USB 2.0 OTG于消费类电子产品之应用NXP

简介：这次在线座谈会主要介绍能使各种外设直接交换数据的USB 2.0 OTG技术与飞利浦半导体公司的USB2.0 OTG架构,USB协议和各种USB2.0收发器的性能以及高速USB 2.0和OTG 完整解决方案与应用案例.

问：USB 2.0 OTG在视频传输中如何提高质量
答： There is a Video class specification available on USB.  This is common for OTG and normal USB.

问：Philips公司的解決方案與其它的方案相比有哪些特點及優點？
答： We are a total solution approach. We would support you in terms of hardware , software.

问：USB 2.0 OTG 和１.1　用法区别大吗？价格差别呢？
具体的应用样板有没有？怎么提供？
什么时候上市？
深圳地区的代理那家比较有助于快速实现？

答： USB 2.0 OTG is more complex by 2 - 3 times, Yes Philips do provide demo boards ready in the market.  Pls contact our Philips Sales Office in Shenzhen for disty enquiry.

问：目前很多的手机基带处理芯片并不支持USB2.0，如何实现呢？
答： 用PHILIPS 的ISP1761/ISP1762可以支持手机USB2.0解决方案.

问：USB需要外加CPU控制吧，其驱动程序是怎么烧入?谢谢
答： USB definitely needs a CPU, the cpu CAN BE Inside the single USB IC or it can be separate from the USB IC.

问：Can you tell me more detailed about the USB Hub controller, USB Host controller, USB Peripheral controller and USB transceiver?
答： Due to the fact that there is too much information to provide on this forum,
If you require more information on the host , hub , peripheral and transceiver , please visit www.usb.org for more information , or perhaps review the slides in this &nbs

问：How to select the cable for USB1.0, USB2.0 and USB2.0 OTG?
答： For USB 1.1 and USB2.0, the USB cable specification is the same. it means, you can use the same cable used in USB1.1 application on a USB2.0 application.
For OTG , the USB connector is different.

问：一个USB 2.0 OTG器件能否既做HOST，又做DEVICE？
答： Yes, that is actually what OTG means(dual-role).

问：有些手持设备用PC的USB口作为充电电源，这样长时期的大电流输出对USB口有无损伤？
答： 如果电流不超过0.5-1.0安倍,应该不会损伤USB口.

问：USB2.0与USB1.0是不是只是协议上的升级，在硬件方面有哪些改进？
答： USB 2.0 is a performant increase based on 1.0 and there is a major hardware added in the solution.  And the speed from 12mhz to 480mhz.