Preliminary Information
DCAN250 - CAN over Battery
Power Line Communication
Description
The DCAN250 is a VLSI device for Multiplex CAN bus communication over battery Power Lines (PLC). It
is a complete transceiver solution for CAN bus alternative physical layer between for a wide range of
vehicular modules such as the steering wheel, doors, sensors, displays, Internet/navigation computer,
security, control panel, etc.
The device operates as a smart DC - PLC transceiver for CAN bus controllers. The DCAN250 contains a
modem, a channel coder/decoder (ECC), a communication controller, and a message-buffered host
interface to overcome the hostile environment of vehicle battery lines. A Sleep Mode reduces the power
consumption when no bus communication exists. The DCAN250 is based on the DC-BUS technology,
that reduces harness weight whilst enabling flexible, quick and simple installation.
Applications
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Vehicle electronics
Car audio control
Vehicle data surveillance
Mobile computing
Mobile phone interface
Security systems
Internal communication
Features
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Noise robust up to 250Kbps communication over a battery power line.
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Reduces harness weight, eliminates complex cables and installation.
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Flexible installation operates over 12V to 42V battery lines.
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Receives and transmits CAN bus protocol.
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Peer to Peer, up to 16 devices, multi-user packet communication.
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Opens new dimensions for car electronics design.
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Sleep Mode for low power consumption.
CAN bus
Controller
CAN bus
Controller
CAN bus
Controller
DCAN250
DCAN250
DCAN250
Battery Power Line
Figure 1 - Typical DCAN250 System
Characteristics
Packet data:
Modulation method:
Collision resolution:
Error correction codes:
Power save mode:
Packet size:
Interface:
250Kbps
DQPSK
Built in
Built in
Built in
User defined
CAN
DC LINE
HOST Interface
XO
XI
RESET
SLEEP
DC LINE Rx
DC LINE Tx
Passive
Filter
@ 2007 YAMAR Electronics Ltd.
17 Shimon Hatarsi St. Tel Aviv, 62492 Israel
Tel: 972-3-5445294 Fax: 972-3-5445279
Email:
marketing@yamar.com
Web:
PODCAN250 Rev1.0
YAMAR [ YAMAR ELECTRONICS LTD. ]
