Global Sources
EE Times-India
Stay in touch with EE Times India
 
EE Times-India > RF/Microwave
 
 
RF/Microwave  

Automotive bus transceiver supports FlexRay PHY spec

Posted: 26 Oct 2006     Print Version  Bookmark and Share

Keywords:austriamicrosystems  AS8221  bus transceiver  automotive  FlexRay 

austriamicrosystems has developed the AS8221 high-speed automotive bus transceiver that supports baud rates of up to 10Mbps, which the company claims is ten times the bandwidth available on a CAN-based network. It also supports the bus guardian interface, enabling fault tolerant and hard real-time applications.

With a differential bus voltage level of 1.3V and a time skew below 1ns, the AS8221 fully conforms to the FlexRay PHY specification.

Serving as the bi-directional interface between the FlexRay communication controller and the twisted pair copper wires, the AS8221 enables two-way communications with the MCU (FlexRay Host Controller) with full mode handling, including the low-power modes. The device also provides an extended diagnostic interface.

The AS8221 offers advanced bus-failure detection capabilities with the intelligent combination of bus-current measurement and logical comparators. A thermal sensor circuit with an integral shutdown mechanism prevents damage to the device in extreme temperatures. The symmetrical transient control for the high- and low-side driver for both the bus-minus and bus-plus line to balance communications over different network topologies.

The first generation of automotive-qualified AS8221 is available in a Pb-free SSOP20 package. Qualified samples of the next generation FlexRay Electrical PHY specification V2.1 Rev A will be available in December.

Pricing for the transceiver is Rs.300.37 ($6.50) per unit in quantities of 1,000.

- Ismini Scouras
eeProductCenter




Comment on "Automotive bus transceiver supports ..."
Comments:  
*  You can enter [0] more charecters.
*Verify code:
 
 
Webinars

Seminars

Visit Asia Webinars to learn about the latest in technology and get practical design tips.

 

Go to top             Connect on Facebook      Follow us on Twitter      Follow us on Orkut

 
Back to Top