Product category:
Analogue and Mixed Signal ICs
News Release from: Rohm Electronics | Subject: BA7786FP-Y, BA7789FM and BH7821BFP-Y
Edited by the Electronicstalk Editorial
Team on 01 April 2003
Multimedia amplifiers ease audio
applications
A new series of integrated amplifier ICs simplifies design and cuts power consumption for audio circuits for headphones and speakers in portable computing and digital consumer devices.
Rohm Electronics has a new series of integrated amplifier ICs that simplify the design and minimise the power consumption of audio circuits for headphones and speakers in portable computing and digital consumer applications Rohm's new BA7786FP-Y, BA7789FM and BH7821BFP-Y multimedia ICs all integrate a stereo headphone amplifier with a stereo BTL speaker amplifier
This article was originally published on Electronicstalk on 7 Feb 2001 at 8.00am (UK)
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The BA7787FS IC features a built-in stereo headphone amplifier with a mono BTL speaker amplifier.
All four devices include an internal anti-pop circuit, an electronic volume switch, and a mute circuit.
The four new ICs deliver power consumption reductions through a two-system shutdown mode, which allows termination of the headphone and speaker amplifiers individually.
Additionally, each device incorporates two input pins that enable a 'beep' sound to be mixed with the line input.
The new devices are supplied in surface mount packages with dimensions ranging from 8.7 x 5.4 x 1.8 to 18.5 x 7.5 x 2.2mm.
Supply voltage for all devices is rated at 5V, and power dissipation ranges from 600 to 2200mW.
Maximum total harmonic distortion for the series is 1% and operating temperature is from 10 to 70C.
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