DCAN500 Datasheet, PDF (1/6 Pages) Yamar Electronics Ltd. – CAN over Powerline Communication

Preliminary - Proprietary Information of Yamar Electronics Ltd.
DCAN500 - CAN over
Preliminary Description _{Powerline Communication}
The information in this data sheet is preliminary and may be changed without notice.
1. General
The DCAN500 transfers CAN messages over noisy DC Power Line at bitrates up to 500Kbps
using the DC-BUS technology. The DCAN500 operates as a transceiver for a new CAN
physical layer over common DC powerline used for network communication between electronic
modules. The DCAN500 eliminates the traditional CAN twisted pair data wires, saves weight and
simplifies installation.
The device receives and transmits CAN2.0A/B messages. The arbitration over the DC line is
based on the CAN message Identifier's first 11 bits. The data is error protected QPSK modulated
with low voltage narrow band carrier, eliminating the EMC generated by the "square wave" CAN
data lines.
The DCAN500 implemented in CMOS digital process that requires small silicon area, allowing
integration with other customer’s CMOS IP such as micro-controllers. The DCAN500 couples to
the DC line via capacitor; thus, there is no need for high voltage process used by ordinary CAN
transceivers.
This innovative solution allows low cost overall CAN implementation, combining power and data
over the same cable, withstanding the hostile DC lines impulse noises.
Main Features
Main Benefits
 CAN A/B protocol Communication over DC
power line
 Bit rates of up to 500Kbps
 Built-in Modem, Error Correction and
Synchronization
 Multiplex CSMA/CA arbitration mechanism
 Sleep mode for low power consumption
 Eliminates complex harness
 Reduces weight and installation time
 Robust to power line noises
 Increase reliability
 Allows flexible network designs
 Low cost CMOS Implementation
Control
Panel
Message A
-+
Battery
DCAN500
Left Door
ECU
Message B
DCAN500
Right Door
ECU
Message B
DCAN500
DC BATTERY CABLES
Security
Sensor
Message A
DCAN500
Figure 1 - DCAN500 network example
© 2008-16 Yamar Electronics Ltd.
1
DCAN 500 Description R0.8
www.yamar.com
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