©2007 YAMAR Electronics Ltd.

17 Shimon Hatarsi St. Tel Aviv, 62492 Israel

Tel: +972-3-5445294 Fax: +972-3-5445279

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PO-DCB500 Rev1.1

Description

The DCB500 is a transceiver for multiplex communication over noisy powerline in automotive and

avionics networks. The flexible protocol allows various applications such as transferring Data, Voice,

Compressed video (e.g. H.264) and music (e.g. MP3) between modules sharing a common DC

powerline at transfer rates up to 500Kbps.

The device is based on DC-BUS™ technology for multiplex network communication over noisy

powerline. It avoids complex cabling, saves weight, and simplifies installation. The device

communicates with its Host via Serial Peripheral Interface (SPI) or UART interface providing the user

the freedom to use his application-defined protocol.

Features

Benefits

• Communication over DC power lines

• Bit rates of 500Kbps and 300Kbps

• Built in Modem, Error Correction and

Synchronization

• Multiplex CSMA/CA mechanism

• UART and SPI interfaces with host

• Channel frequency selection

• Sleep mode for low power consumption

• Eliminates complex cabling

• Reduces weight and installation time

• Robust to car battery line noises

• Unlimited message length

• Suitable for Voice and video streaming

• Low cost CMOS Implementation

-

+

DC BATTERY CABLES

DCB500

M essage A

Control

Panel

ECU

Right Door

ECU

Battery

DCB500

DCB500

DCB500

Left Door

M essage B

M essage B

M essage A

Cam era

Figure 1.1 - System using DCB500

Characteristics

Packet data:

500Kbps

Modulation method:

DQPSK

Collision resolution:

Built in

Error correction codes:

Built in

Power save mode:

Built in

Packet size:

User defined

Interface:

UART or SPI

DCB500 - Transceiver for

Powerline Communication

Product Overview

HOST Interface

DC LINE Rx

RESET

XI

XO

SLEEP

DC LINE Tx

Passive

Filter

DC LINE