High-speed analog signal switches fit the latest handsets - Embedded.com

High-speed analog signal switches fit the latest handsets


The AS1741, AS1742, and AS1743 analog switches, developed by Austriamicrosystems, are suited for high-speed switching of audio, video, and data signals in portable devices like mobile phones, MP3, CD/DVD and video players, digital cameras, PDAs, and other handheld systems.

These high-speed, low-voltage, dual, single-pole/single-throw (SPST) analog switches offer a performance improvement over existing products. Switching time can be improved by over 40% while maintaining low on-resistance (Ron) flatness and channel matching. With the 130-MHz bandwidth, the devices can be used video and high-speed data signals. The supply voltage range from 1.6 to 3.6 V. All digital logic inputs are 1.8-V CMOS compatible.

The combination of very low power consumption, Ron (0.8 OHMS), and fast switching speed allows for switching of currents up to 250 mA. The first series of switches is available as two normally open (AS1741), two normally closed (AS1742), and a combination of one open and one closed switch (AS1743). The AS1741, AS1742 and AS1743 are available in 8-pin MSOP packages. For product specific information, go to www.austriamicrosystems.com/03products/01_analog_switches.htm.

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