High-linearity, up- and down-converter fits 2.5/3G basestations - Embedded.com

High-linearity, up- and down-converter fits 2.5/3G basestations

The MAX2031 is a high-performance, fully integrated, 815- to 1000-MHz SiGe passive mixer. This single IC provides 36 dBm of IIP3, 27 dBm of IP1dB, 7dB of noise figure, and a conversion loss of 7 dB. In addition, Maxim's MAX2031 exhibits excellent 2nd- and 3rd-order spurious suppression. Designed specifically for 2.5G/3G wireless-infrastructure applications, the MAX2031 is suited for WCDMA, GSM850/GSM900 EDGE, cdma2000, and iDEN basestations where high linearity and low noise are critical for enhanced receiver and transmitter performance. The device offers a wide dc to 250 MHz intermediate frequency range with a 960- to 1180-MHz high-side LO injection range.

As a complete SiGe up- and down-converter, the MAX2031 integrates a state-of-the-art double-balanced mixer core with an LO amplifier, two baluns, an LO switch, plus dozens of discrete components. This integration reduces the total board space used by the mixer by a factor of 2.5x, and reduces the discrete part count by 33%.

The MAX2031 comes in a 5- by 5-mm, 20-pin thin QFN. Lead-free packaging is available. Prices start at $6.15, in lots of 1000. A datasheet is available at www.maxim-ic.com/PRGraphics/PRPDF/MAX2031DS.pdf.

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