Dialog Semiconductor Unveils Standalone Class-G Audio Codec with Industry-Leading 2.5mW Consumption

http://www.businesswire.com/news/home/20091007006530/en

Tiny 3x3mm footprint features a programmable filter engine to optimise headphone
and speaker response to be demonstrated this week at the 127th AES Convention in
New York
KIRCHHEIM, Germany & TECK, Germany--(Business Wire)--
Dialog Semiconductor plc (FWB: DLG), a leading provider of highly integrated
innovative Power Management Semiconductor solutions, today announced the DA7210,
a high performance Class G audio codec that incorporates the industry's first
onboard general purpose filter (GPF). The filter is a configurable signal
processing engine that enables fine-tuning and optimisation of the output signal
for small speakers and enclosures. Its integration saves design time, board
space and cost.

The DA7210 includes a true-ground, capacitor-less headphone driver which helps
improve bass response. It features the industry's lowest quiescent headphone
playback power consumption at 2.5mW and only 5mW operating power under listening
conditions. This combination extends battery life significantly in low power
digital portable audio products such as smart phones, personal media players,
multimedia handsets and personal navigation devices.

DA7210 delivers 40mW output into 16 Ohm headphones. It uses output signal
envelope tracking across multiple pre-defined levels for true ground operation
and features an integrated PLL for sample rate flexibility. The device operates
down to 1.8V simplifying digital processor interfacing.

The GPF enables onboard signal tailoring and performance tuning without
degradation or loss of sound quality, and removes the need for a dedicated
external DSP.

'With the introduction of the DA7210 Dialog has significantly eased the portable
audio design process for portable applications without sacrificing sound
quality. By incorporating a GPF on the codec we have not only offloaded these
tasks from the processor, we have significantly lowered the cost and power
consumption when compared with traditional solutions that require an external
DSP,' said Mark Jacob, director of marketing at Dialog Semiconductor. 'The
DA7210 delivers the ultimate mix of high performance audio, ultra low power
consumption, and reduced system design complexity.'

Traditional low power audio codecs rely on sophisticated external DSP devices
running proprietary algorithms for audio enhancement or more complex noise
suppression functions. Dialog's integral GPF comprises eight programmable
bi-quad sections delivering flexible DSP processing functionality within the
codec device itself. The audio signal sent to the speakers can be tailored for
optimum response without modifying the host processor software. In addition to
output tailoring, the GPF can be used for equalisation and notch filtering, for
example, enabling the noise from camera zoom motors to be attenuated and other
audio enhancements including 3D spatial effects.

The DA7210 features stereo playback/record, high signal-to-noise ratio (100dB
DAC and 95dB ADC), a 24-bit sample rate up to 96kHz and an integral I2C/PCM
interface. It includes differential stereo microphone amplifiers. It is packaged
in a 0.4mm-pitch QFN or CSP package with a 0.5mm-pitch CSP option (named the
DA7211).

Engineering samples will be available from November 2009 with volume production
delivery from Q1 of 2010.

For further information and reader enquiries:

Birgit Hummel, Dialog Semiconductor, Neue Strasse 95, D-73230
Kirchheim/Teck-Nabern, Germany.
Tel: +49 7021 805 412
Fax: +49 7021 805 200
E-mail: birgit.hummel@diasemi.com
Web: www.dialog-semiconductor.com

For editorial enquiries, including interviews and contributed articles:

Rob Ashwell, Publitek Limited, 18 Brock Street, Bath, BA1 2LW, United Kingdom
Tel: +44 (0)1225 470 000
E-mail: rob.ashwell@publitek.com

Note to editors:

Dialog Semiconductor creates energy-efficient, highly integrated, mixed-signal
circuits optimised for personal mobile, lighting & display and automotive
applications. The company provides flexible and dynamic support, world-class
innovation and the assurance of dealing with an established business partner.
Customers with a significant contribution to revenue include Sony-Ericsson,
Apple, Bosch and TridonicAtco.

With its unique focus and expertise in system power management, Dialog brings
decades of experience to the rapid development of integrated circuits for power
management, audio, display processing and control. Dialog's processor companion
chips are essential for enhancing both the performance of hand-held products and
the consumers' 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 2008, it had more than $160 million in
revenue and was the fastest growing European public semiconductor company,
achieving a growth rate of more than 85%. It currently has approximately 300
employees. The company is listed on the Frankfurt (FWB: DLG) stock exchange.

Language: English
Company: Dialog Semiconductor Plc.
Tower Bridge House, St. Katharine's Way
E1W 1AA London
Großbritannien
Phone: +49 7021 805-412
Fax: +49 7021 805-200
E-mail: birgit.hummel@diasemi.com
Internet: www.diasemi.com
ISIN: GB0059822006
WKN: 927200
Indices: TecDAX
Listed: Regulierter Markt in Frankfurt (Prime Standard); Freiverkehr in Berlin, München, Düsseldorf, Stuttgart, Hamburg

Dialog Semiconductor
Birgit Hummel, +49 7021 805 412
Fax: +49 7021 805 200
birgit.hummel@diasemi.com
www.dialog-semiconductor.com

Copyright Business Wire 2009