ADL5385開(kāi)發(fā)板套件編程器的射頻評(píng)估開(kāi)發(fā)套件開(kāi)發(fā)板規(guī)格書(shū)PDF中文資料

ADL5385屬于開(kāi)發(fā)板套件編程器的射頻評(píng)估開(kāi)發(fā)套件開(kāi)發(fā)板。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的ADL5385射頻評(píng)估和開(kāi)發(fā)套件，開(kāi)發(fā)板本系列中的產(chǎn)品適用于在已知實(shí)施環(huán)境中，提供能訪問(wèn)射頻相關(guān)器件的功能或者有助于訪問(wèn)該功能。所含的焦點(diǎn)產(chǎn)品范圍從射頻信號(hào)鏈元器件（如放大器和檢測(cè)器）到模塊化收發(fā)器，以及不直接包含焦點(diǎn)產(chǎn)品的適配器硬件，但此類(lèi)硬件可供方便地訪問(wèn)用戶(hù)單獨(dú)提供的特定射頻產(chǎn)品或系列。

INTRODUCTION

The in-phase and quadrature modulator (IQ modulator) is a key component in modern wireless transmitters. It provides a convenient method for modulating data bits or symbols onto an RF carrier. IQ upconversion has become the architecture of choice for implementing transmitter signal chains for end applications such as cellular, WiMAX, and wireless point-topoint. IQ modulators, however, can degrade signal fidelity in ways that are somewhat unique. These effects can degrade the quality of the transmitted signal during the modulation process, resulting in degraded error vector magnitude (EVM) at the receiver, which in turn degrades bit error rate (BER). Fortunately, algorithms exist that can correct these imperfections.