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RF Mixer serves apps up to 3GHz

Posted: 24 Jun 2005 ?? ?Print Version ?Bookmark and Share

Keywords:analog devices? adi? adl5350? rf mixer?

Analog Devices Inc. (ADI) debuted the ADL5350 RF mixer that offers industry-leading linearity over a broad frequency range up to 3GHz for both up- and down-conversion applications.

Within any wireless application, the RF mixer stage converts the signal from its original radio frequency to an IF. During this process, flexibility in selecting the intermediate frequency and high dynamic range are important as these features ease filtering and external blockers, producing cleaner radio transmissions. When selecting an RF mixer, designers must make many trade-offs between performance, flexibility of IF selection, size, power consumption, integration and cost. By delivering high linearity, very low power consumption, and high integration in a miniature package, the new RF mixer reduces board space and cost while enabling designers to achieve high levels of performance. It is well suited for use in 2G and 3G cellular base station designs requiring high sensitivity and blocker immunity.

Serving applications up to 3GHz, the device provides high input linearity, with an input third-order intercept (IIP3) of 26dBm, and an input compression point of 17dBm at 900MHz, and a noise figure of -6dB. It integrates an on-chip LO buffer amplifier, eliminating the need for an external LO driver.

Operating from a 3Vdc to 5Vdc supply and consuming 16mA of supply current, the device is housed in a 3-by-2mm LFCSP (lead frame chip scale package), making it suitable for portable applications.

The ADL5350 is already sampling, with production quantities scheduled for October 2005, and is priced at $2.35 per unit in 1,000-piece quantities.

- Janine Love


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