16 Mar 2005 | Geneva

STMicroelectronics Introduces the 2x1W Stereo Amplifier for Portable Applications

Very low standby current reduces battery drain
Geneva / 16 Mar 2005


Geneva, March 16, 2005 — 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.

Further information is available at www.st.com/stdlinear

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 www.st.com.

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