Continental Automotive 5WK45032 RF Transmitter 5wk4 5032 315MHz User Manual Functional Description

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Document ID	135671
Application ID	roqWvgsBhE8RMiLu54eAtg==
Document Description	User Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	1.12kB (13943 bits)
Date Submitted	2001-02-07 00:00:00
Date Available	2001-02-07 00:00:00
Creation Date	2001-01-11 10:51:34
Producing Software	Acrobat Distiller 4.0 for Windows
Document Lastmod	2001-01-11 10:52:54
Document Title	User Manual / Functional Description

FCC ID: KR55WK45032
User Manual / Functional Description
of the
Siemens
RF Transmitter
5WK4 5032
315 MHz
Language: English
File: s:\postzula\vw\kessy\func_5wk45032_e
page 1 of 4
FCC ID: KR55WK45032
General description of the RF transmitter
The 315 MHz RF remote control system consisting of a RF transmitter
and a RF receiver mounted within the control unit. The RF transmitter is
mechanically integrated in the head of the key. This transmitter is used to
transmit an information for locking or unlocking the vehicle by an
unidirectional RF transmission line for normal remote operation by pressing a
button. For passive access functionality the transmitter is able to reply to an
inductive command with sending a remote telegramme.
In general the following functions are provided by pressing the buttons:
Lock the car
Unlock the car
Unlock trunc
Additional the following functions are provided (Keyless Entry/Go Functions):
Lock/Unlock the car
Start/Stop the engine
Power supply
The transmitter is provided with 1 Lithium battery (CR2032) that gives a
tension of feeding of +3V.
The battery inversion is protected mechanically.
Buttons
There are three buttons which enable to lock, unlock the doors and unlock the
trunk. During activation, the button is forced to the ground via a “pull-up”
within the microcontroller.
LED
The LED is turned on between transmission blocks.
File: s:\postzula\vw\kessy\func_5wk45032_e
page 2 of 4
FCC ID: KR55WK45032
Oscillator
The oscillator is of PLL type. The operating frequency is about 315 MHz ± 75
kHz.
Mechanical design
The mechanical of the transmitter is composed of four parts:
the superior shell
the inferior shell
metal insert
battery support (mechanical protection to afford battery inversion)
The battery placement is integrated in the inferior shell.
Technical data
Carrier frequency
Output Power
Type of modulation
Method of frequency generation
Number of channels
Baudrate
Power supply
Type of battery
Transmission range
File: s:\postzula\vw\kessy\func_5wk45032_e
315 MHz ± 75 kHz
< -18 dBm (carrier frequency)
ASK
Crystal
2 k Baud
3 Volt
Lithium
typical 10 meters
page 3 of 4
FCC ID: KR55WK45032
Typical usage pattern
27 lock / unlock operations in 24 hours with a typical transmission duration of
500 milliseconds
Transmitter ON
13,5
seconds / 24 hours
Transmitter OFF
86.386,5
seconds / 24 hours
Duty Cycle: TON / T (ON+OFF) x 100% = 13,5 / 86.400 x 100 % = 0,015 %
Block diagram of the transmitter
Buttons
Power
LED
µC Transponder /
inductive receiver
RF stage
Antenna
Label design
Siemens 315 MHz, 5WK4 5032
KWJJ
3D0 959 753
FCC ID: KR55WK45032
CAN: xxx xxx xxxx
Setup of homologation testing samples
For homologation testing the testing samples are equipped with continuous
transmission mode. After inserting the battery the transmitter starts continous
transmission until the battery is removed.
These special function have only been implemented for the testing related to
radio homologation.
This procedure does not correspond to the standard mode of
operation!!!
File: s:\postzula\vw\kessy\func_5wk45032_e
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Producer                        : Acrobat Distiller 4.0 for Windows
Creator                         : 
Modify Date                     : 2001:01:11 10:52:54+01:00
Title                           : User Manual / Functional Description.
Create Date                     : 2001:01:11 10:51:34
Page Count                      : 4
Page Mode                       : UseNone

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