High-Linearity 1700MHz to 2200MHz Down-Conversion Mixer with LO Buffer/Switch

The MAX9993 high-linearity down-conversion mixer provides 8.5dB of gain, +23.5dBm IIP3, and 9.5dB noise figure for UMTS, DCS, and PCS base-station applications.

The MAX9993 integrates baluns in the RF and LO ports, a dual-input LO selectable switch, an LO buffer, a double-balanced mixer, and a differential IF output amplifier. The MAX9993 requires a typical LO drive of +3dBm, and supply current is guaranteed to below 230mA.

The MAX9993 is available in a compact 20-pin thin QFN package (5mm x 5mm) with an exposed pad. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range.

The MAX9993 EV kit is available; contact the factory for more information.

Applications

* DCS1800 and EDGE Base Stations * Military Systems * PCS1900 Base Stations * Point-to-Point Microwave Systems * Private Mobile Radios (PMRs) * UMTS and 3G Base Stations * Wireless Local Loop (WLL)

* +23.5dBm Input IIP3

* 1700MHz to 2200MHz RF Frequency Range

* 40MHz to 350MHz IF Frequency Range

* 1400MHz to 2000MHz LO Frequency Range

* 8.5dB Conversion Gain

* 9.5dB Noise Figure

* Integrated LO Buffer

* Switch-Selectable (SPDT), Two LO Inputs

* Low 0 to +6dBm LO Drive

* 40dB LO1-to-LO2 Isolation