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

Description

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.