SparkFun Differential I2C Breakout – PCA9615 (Qwiic) 延長距離的絕佳解決方案並降低噪音

描述

SparkFun Differential I2C Breakout – PCA9615 (Qwiic) IIC 中繼延長 訊號濾波器

SparkFun差分 I2C 擴展模組是擴展 I2C 通信總線範圍的最快，最簡單的方法。模組使用了恩智浦的 PCA9615 IC，它將兩個默認的I2C 信號轉換為四個差分信號，兩個用於SCL，兩個用於SDA。差分信號通過以太網電纜 RJ-45 發送，該以太網電纜通過板載RJ-45連接器連接到分支。差分信號允許I ² C信號達到100英尺的距離。同時仍保持其信號完整性！為了使您的閱讀更加輕鬆，所有通信均通過I ²專門進行C，利用我們方便的Qwiic系統，因此無需焊接即可將其連接到系統的其餘部分。但是，如果您更喜歡使用麵包板，我們仍然會斷開0.1英寸間距的插針。

差分 I2C Breakout 的簡單性是其最大的吸引力之一。其他 I2C 通信方法要求將 I2C 通信打包為另一個協議，例如RS-485或1-Wire。但是，PCA9615 通過利用差分收發器來保持 I2C 協議。

無論您是需要在飽受電機噪聲困擾的自動駕駛汽車上擴展I ² C傳感器的範圍，還是想在家庭或辦公室中建立龐大的傳感器網絡，Qwiic Differential  I2C  Breakout都是延長距離的絕佳解決方案並降低噪音敏感性。

硬體規格與特色

• 使用PCA9615緩衝器
• I2C/IIC 電源電壓範圍2.3-5.5V
• 差分電源電壓範圍3-5.5V
• 消耗16µA電流
• 將 I2C 總線擴展到100英尺
• 數據速率高達400kHz
• 2個 Qwiic 連接器

SparkFun Differential I2C Breakout – PCA9615 (Qwiic)

The SparkFun Differential I²C Breakout is the fastest and easiest way to extend the range of your I²C communication bus. The breakout uses NXP’s PCA9615 IC, which converts the two default I²C signals into four differential signals, two for SCL and two for SDA. The differential signals are sent over an Ethernet cable, which attaches to the breakout through the on-board RJ-45 connectors The differential signaling allows the I²C signals to reach distances of up to 100ft. while still maintaining their signal integrity! To make it even easier to get your readings, all communication is enacted exclusively via I²C, utilizing our handy Qwiic system so no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1″-spaced pins in case you prefer to use a breadboard.

The simplicity of the Differential I²C Breakout is one of its biggest appeals. Other I²C communication methods require packetizing I²C communication into another protocol, be it RS-485 or 1-Wire. However, the PCA9615 keeps the I²C protocol by utilizing a differential transceiver.

Whether you need to extend the range of an I²C sensor on an autonomous vehicle plagued with noise from motors or want to create a vast sensor network in your home or office, the Qwiic Differential I²C Breakout is a great solution to extend distance and reduce noise susceptibility.

Features

• Uses the PCA9615 buffer
• I²C Supply voltage range 2.3-5.5V
• Differential Supply voltage range 3-5.5V
• draws 16µA of current
• Extends I²C bus up to 100 feet
• Data rate up to 400kHz
• 2x Qwiic Connectors