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Pulse Electronics debuts chokes for car networks

Posted: 19 Jun 2014     Print Version  Bookmark and Share

Keywords:Pulse Electronics  choke  automotive network  BroadR-Reach  AEC-Q200 

Pulse Electronics Corp. has rolled out the HOT ROD product family of I-Bar chokes for automotive networks to offer EMC/EMI protection for automotive electronics. The chokes are aimed to meet Broadcom's BroadR-Reach Automotive Ethernet technology for mode conversion up to 400MHz. The first part in the series, the AE2000, meets the need for the current generation of 100Mb/s BroadR-Reach automotive Ethernet transceivers.

The HOT ROD AE20xx family of small-sized (4.5 x 3.2 x 2.8mm) SMD components has been approved by the Automotive Electronics Council (AEC) to meet the reliability criteria of AEC-Q200. The AE20xx family of devices is smaller and lighter in weight than Pulse Electronics' HM6902NL chokes, used in digital camera networks supporting BroadR-Reach technology. AEC-Q200 is a stringent series of stress and accelerated life testing required by the automotive industry for high reliability components. The AE20xx products are especially suited for use in a confined space. They have an operating temperature range of -40°C to 125°C. A high temperature capability is needed for use particularly on the outside of a vehicle, such as for a camera unit in the fenders, bumpers and on wing mirrors.

I-Bar chokes

AE20xx chokes are used for noise suppression on Ethernet-based networks transmitting data, video and voice over a single unshielded twisted pair within a vehicle. These networks can be used for driver-assist applications and equipment combining camera, LiDAR and sensor feeds such as surround or birds-eye camera views, self-parking, blind spot alerts, or collision avoidance as well as infotainment systems combining satellite navigation, phone, audio and video (DAB, CD, DVD, Internet and DigitalTV).

Broadcom's BroadR-Reach automotive Ethernet technology delivers high-performance bandwidth of 100Mb/s over an unshielded single twisted pair cable. By eliminating the need for expensive, cumbersome shielded cabling, automotive manufacturers can significantly reduce connectivity costs and cabling weight.

Early adopters of the BroadR-Reach automotive Ethernet standard used larger toroidal solutions, such as Pulse Electronics' HM6902NL, and at 5 x 5 x 5mm it was the smallest size available.

The HOT ROD family of I-Bar chokes for automotive networks is available for samples.





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