Atmel推出面向无源无钥门禁系统的驱动器和防盗基站

只看该作者 · 2015-11-29 20:54

Atmel于11月12日推出内置防盗基站的新一代4通道无源无钥门禁(PKE)线圈驱动器。全新Atmel ATA5291PKE线圈驱动器可扩展至8条低频(LF)通道，达到全球集成度最高水平，汽车制造商可将该最新的突破性技术应用于各类PKE应用中。

　　Atmel继续将最具创新意义的技术集成到一颗芯片上，使得汽车制造商能够轻松将该技术提供给客户。全新的Atmel ATA5291 PKE线圈驱动器将低频驱动器和防盗基站技术集成到一个微小的QFN-49封装中，从根本上去除了低频天线、独立的防盗基站模块以及外部晶振或谐振器。该全新器件可让汽车制造商降低系统总成本，并实现卓越的带外抑制性能，以确保防盗系统的可靠运行。器件还实现超过4米的天线作用距离，更长的作用距离让客户能够将其集成到车上任何一处的专用电子控制单元或车身控制模块中。

　　该全新器件拥有目前市场上速度最快的电流调节环，可提供更快、更可靠的钥匙定位。这些针对汽车无源无钥门禁(PKE)市场的全新器件直接与汽车电瓶相连，通过发射一个高强度的LF信号定位到位于车内(或车外)的车钥匙。随后，车钥匙通过一个超高频(UHF)信号向汽车发送一个经过加密的识别号来锁定或解锁车门，或始动引擎。

　　与市场上的其它器件有所不同的是，Atmel ATA5291PKE线圈驱动器是一个可编程的载体，用以减少电磁辐射(EMR)。该器件还内置一个可编程、并且包含灵活命令的指令缓冲器，用于分担主机控制器的工作负荷，并可在更长距离以及更低功耗下为消费者首次实现了一些增值功能，如欢迎灯、离开锁门等。

只看该作者 · 2015-11-29 21:05

好贴子啊大家不顶说不过去
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