Dialog's new DA7202 speaker driver IC is designed to deliver improved sound levels and efficiency for dual cell battery powered portable devices, without compromising sound quality
Dialog Semiconductor plc (FWB: DLG), a provider of highly integrated power management, audio, AC/DC, solid state lighting and short-range wireless technologies, announced today the first product in its new range of Class D audio products, the DA7202. This powerful, highly efficient low EMI Class D speaker driver provides greater power output and improved efficiency levels for UltrabooksTM, tablets and speaker accessories powered by a dual cell battery pack. Designed with a small footprint, the DA7202 helps keep devices, such as the increasingly popular Ultrabook as light and compact as possible for the consumer.
The DA7202 is available in a 9 bump WLCSP package, 0.5mm pitch that enables low cost printed circuit board (PCB) technology. The increased power output does not compromise the speaker audio quality and is designed to provide 90dB Total Harmonic Distortion plus noise (THD+N) and 100dB Signal to Noise ratio. This allows the end users to experience Hi-Fi quality audio, from ground shaking lows to delicate highs.
Historically, most mobile computing devices have used a CODEC with an integrated Class D amplifier, providing a speaker driver output limited to 1Watt (W). Using a dual cell Class D amplifier significantly improves the power output of the device, driving up to 3.5Wrms, which equates to a 3.5x increase of power into the speaker. In addition to a higher power output, this audio architecture maintains better efficiency, as having a direct connection from the battery to Class D amp, eliminates DC-DC power loss.
Additional benefits include:
Robust short circuit and thermal overload protection to prevent device damage during a fault condition;
Differential audio inputs for improved resistance to external noise; and
Low Electromagnetic Interference (EMI) by using spread spectrum modulation. This reduces interference in nearby components, thereby simplifying system design.
'The DA7202 perfectly addresses the requirements of the Ultrabook and other portable device markets powered by a dual cell battery pack,' said Udo Kratz, Senior Vice President and General Manager, Mobile Systems Business Group at Dialog. 'Traditional amplifiers integrated in a CODEC are limited in the power they can supply, but our new external Class D amplifier offers a powerful and more efficient solution for the expanding dual cell market. Within Dialog, we are constantly developing power saving technologies, and this focus is enabling fresh, exciting and enhanced user experiences for the portable market,' added Kratz.
ENDS
About Dialog Semiconductor
Dialog Semiconductor creates highly integrated, mixed-signal integrated circuits (ICs), optimised for personal portable, low energy short-range wireless, LED solid state lighting and automotive applications. The company provides flexible and dynamic support, world-class innovation and the assurance of dealing with an established business partner.
With its focus and expertise in energy-efficient system power management and a technology portfolio that also includes audio, short-range wireless, AC/DC power conversion and multi-touch, Dialog brings decades of experience to the rapid development of ICs for personal portable and digital consumers applications, including smartphones, tablets, Ultrabooks(TM) and digital cordless phones.
Dialog's power management processor companion chips increase the performance of portable devices by extending battery lifetime, enabling faster charging and enhancing the consumer's multimedia experience. With world-class manufacturing partners, Dialog operates a fabless business model.
Dialog Semiconductor plc is headquartered near Stuttgart with a global sales, R&D and marketing organisation. In 2012, it had $774 million in revenue and was one of the fastest growing European public semiconductor companies. It currently has approximately 1,000 employees worldwide. The company is listed on the Frankfurt (FWB: DLG) stock exchange (Regulated Market, Prime Standard, ISIN GB0059822006) and is a member of the German TecDax index. It also has convertible bonds listed on the Euro MTF Market on the Luxemburg Stock Exchange (ISIN XS0757015606).
Contacts:
Dialog Semiconductor
Lauren Ofstedahl
Phone: +1 408-845-8518
lauren.ofstedahl@diasemi.com
Web: www.dialog-semiconductor.com
Twitter: @DialogSemi
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Media Contact:
Racepoint Group
Lauren Ginsberg
Phone: +1 617 624-3254
lginsberg@racepointgroup.com
