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LTC5542 - 1.6GHz to 2.7GHz High Dynamic Range Downconverting Mixer

The LTC5542 is part of a family of high dynamic range, high gain, passive downconverting mixers covering the 600MHz to 4GHz frequency range. The LTC5542 is optimized for 1.6GHz to 2.7GHz RF applications. The LO frequency must fall within the 1.7GHz to 2.5GHz range for optimum performance. A typical application is a LTE or WiMAX receiver with a 2.3GHz to 2.7GHz RF input and low-side LO.

The LTC5542 is designed for 3.3V operation, however; the IF amplifier can be powered by 5V for the highest P1dB. An integrated SPDT LO switch with fast switching accepts two active LO signals, while providing high isolation.

The LTC5542’s high conversion gain and high dynamic range enable the use of lossy IF filters in high-selectivity receiver designs, while minimizing the total solution cost, board space and system-level variation.

Features Conversion Gain: 8dB at 2.4GHz IIP3: 26.8dBm at 2.4GHz Noise Figure: 9.9dB at 2.4GHz 17.3dB NF Under +5dBm Blocking High Input P1dB 3.3V Supply, 660mW Power Consumption Shutdown Pin 50Ω Single-Ended RF and LO Inputs LO Inputs 50Ω Matched when Shutdown High Isolation LO Switch 0dBm LO Drive Level High LO-RF and LO-IF Isolation Small Solution Size 20-Lead (5mm × 5mm) QFN package Typical Application

Applications Wireless Infrastructure Receivers (LTE, W-CDMA. TD-SCDMA, WiMAX, GSM1800) Point-to-Point Microwave Links High Dynamic Range Downmixer Applications Packaging

Demo Boards