ADL5385開發(fā)板套件編程器的射頻評估開發(fā)套件開發(fā)板規(guī)格書PDF中文資料

ADL5385屬于開發(fā)板套件編程器的射頻評估開發(fā)套件開發(fā)板。由亞德諾半導體技術有限公司制造生產的ADL5385射頻評估和開發(fā)套件，開發(fā)板本系列中的產品適用于在已知實施環(huán)境中，提供能訪問射頻相關器件的功能或者有助于訪問該功能。所含的焦點產品范圍從射頻信號鏈元器件（如放大器和檢測器）到模塊化收發(fā)器，以及不直接包含焦點產品的適配器硬件，但此類硬件可供方便地訪問用戶單獨提供的特定射頻產品或系列。

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.