3561 stereo headphone amplifiers for mobile phones, portable navigation devices, music/media players and any media device that uses headphones.

Browse by category
- Active components (13556)
- Passive components (3584)
- Design and development (10248)
- Enclosures and panel products (3983)
- Interconnection (3643)
- Electronics manufacturing, packaging (3484)
- Industry news (2106)
- Optoelectronics (1959)
- Power supplies (3009)
- Subassemblies (5623)
- Test and measurement (5784)