MAX19993: Highest linearity, lowest noise SiGe mixer is optimized for the new 1500MHz WCDMA/LTE 3G and 4G base stations

Additionally, the MAX19993 offers an industry-best 2RF-2LO spurious rejection of 72dBc for an RF level of -10dBm, and 67dBc for a level of -5dBm. This mixer is designed specifically for 1500MHz WCDMA/LTE wireless-infrastructure applications in which high linearity and a low noise figure are critical for enhanced receiver sensitivity and blocker immunity.

As a complete SiGe downconverter, the MAX19993 integrates two state-of-the-art mixer cores; four amplifiers; three baluns; an LO switch, buffer, and splitter; and dozens of discrete components. The 6.4dB conversion gain enables the elimination of a complete IF amplifier stage within the receiver lineup. The outstanding 2RF-2LO performance also eases the filtering requirements of close-in harmonics, thus leading to simpler and more cost-effective filter designs. Through this combination of integration and performance, the MAX19993 reduces mixer solution size by a factor of 2x and the discrete part count by 45%.

The MAX19993 is packaged in a compact, 6mm x 6mm, 36-pin TQFN that is pin compatible with the MAX9985/MAX9995/MAX19985A and MAX19994A/MAX19995/MAX19995A series of 700MHz to 2200MHz dual mixers. It is pin similar to the MAX19997A/MAX19999 series of 1850MHz to 4000MHz dual mixers. This complete family of downconverters is ideal for applications in which a common PCB layout is used for multiple frequency bands. Prices for the MAX19993 start at $9.96 (1000-up, FOB USA).