摘要：本文對2階交調(diào)點(diǎn)(IP2)以及2x2雜散響應(yīng)進(jìn)行了詳細(xì)說明，這兩個(gè)參數(shù)在RF器件規(guī)格書中經(jīng)常出現(xiàn)，如混頻器。本文有助于讀者掌握IP2...

Abstract: The DS1851 is a dual 8-bit digital-to-analog converter (DAC) which also contains dual independent 40-byte look-up tables (LUTs) and an internal digital temperature sensor. Its original application was the temperature compensation...

Abstract: In 1975 the Federal Communications Commission (FCC), the government agency that regulates radio frequency (RF) emissions in the United States, enacted new regulations called FCC Part 15. These were not directed at controlling equ...

Abstract: To understand how common-mode signals are created and then suppressed, you should first understand the interaction of shields and grounds in common cable configurations. The following discussion defines a common-mode signal, revi...

Abstract: This application note will describe what is needed to design a T3/E3/STS-1 Fiber to Copper Media Converter. Such a device will take the copper signal and convert it to an optical signal to be transported over a fiber link. A pair...

Abstract: A handful of components are integrated into a circuit that creates a high-quality random data stream that generates eye diagrams up to 62.5MHz. The circuit diagram and eye diagram are shown. The eye diagram, one...

Abstract: A shunt regulator provides a constant reference voltage across a digital potentiometer that, in conjunction with an op amp and transistor, forms a software-programmable, voltage-controlled current source. With t...

Abstract: An unorthodox application of a pair of MOSFET-driver ICs and a ferrite-bead transformer yields a single-channel, isolated digital-signal coupler. Optocouplers are the usual choice for coupling digital signals be...

摘要：無源雙平衡混頻器由場效應(yīng)管和二極管組成，可以在蜂窩基站收發(fā)器中作為上變頻器或下變頻器。高線性度(IP3)、低噪聲及無雜散響應(yīng)的上/下變頻器需要低電平本振信號，可...

摘要：該應(yīng)用筆記討論如何利用MAX2016 RF檢測器實(shí)現(xiàn)超外差收發(fā)器的增益自動測量。本文比較了三種方案的性能和測量精度：增益測量和校準(zhǔn)，具有失調(diào)修正的增益測量和具有失調(diào)、...

摘要：本應(yīng)用筆記闡述了欠采樣接收機(jī)的系統(tǒng)級重要參數(shù)，并提供了設(shè)計(jì)人員確定這些性能參數(shù)所需要的各種方法，這些參數(shù)包括滿量程范圍、小信號噪聲底、信噪比和無雜散動態(tài)...

摘要：自動抄表技術(shù)為電表提供一個(gè)通信端口，以電子方式遠(yuǎn)程讀取數(shù)值。本應(yīng)用筆記討論Maxim RS-485收發(fā)器的不同特性，這些特性使RS-485收發(fā)器非常適合用于電表通信端口。 ...

摘要：本文討論了最新設(shè)計(jì)的端口擴(kuò)展器功能，這些功能與空間受限、成本敏感的折疊手機(jī)設(shè)計(jì)密切相關(guān)。以MAX6966和 MAX6965驅(qū)動器為例論述了GPIO端口擴(kuò)展器技術(shù)。 ...

摘要：本文是對HFRD-16.0參考設(shè)計(jì)：1Gbps至4.25Gbps有源SFP銅纜組件的補(bǔ)充。說明了DS28CZ04在有源銅纜SFP組件中作為串行控制接口的使用，建議讀者查找一些相關(guān)的參考設(shè)計(jì)，以便對本文...

摘要：任何通用的RF器件,不論是混頻器、放大器、隔離器或其它器件，其鄰道泄漏比(ACLR)都受器件三階互調(diào)失真(IM3)的影響?？赏茖?dǎo)出器件的IM3與三階輸出交調(diào)截點(diǎn)(OIP3)之間的關(guān)系。...

摘要：該篇應(yīng)用筆記給出了多個(gè)具有多路輸入或集成內(nèi)插濾波器的高速復(fù)用數(shù)模轉(zhuǎn)換器(DAC)的同步方法。這樣的DAC用于I/Q上變頻器或數(shù)字波束成形發(fā)射器中。這些DAC可提供數(shù)據(jù)時(shí)鐘輸...

摘要：隨著接收機(jī)數(shù)字化程度的提高，模擬信號至數(shù)字域的轉(zhuǎn)換成為提高通信設(shè)備動態(tài)性能的關(guān)鍵。本文詳細(xì)討論了為通信設(shè)備選擇適當(dāng)?shù)男盘栒{(diào)理及轉(zhuǎn)換器件時(shí)需要考慮的關(guān)鍵參...

摘要：工作在工業(yè)、科學(xué)及醫(yī)療(ISM)波段，頻率范圍為260MHz至470MHz的近距離無線通信已廣泛用于遙控?zé)o鑰匙門禁系統(tǒng)(RKE)、家庭安防和遙控裝置。無線發(fā)射器的一個(gè)關(guān)鍵參數(shù)是通過天...

摘要：MAX4007是一款高精度、高邊、高壓電流監(jiān)測器，設(shè)計(jì)用于監(jiān)測光纖系統(tǒng)光電二極管的電流。該應(yīng)用筆記描述了一種在GPON突發(fā)模式工作中提高M(jìn)AX4007響應(yīng)時(shí)間的簡易方法。 ...

使用DS4402/D...