Analogue, Mixed Signal, LSI


Speaker amplifier features analog volume control

19 April 2006 Analogue, Mixed Signal, LSI

Maxim's MAX9787, a Class AB 2,2 W speaker amplifier with integrated analog volume control, a beep input, and industry-leading 90 dB power-supply rejection ratio (PSRR), delivers audiophile audio quality with 0,01% THD+N, making it ideal for multimedia monitors, notebook computers, and portable audio players.

The analog volume control can be driven with a potentiometer, an RC-filtered PWM source, or a DAC output. The Beep input allows one to add alert signals from a system controller to the audio path. The 90 dB PSRR ensures low THD+N even when using an unregulated power supply.

Click-and-pop suppression eliminates audible transients during power and shutdown cycles. Other device features include a single-supply voltage, shutdown mode, logic-selectable gain, and thermal-overload and output short-circuit protection. Four maximum gain settings range from 6 dB to 10,5 dB with two gain pins.

The MAX9787 is offered in thermally efficient 28-pin thin QFN (5 x 5 x 0,8 mm) package, specified over -40 to +85°C.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

IMU with dual-sensing capability
EBV Electrolink Analogue, Mixed Signal, LSI
ST’s 6-axis inertial measurement unit integrates a dual accelerometer up to 320g and embedded AI for activity tracking and high-impact sensing.

Read more...
Plural data converter series
Analogue, Mixed Signal, LSI
Silanna Semiconductor has announced the launch of Plural, a new generation of data converters for customers eager to find a more available, affordable, high-performance alternative to existing brands.

Read more...
Track with precision
Electrocomp Telecoms, Datacoms, Wireless, IoT
KYOCERA AVX provides innovative antennas for cellular, LTE-M, NB-IoT, LoRa, GNSS, BLE, UWB, Wi-Fi, and future Satellite IoT.

Read more...
RGBIR sensor with I2C interface
Electrocomp Opto-Electronics
Available in a miniature opaque 2,67 x 2,45 mm package, Vishay’s VEML6046X00 includes high-sensitivity photodiodes, a low noise amplifier, and a 16-bit analogue to digital converter.

Read more...
Thick film power resistors
Electrocomp Passive Components
Vishay has released a new product to the market, its thick film power resistor, which is offered in a clip-mount TO-247 package.

Read more...
Telemetry retrofit for sustainable resource management
CST Electronics Test & Measurement
AquaMeter is a cost-effective secure telemetry retrofit that can easily be added to hundreds of millions of legacy mechanical water meters.

Read more...
Precision JFET op-amp
Altron Arrow Analogue, Mixed Signal, LSI
The specifications of the ADA4620 make it optimal as a front-end amplifier in a data-acquisition system, or for a TIA circuit with high input impedance.

Read more...
A new era in modular I/O solutions
Rugged Interconnect Technologies Analogue, Mixed Signal, LSI
Aerospace and defence system designers are demanding scalable and high-performance I/O solutions and while traditional mezzanine standards have proven reliable, they often fall short of meeting modern bandwidth, size, and flexibility requirements.

Read more...
High voltage instrument op-amp
iCorp Technologies Analogue, Mixed Signal, LSI
The SGM621B is a high accuracy, high voltage instrumentation amplifier, which is designed to set any gain from 1 to 10 000 with one external resistor.

Read more...
HiRel components from Kyocera AVX
Electrocomp Passive Components
Kyocera AVX Corporation is a leading supplier of advanced components and interconnect solutions, offering a broad selection of passive components and connectors.

Read more...