Abstract: This application note is a supplement to two previous application notes, which effectively extend the usage of the parallel-port, 2-wire hardware (presented in AN3230) and software (presented in AN3315) to computers operating on ...

摘要：數(shù)字電位器(數(shù)字可變電阻或digipot)常常用于音量控制。音頻系統(tǒng)中，音量衰減應(yīng)遵循人耳的響應(yīng)特性，按照對數(shù)規(guī)律變化。在一些設(shè)計中，會使用簡單的低成本線性電位器取...

摘要：本應(yīng)用筆記介紹一種可自動實現(xiàn)立體聲音頻衰減器的系統(tǒng)。MAXQ3210低功耗16位RISC微控制器是系統(tǒng)控制器，它產(chǎn)生各種時序間隔，驅(qū)動音頻信號逐漸衰減，以靜音狀態(tài)結(jié)束。使用...

Abstract: The application note describes using a digital potentiometer, passive components such as resistors and capacitors, and an operational amplifier to build a digitally controlled phase-shift circuit. Although written specifically fo...

Abstract: In some electronic systems, a DC offset voltage at the inputs will contribute a significant error to the output. This is especially true in high gain configurations. An offset adjustment circuit can be added to "null" out the off...

Variable gain amplifiers often use a mechanical potentiometer to set the gain. An example is a volume control dial. However, when the analog signal path is digitally controlled, a digital potentiometer might be used to control gain. This a...

摘要：本應(yīng)用筆記介紹一種可自動實現(xiàn)立體聲音頻衰減器的系統(tǒng)。MAXQ3210低功耗16位RISC微控制器是系統(tǒng)控制器，它產(chǎn)生各種時序間隔，驅(qū)動音頻信號逐漸衰減，以靜音狀態(tài)結(jié)束。使用...

Abstract: The purpose of this application note is to show how to apply a temperature offset to the factory calibrated temperature sensor reading of the DS1859. IntroductionThe purpose of this application note i...

摘要：數(shù)字可調(diào)節(jié)電位器，也稱為數(shù)字電位器或digpot，不僅能夠在眾所周知的音頻應(yīng)用中替代機械電位器，而且能夠在所有電子設(shè)備中替代傳統(tǒng)的機械電位器。作為模/數(shù)轉(zhuǎn)換器(DAC)...

Abstract: This application note explains the internal calibration procedure for the DS1856, and how using this function can be beneficial to the application. The application note also provides procedures for determining and implementing th...

山寨無敵之 可以直插USB的另類手機 今天為大家介紹的這款手機有著鮮明的特點，造型非常另類，好似某種科幻故事中的飛船方向盤，中間是圓形的屏幕，左右兩側(cè)各有...

摘要：當(dāng)使用DC-DC轉(zhuǎn)換器時，設(shè)計者都要面對一個相同問題：只能得到標(biāo)準(zhǔn)電壓。如果需要校準(zhǔn)或者調(diào)節(jié)輸出電壓，就需要高精度的非標(biāo)準(zhǔn)電阻。本應(yīng)用筆記介紹了在升壓型DC-DC轉(zhuǎn)換...

Abstract: This application note presents parts designed for fiber monitoring and optical control. Although the products have a broad range of capabilities, some of those features are most important for the optical control and monitoring ma...

摘要：RF衰減是無線設(shè)計中的常見電路，本應(yīng)用筆記詳細(xì)描述了幾種采用PIN二極管和電流源DAC控制RF衰減的方法。 PIN二極管通常作為TV調(diào)諧器中的RF信號以及固定通信設(shè)...

摘要：本文描述了如何將DS1862 XFP控制和數(shù)字診斷IC與內(nèi)置平均功率控制(APC)環(huán)路的激光驅(qū)動器連接。多數(shù)內(nèi)置APC環(huán)路的激光驅(qū)動器均要求電壓模式接口。本文說明了如何產(chǎn)生這些電壓...

摘要：MAXQ2000可采用不同的時鐘模式與MAX1132接口，包括8位、16位或兩者組合。本應(yīng)用筆記說明了如何選擇SPI™時鐘模式，以優(yōu)化MAX1132性能。該應(yīng)用筆記包含了完整的原理圖、微控...

摘要：本應(yīng)用筆記簡I²C總線的驗證及實現(xiàn)單回顧了I²C總線的發(fā)展進(jìn)程，并介紹了I²C配置，以簡化總線上主機與從機之間的通信。應(yīng)用實例提供了原理圖和程序代碼，附錄1...

使用DS4424以保...

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Abstract: A simple, traditional method of powering white light-emitting-diodes (LEDs) with fixed bias voltage and ballast resistors result in poor brightness matching between LEDs. This is due to wide LED forward voltage variation, sometim...