基于ADL5354設計的高性能RF混頻方案

ADL5354是高度線性雙平衡(RF和LO平衡)RF混頻器,輸入頻率從2300 MHz 到2900 MHz.平衡的無源混頻器具有良好的LO-RF泄漏,優于-35dBm.IF頻率范圍從30MHz到450MHz,功率轉換增益8dB,單邊帶(SSB)噪音10dB,輸入IP3為25dBm,輸入P1為11dBm,LO典型驅動為0dBm.工作電壓3.3V-5.0V,主要用在蜂窩無線基站接收器,無線鏈接下變換器等.本文介紹ADL5354主要特性,方框圖以及典型應用,評估板電路圖和元件配置表.



ADL5354主要特性:

RF frequency range of 2300 MHz to 2900 MHz

IF frequency range of 30 MHz to 450 MHz

Power conversion gain: 8 dB

SSB noise figure of 10 dB

Input IP3 of 25 dBm

Input P1dB of 11 dBm

Typical LO drive of 0 dBm

Single-ended, 50 Ω RF and LO input ports

High isolation SPDT LO input switch

Single-supply operation: 3.3 V to 5 V

Exposed paddle, 6 mm × 6 mm, 36-lead LFCSP

ADL5354應用:

Cellular base station receivers

Transmit observation receivers

Radio link downconverters


圖1.ADL5354功能方框圖

圖2.ADL5354典型應用電路圖

圖3.ADL5354評估板電路圖