NCN1154数据手册开发板套件编程器的评估演示板及套件规格书PDF

描述 Description

The NCN1154 is a DP3T switch for combined true-ground audio, USB 2.0 high speed data, and UART applications. It allows portable systems to use a single port to pass either USB data or audio signals from an external headset; the 3 channels being compliant to USB 2.0, USB 1.1 and USB 1.0. The switch is capable of passing signals with negative voltages as low as 2 V below ground. The NCN1154 features shunt resistors on the audio ports. These resistors are switched in when the audio channel is off and provide a safe path to ground for any charge that may build up on the audio lines. This reduces Pop & Click noise in the audio system. The device has an extended VCC range which can operate off VCC up to 4.2 V while passing true ground audio signals down to -2 V.

特性 Features

• 3:1 High Speed Switch
• Multiplexe audio or high speed data or UART signals path from a single USB receptacle
• 5.25 V tolerant on common pins
• Support any short to VBUS
• High Bandwidth of 820 MHz
• USB2.0, USB1.1, USB1.0 capable on all channels
• Capable of passing negative swing signals down to -2V on R/L channel
• Can connect an audio true ground amplifier to a micro USB headset
• 1.8 V compatible control pin
• GPIO Low Voltage Control
• Audio channel shunt resistors
• Pop and click noise reduction
• Ultra-low THD
• Minimal audio distortion

应用 Application

• Shared High Speed data or audio on a single connector
• Micro or Mini USB applications
• GPS
• Cellular and wireless phones
• Tablets and Portable gaming
• Bar Code Scanners

简介

NCN1154属于开发板套件编程器的评估演示板及套件。由制造生产的NCN1154评估和演示板及套件该系列产品提供了一种方便的方法，在经过验证的实施环境中评估某些重点器件的性能或特性。评估方法通常有完善的文档说明，并且视乎具体情况由评估软件提供支持。产品通常由印刷电路板组成，板上已装有重点器件以及必要或有用的支持元器件，另外也可能包括其他组件，例如电缆或电源。对于数量特别多或类别独特的器件类别(如 ADC、DAC 和开关模式电源)，评估平台可组合为一个单独的产品系列。