MAX19997A Datasheet | Maxim Integrated

19-4288; Rev 0; 10/08 .. Dual, Si Ge High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer General Description The MAX19997A dual downconversion mixer is a versatile, highly integrated diversity downconverter that provides high linearity and low noise figure for a multitude of 1800MHz to 2900MHz base-station applications. The MAX19997A fully supports both low- and high-side LO injection architectures for the 2300MHz to 2900MHz Wi MAX ™ , LTE, WCS, and MMDS bands, providing 8.7d B gain, +24d Bm input IP3, and 10.3d B NF in the low-side configuration, and 8.7d B gain, +24d Bm input IP3, and 10.4d B NF in the high-side configuration. Highside LO injection architectures can be further extended down to 1800MHz with the addition of one tuning element (a shunt inductor) on each RF port. The device integrates baluns in the RF and LO ports, an LO buffer, two double-balanced mixers, and a pair of differential IF output amplifiers. The MAX19997A requires a typical LO drive of 0d Bm and a supply current guaranteed below 420m A to achieve the targeted linearity performance. The MAX19997A is available in a pact 6mm x 6mm, 36-pin thin QFN lead-free package with an exposed pad. Electrical performance is guaranteed over the extended temperature range, from TC = -40°C to +85°C. Features o 1800MHz to 2900MHz RF Frequency Range o 1950MHz to 3400MHz LO Frequency Range o 50MHz to 500MHz IF Frequency Range o Supports Both Low-Side and High-Side LO Injection o 8.7d B Conversion Gain o +24d Bm Input IP3 o 10.3d B Noise Figure o +11.3d Bm Input 1d B pression Point o 70d Bc Typical 2 x 2 Spurious Rejection at PRF = -10d Bm o Dual Channels Ideal for Diversity Receiver Applications o Integrated LO Buffer o Integrated LO and RF Baluns for Single-Ended Inputs o Low -3d Bm to +3d Bm LO Drive o Pin patible with the MAX19999 3000MHz to 4000MHz Mixer o Pin Similar to the MAX9995/MAX9995A and MAX19995/MAX19995A 1700MHz to 2200MHz Mixers and the MAX9985/MAX9985A and...