Continental Automotive 5WK47993 Radio Frequency Transmitter type E60 User Manual Functional description
Continental Automotive GmbH Radio Frequency Transmitter type E60 Functional description
manual
Siemens VDO Automotive AG SV C CE AIS LF
IC: 267T-5WK47993 FCC ID:KR55WK47993
File: S:\Postzula\BMW\E60\Func_E60.doc Page 1 of 6
User Manual
of the
Siemens VDO
Radio Frequency Transmitter
type E60
Siemens VDO Automotive AG SV C CE AIS LF
IC: 267T-5WK47993 FCC ID:KR55WK47993
File: S:\Postzula\BMW\E60\Func_E60.doc Page 2 of 6
General description of the RF transmitter E60
The RF remote control system E60 consists 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.
In general the following functions are provided:
- Lock the car
- Unlock the car
- Unlock the trunk of the car
Power supply
The transmitter is provided with 1 Lithium accumulator (VL 2020) that gives a
power supply of +3V.
Buttons
There are three buttons which enable to lock and unlock the doors and to
unlock the trunk.
During activation, the button is forced to the ground via a “pull-up” within the
microcontroller.
Typical usage pattern (for Europe only)
10 lock/unlock operations in 24 hours with a transmission duration of 0.28 seconds
4 lock/unlock operations in 24 hours with a transmission duration of 6 seconds
→ total transmission duration of 8.8 seconds within 24 hours
Transmitter ON 0.366 seconds / hour
Transmitter OFF 3599.634 seconds / hour
Duty Cycle: TON / T (ON+OFF) x 100% = 0.366 / 3,600 x 100 % = 0.01 %
Siemens VDO Automotive AG SV C CE AIS LF
IC: 267T-5WK47993 FCC ID:KR55WK47993
File: S:\Postzula\BMW\E60\Func_E60.doc Page 3 of 6
Block diagrams of the transmitter
Button's PLL Transmitter
IC
9,84375 MHz
Crystal
125 kHz
LF Circuit
(L/C)
315 MHz
Loop Antenna
µC for LF communication /
RF - transmittion
Power Supply
2,2 to 3,3 V
µC reference frequency
616,54kHz
Tx, RF data
4,807 kBit/sec
315 MHz
Button's PLL Transmitter
IC
13,5687 MHz
Crystal
125 kHz
LF Circuit
(L/C)
µC for LF communication /
RF - transmittion
Power Supply
2,2 to 3,3 V
µC reference frequency
847,5kHz
Tx, RF data
5,3 kBit/sec
434,2
MHz
434 MHz
Loop Antenna
Siemens VDO Automotive AG SV C CE AIS LF
IC: 267T-5WK47993 FCC ID:KR55WK47993
File: S:\Postzula\BMW\E60\Func_E60.doc Page 4 of 6
Button's PLL Transmitter
IC
13,5687 MHz
Crystal
125 kHz
LF Circuit
(L/C)
µC for LF communication /
RF - transmittion
Power Supply
2,2 to 3,3 V
µC reference frequency
847,5kHz
Tx, RF data
5,3 kBit/sec
868,4
MHz
868,4 MHz
Loop Antenna
Siemens VDO Automotive AG SV C CE AIS LF
IC: 267T-5WK47993 FCC ID:KR55WK47993
File: S:\Postzula\BMW\E60\Func_E60.doc Page 5 of 6
Variants
Model Description
5WK4 7991 868.4MHz variant for Europe
5WK4 7992 434.2MHz variant for Europe
5WK4 7993 315MHz variant for USA
5WK4 7994 315MHz variant reduced power for Japan
Technical Data
Carrier frequency model 5WK4 7991: 868.4 MHz ± 0.05%
Carrier frequency model 5WK4 7992: 434.2 MHz ± 0.05%
Carrier frequency model 5WK4 7993: 315 MHz ± 0.05%
Carrier frequency model 5WK4 7994: 315 MHz ± 0.05%
Output power model 5KW4 7991/2/3: < 10 mW
Field strength model 5WK47994: < 500µV/m @ 3m
Type of modulation model 5KW4 7991/2/3: FSK
Type of modulation model 5KW4 7994: ASK
Method of frequency generation: PLL
Number of channels: 1
Power supply: akku (VL 2020)
Type of akkku: lithium
Transmission range: <10 m
NOTE:
Changes or modifications not expressly approved by the party
responsible for compliance could void the user´s authority to operate the
equipment.
Siemens VDO Automotive AG SV C CE AIS LF
IC: 267T-5WK47993 FCC ID:KR55WK47993
File: S:\Postzula\BMW\E60\Func_E60.doc Page 6 of 6
Label design
Europe: (433MHz + 868 MHz) Japan: (315MHz)
Siemens VDO Siemens VDO
5WK4 7991 or 5WK4 7994
5WK4 7992
USA/CAN: (315 MHz)
Siemens VDO
5WK4 7993
IC: 267T-5WK47993
FCC ID:KR55WK47993
This device complies with part 15 of
the FCC Rules. Operation is subject
to the following two conditions: (1)
This device may not cause harmful
interference, and (2) this device
must accept interference received,
including interference that may
cause undesired operation.