Maxim Integrated Products introduces the MAX19995, MAX19995A, MAX19997A and MAX19999 family of dual, downconverting mixers targeted specifically for DCS/PCS, cdma2000, WCDMA, WCS, LTE, WiMAX, and MMDS wireless-infrastructure applications. Together with the previously announced MAX19985A, these mixers provide complete downconverter solutions that address base-station applications spanning the 1700MHz to 4000MHz bands.

Designed using Maxim's proprietary SiGe process, each monolithic device delivers an unparalleled combination of linearity, noise performance, and component integration. These components provide up to 24.8dBm IIP3 linearity, up to 9dB of conversion gain, and an unparalleled 2RF-2LO spurious rejection of up to 79dBc. Noise figure values are also exceptionally low, with values reaching down to 9dB. Each of these parameters is critical for providing enhanced receiver sensitivity and blocker immunity.

As complete SiGe downconverters, the devices integrate two state-of-the-art mixer cores, four amplifiers, three baluns, an LO splitter, and dozens of discrete components. The devices' conversion gain enables the elimination of a complete IF amplifier stage within the receiver lineup. The outstanding 2RF-2LO and 2LO-2RF performance can also ease the filtering requirements of close-in harmonics, thus leading to simpler and more cost-effective filter designs.

Through this combination of integration and performance, these devices reduce downconverter solution size by a factor of 2x, and discrete part count by 45%. Each device is packaged in a compact, 6mm x 6mm, 36-pin TQFN that is pin similar to the existing MAX9985, MAX19985A, and MAX9995 series of 700MHz to 2200MHz dual mixers. The entire family of dual downconverters is ideal for applications in which a common PCB layout is used for multiple frequency bands. Prices start at $9.96 (1000-up, FOB USA).