YAMAR
E lec tro n ics L td
Preliminary
Data Sheet
QDC10 - Multiplex Data
On Battery Power Lines
January 2002
The information in this data sheet is preliminary and may be changed without notice.
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GENERAL
The QDC10 is a VLSI device for Data communication over noisy DC power lines to eliminate complex
wiring and provide quick and simple installation. If required, the device can operate on a single wire bus.
It is a complete solution to multiplex commands and data between wide range of modules in a vehicle
such as Climate Control and its Temperature sensors, Security detectors and Immobilizers, Car Audio
components, Remote operation buttons on the steering wheel, etc.
The QDC10 is based on a patented DC-BUS™ technology. It contains a Modem, Channel
Coder/decoder (ECC), Communication Controller to overcome the hostile environment on vehicle
battery lines.
Applications
Vehicle Electronics
Security Systems
Car Audio Control
Climate Control
Navigation Systems
Features
Noise Robust, 10Kbps Communication on Battery Power Lines
Peer to Peer, Up to 16 Devices, 2-16 bytes Packet Message
Low Cost, Flexible, Eliminates Complex Cabling, Saves
installation
Sleep Mode for Low Power Consumption
Opens New Dimensions for Car Electronics Design
Data Bandwidth can be Shared dynamically Between active
devices
Figure 1.1 - Typical QDC10 Applications
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2.1
OVERVIEW
DC-BUS™ System
™
A QDC10 network serves up to 16 devices, each of them can broadcast data messages to other devices
on the bus. The device can be interfaced and controlled by a Host microprocessor via a serial
synchronous communication. Simple applications, such as switches can be implemented directly on the
device eliminating the need of a host. The DC-BUS is a Carrier Sense Multiple Access (CSMA) Collision
detection / resolving system. It uses a dedicated frequency for Data and Control transfer between
© 2002-2010 YAMAR Electronics Ltd.
1
DS-QDC10 R1.5
www.yamar.com
Shimon Hatarsi Tel Aviv, Israel. Tel (972) 3 5445294 Fax (972) 3 5445279
YAMAR [ YAMAR ELECTRONICS LTD. ]
