LT5511 Datasheet

• 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

• CATV Downlink Infrastructure
• Wireless Infrastructure
• High Linearity Mixer Applications

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.