Proprietary and Confidential Information of YAMAR Electronics Ltd.

@ 2006 Yamar Electronics Ltd.

1

DS-SIG40 R1.8

www.yamar.com

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

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.

HDC

5

HDI

3

HDO

1

nSleep

4

INH

2

Wake

7

DTxO

18

RxN

15

InterfHop

8

VccPLL

9

nReset

6

TxOn

19

RxOn

20

GndPLL

11

OscOut

12

OscIn

13

Vcc

14

Gnd

17

RxP

16

MF0nF1

10

Figure 1.1 - SIG40 Pin Diagram

SIG40 for DC-LIN

Asynchronous Communication

Over Noisy Lines

YAMAR

E le c tro n ic s L td

Preliminary Data Sheet

This information is preliminary and may be changed without notice