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LT5511 - High Signal Level Upconverting Mixer

The LT5511 mixer is designed to meet the high linearity requirements of cable TV infrastructure downstream transmitters and wireless infrastructure transmit systems. The IC includes a differential LO buffer amplifier driving a double-balanced mixer. The LO, RF and IF ports can be easily matched to a broad range of frequencies for different applications. The high performance capability of the LO buffer allows the use of a single-ended source, thus eliminating the need for an LO balun.

The LT5511 mixer delivers +17dBm typical input 3rd order intercept point at 950MHz, and +15.5dBm IIP3 at 1900MHz, with IF input signal levels of – 5dBm. The input 1dB compression point is typically +6dBm.

Features Wide RF Output Frequency Range to 3000MHz Broadband RF and IF Operation +17dBm Typical Input IP3 (at 950MHz) +6dBm IF Input for 1dB RF Output Compression Integrated LO Buffer: -10dBm Drive Level Single-Ended or Differential LO Input Double-Balanced Mixer Enable Function Single 4.0V-5.25V Supply Voltage Range 16-Pin TSSOP Exposed Pad Package Typical Application

Applications CATV Downlink Infrastructure Wireless Infrastructure High Linearity Mixer Applications Packaging

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