MAX19994A Datasheet | Maxim Integrated

.. 19-5197; Rev 0; 4/10 Dual, Si Ge, High-Linearity, 1200MHz to 2000MHz Downconversion Mixer with LO Buffer/Switch General Description The MAX19994A dual-channel downconverter is designed to provide 8.4d B of conversion gain, +25d Bm input IP3, +14d Bm 1d B input pression point, and a noise figure of 9.8d B for 1200MHz to 2000MHz diversity receiver applications. With an optimized LO frequency range of 1450MHz to 2050MHz, this mixer supports both high- and low-side LO injection architectures for the 1200MHz to 1700MHz and 1700MHz to 2000MHz RF bands, respectively. In addition to offering excellent linearity and noise performance, the device also yields a high level of ponent integration. This device includes two double-balanced passive mixer cores, two LO buffers, a dual-input LO selectable switch, and a pair of differential IF output amplifiers. Integrated on-chip baluns allow for singleended RF and LO inputs. The MAX19994A requires a nominal LO drive of 0d Bm and a typical supply current of 330m A at VCC = 5.0V, or 264m A at VCC = 3.3V. The MAX19994A is pin patible with the MAX9985/ MAX9995/MAX19985A/MAX19993/MAX19995/ MAX19995A series of 700MHz to 2500MHz mixers and pin similar with the MAX19997A/MAX19999 series of 1850MHz to 4000MHz mixers, making this entire family of downconverters ideal for applications where a mon PCB layout is used across multiple frequency bands. The device is available in a 6mm x 6mm, 36-pin thin QFN package with an exposed pad. Electrical performance is guaranteed over the extended temperature range, from TC = -40NC to +85NC. Features S 1200MHz to 2000MHz RF Frequency Range S 1450MHz to 2050MHz LO Frequency Range S 50MHz to 500MHz IF Frequency Range S 8.4d B Typical Conversion Gain S 9.8d B Typical Noise Figure S +25d Bm Typical Input IP3 S +14d Bm Typical Input 1d B pression Point S 68d Bc Typical 2LO - 2RF Spurious Rejection at PRF = -10d Bm S Dual Channels Ideal for Diversity Receiver Applicatio...