FEATURES
n n n n n n n n n n n LT5527 400MHz to 3.7GHz 5V High Signal Level Downconverting Mixer DESCRIPTION
50Ω Single-Ended RF and LO Ports Wide RF Frequency Range: 400MHz to 3.7GHz* High Input IP3: 24.5dBm at 900MHz 23.5dBm at 1900MHz Conversion Gain: 3.2dB at 900MHz 2.3dB at 1900MHz Integrated LO Buffer: Low LO Drive Level High LO-RF and LO-IF Isolation Low Noise Figure: 11.6dB at 900MHz 12.5dB at 1900MHz Very Few External Components Enable Function 4.5V to 5.25V Supply Voltage Range 16-Lead (4mm × 4mm) QFN Package The LT®5527 active mixer is optimized for high linearity, wide dynamic range downconverter applications. The IC includes a high speed differential LO buffer amplifier driving a double-balanced mixer. Broadband, integrated transformers on the RF and LO inputs provide single-ended 50Ω interfaces. The differential IF output allows convenient interfacing to differential IF filters and amplifiers, or is easily matched to drive 50Ω single-ended, with or without an external transformer.
Linear Technology
