Product category:
Analogue and Mixed Signal ICs
News Release from: STMicroelectronics | Subject: STA510F amplifier
Edited by the Electronicstalk Editorial
Team on 10 January 2008
Power amplifier preserves audio quality
STMicroelectronics' STA510F amplifier preserves the full audio quality of the PWM input signal, providing a cost-effective output stage for demanding but price- sensitive applications
STMicroelectronics has released the STA510F digital power amplifier, capable of driving up to 100W per channel of audio into stereo 8ohm loads The device will also drive 4 x 50W into 4ohm, or up to 200W in a mono-aural configuration
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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The STA510F is intended to match other devices that use ST's FFX (full flexible amplification) digital modulation technology, but is sufficiently flexible to accept signals from other drivers using any PWM modulation scheme, such as ternary, phase shift or binary.
The amplifier preserves the full audio quality of the PWM input signal, providing a cost-effective output stage for demanding but price- sensitive applications such as home theatre and cinema systems and mini- and micro-component audio systems.
In addition, the STA510F simplifies design and reduces the bill of materials (BOM) by integrating the circuitry required for the critical turn-off sequence of the logic and power-stage power supplies.
ST's 'easy start' scheme eliminates the requirement for accurate control of the power-down sequence using external circuitry, thus ensuring ease of use for audio system manufacturers and increased reliability.
The new amplifier is manufactured using ST's BiCMOS-DMOS process technology, which allows the integration of DMOS power, bipolar and CMOS structures on the same chip.
It is a suitable companion for the new STA330, a 2.0 channel PWM controller based on ST's FFX technology and the STA331, an FFX audio processor coupled with an ARM7TDMI core.
The FFX family offers high audio quality, lower power dissipation and reduced manufacturing costs for applications such as wireless products and personal and home audio systems.
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