Proprietary and Confidential Information of YAMAR Electronics Ltd.
YAMAR
E le c tro n ic s L td
Preliminary
Data Sheet
SIG40 for DC-LIN
Asynchronous Communication
Over Noisy Lines
This information is preliminary and may be changed without notice
1
GENERAL
The SIG40 is an innovative VLSI solution for digital communication over a single wire or a battery-
powered line for asynchronous LIN and UART protocols, using original multiplex digital signaling
technology. It provides a new economical physical communication layer for asynchronous protocols.
Since the SIG40 consists of CMOS technology, it can be economically integrated with other CMOS
applications such as micro controllers.
When implemented in a LIN network, the SIG40 replaces the LIN transceiver and the LIN Data wire. Its
57.6Kbps data rate triples the LIN transfer rate. The SIG40 saves node costs and increases the
network capacity. A sleep mode enables power saving. Wakeup messages on the DC line awaken
remote devices as required by the LIN protocol.
The SIG40 capability of communicating over battery-powered line as a new physical layer of the LIN
protocol is useful for a wide range of vehicular applications, such as doors, seats, mirrors, climate
control, lights etc. The SIG40 contains a host and LIN interface, modem, line driver and ceramic filter
interface.
The device features a unique Signaling technology to overcome the hostile communication conditions
of a vehicle battery line. It consists of a Signaling Modem, Signaling Coder/Decoder and a
Communication Controller overcoming the hostile environment over vehicle battery lines. Sleep mode
reduces the power consumption when there is no bus activity.
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2
3
4
5
6
7
8
9
10
HDO
INH
HDI
nSleep
HDC
nReset
Wake
InterfHop
VccPLL
MF0nF1
RxOn
TxOn
DTxO
Gnd
RxP
RxN
Vcc
OscIn
OscOut
GndPLL
20
19
18
17
16
15
14
13
12
11
Figure 1.1 - SIG40 Pin Diagram
@ 2006 Yamar Electronics Ltd.
www.yamar.com
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DS-SIG40 R1.8
Tel: +972-3-5445294 Fax: +972-3-5445279
YAMAR [ YAMAR ELECTRONICS LTD. ]
