STMicroelectronics Introduces the 2x1W Stereo Amplifier for Portable Applications

Very Low Standby Current Reduces Battery Drain

GENEVA, March 14 /PRNewswire-FirstCall/ -- STMicroelectronics (NYSE: STM) has developed a high-quality stereo audio amplifier for use in cellular mobile phones, notebooks, PDAs, LCD monitors, TVs and portable audio devices. This device adds to a fast-growing portfolio of audio amplifiers dedicated to providing high-end audio capability to portable, low power-consumption applications.

The TS4984 delivers 1W per channel of continuous RMS output power at 5V into 8-ohm loads, with THD+N under 1%. It operates from 2.2 to 5.5V.

With an excellent SNR of 100dB(A) (typ.), and a power supply rejection ratio of 62dB at 217Hz with grounded inputs, this audio amplifier provides a high quality audio signal for the smallest of portable devices. Dedicated circuitry guarantees virtually no 'pop' and 'click' at power-on or power-off.

An external standby mode control reduces the supply current to less than 10nA for each channel. The device also has thermal shutdown protection. External resistors set the gain of each channel.

It is available in a QFN16 4x4 mm, 0.5mm pitch, lead-free package. Pricing is US$ 0.90 in quantities of 5K units.

  This press release is also available at:

... and includes links to further information on this product and ST's complete range of standard linear ICs.

About STMicroelectronics

STMicroelectronics is a global leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivalled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence markets. The Company's shares are traded on the New York Stock Exchange, on Euronext Paris and on the Milan Stock Exchange. In 2004, the Company's net revenues were $8.76 billion and net earnings were $601 million. Further information on ST can be found at

  For further information, please contact


   Stanley March
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   Investor Relations
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   Fax: +1.212.821.89.23
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   Fabrizio Rossini
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   Benoit de Leusse
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CONTACT: Investor Relations: Stanley March, Vice President,
+1-212-821-89-39, Fax, +1-212-821-89-23, Email Contact, Fabrizio Rossini,
Senior Manager, +41-22-929-69-73, Fax, +41-22-929-69-61,
Email Contact, or Benoit de Leusse, Director, +41-22-929-58-12,
Fax, +41-22-929-69-61, Email Contact; or Media Relations: Maria
Grazia Prestini, Director, Corporate Media Relations, +41-2-29-29-69-45,
Fax, +41-2-29-29-69-50, Email Contact, or Michael Markowitz,
Director, U.S. Media Relations, +1-212-821-8959, Fax, +1-212-821-8922,
Email Contact, all of STMicroelectronics

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