High Linearity, Low Power Downconverting Mixer

The LT5525 is a low power broadband mixer optimized for high linearity applications such as point-to-point data transmission, high performance radios and wireless infrastructure systems. The device includes an internally 50Ω matched high speed LO amplifier driving a double-balanced active mixer core. An integrated RF buffer amplifier provides excellent LO-RF isolation. The RF input balun and all associated 50Ω matching components are integrated. The IF ports can be easily matched across a broad range of frequencies for use in a wide variety of applications.

The LT5525 offers a high performance alternative to passive mixers. Unlike passive mixers, which require high LO drive levels, the LT5525 operates at significantly lower LO input levels and is much less sensitive to LO power level variations.

*Operation over a wider frequency range is achievable with reduced performance. Consult factory for more information.

Applications

* Point-to-Point Data Communication Systems

* Wireless Infrastructure

* High Performance Radios

* High Linearity Receiver Applications

* Wide Input Frequency Range: 0.8GHz to 2.5GHz*

* Broadband LO and IF Operation

* High Input IP3: +17.6dBm at 1900MHz

* Typical Conversion Gain: –1.9dB at 1900MHz

* High LO-RF and LO-IF Isolation

* SSB Noise Figure: 15.1dB at 1900MHz

* Single-Ended 50Ω RF and LO Interface

* Integrated LO Buffer: –5dBm Drive Level

* Low Supply Current: 28mA Typ

* Enable Function

* Single 5V Supply

* 16-Lead QFN (4mm × 4mm) Package