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austriamicro unveils its first low-voltage LVDS ICs

Posted: 18 Jul 2006     Print Version  Bookmark and Share

Keywords:austriamicrosystems  quad LVDS  AS1150-52 

austriamicro's new LVDS chips

austriamicrosystems has unveiled the first products in its family of low-voltage differential signalling (LVDS) ICs. Suitable for applications requiring high-speed data transmission, such as digital copiers, laser printers, cell phone base stations, telecom switches, and network switches/routers, the AS1150-52 quad ICs halve the supply current of competing products, the company said, improving the power consumption of LVDS interfaces.

Offering a data rate of up to 500Mbps, the AS1150/51 receivers consume a supply current of only 5mA while the AS1152 driver consumes just 4mA.

"In typical applications the LVDS transmission improves noise immunity of data signals, by converting single ended signals into LVDS signals. In applications where electrical disturbances cannot be avoided and high data rates are needed, LVDS is the signalling technology of choice, offering superior breakdown immunity and error-free data transmission," said Walter Moshammer, marketing director for standard linear at austriamicro. "LVDS signal transmission reduces EMI, and is therefore ideal in applications sensitive to electrical disturbances."

Each AS1150/51 receiver accepts four LVDS input signals conforming to the ANSI TIA/EIA-644 LVDS standard, and converts them to low-voltage LVTTL/LVCMOS output levels. The AS1151 features integrated termination, the company said, which cuts component count and saves board space by eliminating the need for four external resistors. The AS1152 driver converts four low-voltage LVTTL/LVCMOS signals into LVDS output signals conforming to the ANSI TIA/EIA-644 LVDS standard. Designed with flow-through pin-out, austriamicro said AS1150-52 family reduces crosstalk between channels and simplifies PCB layout.

With a tiny pulse skew of 300ps for the receivers and 350ps for the driver, the devices are suitable for high-resolution imaging and high-speed interconnection applications. With the enable input, all four out- and input pins are set to a high-impedance state, which reduces power consumption to only 0.3mA for AS1150/51 and to 3.5mA for the driver.

Guaranteed to work in a temperature range of -40°C to 85°C, the AS1150-52 quad LVDS family operates from a single 3.3V supply, and is available in a 16-pin TSSOP package.

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