Dual Channel High IP3 100 MHz TO 6 GHz Active Mixer
The ADL5802 uses high linearity, double-balanced, active mixer cores with integrated LO buffer amplifiers to provide high dynamic range frequency conversion from 100 MHz to 6 GHz. The mixers benefit from a proprietary linearization architecture that provides enhanced input IP3 performance when subject to high input levels. A bias adjust feature allows the input linearity, SSB noise figure, and dc current to be optimized using a single control pin. The high input linearity allows the device to be used in demanding cellular applications where in-band blocking signals may otherwise result in degradation in dynamic performance. The balanced active mixer arrangement provides superb LO to RF and LO to IF leakage, typically better than −30 dBm.
The IF outputs are designed for a 200 Ω source impedance and provide a typical voltage conversion gain of 7.6 dB when loaded into a 200 Ω load.
The ADL5802 is fabricated using a SiGe high performance IC process. The device is available in a compact 4 mm × 4 mm, 24-lead LFCSP package and operates over a −40°C to +85°C temperature range. An evaluation board is also available.
Data Sheet, Rev 0, 11/2009
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ADL5802-EVALZ is a fully populated, 4-layer evaluation board fabricated using the Rogers RO 3003 material and is powered by a single supply in the 4.75 V to 5.25 V range. The RF, LO and IF ports are configured for single-ended signaling via a balun transformer. The board provides smaller balun footprints for evaluation at higher frequencies. In addition, the board offers the capability to configure bias settings, IF filtering and matching schemes.
Recommended RF/IF Differential Amplifiers
- For ultralow distortion and adjustable gain with external resistor , we recommend the AD8352 .
- For adjustable gain with external resistor , we recommend the AD8351 .
- For a differential input/output IF VGA , we recommend the AD8370, AD8375 or the ADL5336 .
- For ultralow distortion, pin strappable gain adjust , we recommend the ADL5561 .