基于ADL5354设计的高性能RF混频方案

ADL5354是高度线性双平衡(RF和LO平衡)RF混频器,输入频率从2300 MHz 到2900 MHz.平衡的无源混频器具有良好的LO-RF泄漏,优于-35dBm.IF频率范围从30MHz到450MHz,功率转换增益8dB,单边带(SSB)噪音10dB,输入IP3为25dBm,输入P1为11dBm,LO典型驱动为0dBm.工作电压3.3V-5.0V,主要用在蜂窝无线基站接收器,无线链接下变换器等.本文介绍ADL5354主要特性,方框图以及典型应用,评估板电路图和元件配置表.

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应用:

Cellular base station receivers

Transmit observation receivers

Radio link downconverters


图1.ADL5354功能方框图

图2.ADL5354典型应用电路图

图3.ADL5354评估板电路图

ADL5354评估板元件配置表:


图4.ADL5354评估板顶层布局图