Continental Automotive Systems Corporation 5WY8230 User Manual
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Table of Contents
page
1.
GENERAL.......................................................................................................................................................................................3
1.1.
D
EFINITIONS AND ABBRE VIATIONS
.................................................................................................................................. 4
2.
SYSTEM DESCRIPTION............................................................................................................................................................5
2.1.
SR
X SYSTEM BLOCK DIAGRAM
........................................................................................................................................... 6
2.1.1.
Application for KOR-baby board receiver (TDA521X) .......................................................................................7
2.2.
SR
X MODULE
PIN
–
OUT CONFIGURATION
...................................................................................................................... 8
2.2.1.
Main connector X1 .....................................................................................................................................................8
2.2.2.
RF antenna connector X2..........................................................................................................................................8
3.
FUNCTION ELECTRICAL DESCRIPTION ............................................................................................................................9
3.1.
SRX
O
PERATION
M
ODES
.................................................................................................................................................... 9
3.1.1.
RKE MODE...................................................................................................................................................................9
3.1.2.
PASE MODE.................................................................................................................................................................9
3.1.3.
SLEEP MODE ..............................................................................................................................................................9
3.1.4.
STAND-BY MODE:....................................................................................................................................................10
3.2.
D
UTY CONTROL FOR
PDWN............................................................................................................................................ 11
3.3.
M
ODULATION SELECTION FOR
MSEL............................................................................................................................ 11
3.4.
RSSI
(
RECEIVED SIGNAL STRENGTH INDICATOR
)
FOR
R
ANGE REDUCTION
............................................................. 11
3.5.
D
EMODULATED DATA OUT FOR
RF_DATA................................................................................................................. 12
3.5.1.
Data Output Electrical Characteristics: ..............................................................................................................12
3.6.
SRX
D
ATA LINE
(
SERIAL
I
NTERFACE
)
SRX_COM
FOR
R
X
D
/
T
X
D
/
WAKEUP.................................................... 12
3.7.
B
ATTERY VOLTAGE REFERENCE OBSERVATION
.......................................................................................................... 12
4.
SRX SYSTEM ELECTRICAL SPECIFICATION..................................................................................................................12
4.1.
O
PERATING
T
EMPERATURE
R
ANGE OF
SR
X
................................................................................................................. 12
4.2.
O
PERATING
V
OLTAGE
R
ANGE OF
SR
X
........................................................................................................................... 12
4.3.
Q
UIESCENT
C
URRENT
[I
S
] ................................................................................................................................................ 13
5.
MICRO-PROCESSOR DESCRIPTION.................................................................................................................................13
6.
RF TECHNICAL DESCRIPTION ............................................................................................................................................14
6.1.
RF
INPUT SENSITIVITY
...................................................................................................................................................... 14
6.1.1.
RF input sensitivity ...................................................................................................................................................14
6.1.2.
RF data output demodulation polarity.................................................................................................................14
7.
SYSTEM COMPATIBILITY WITH TX FREQUENCY TOLERANCE..............................................................................14
7.1.1.
3 dB sensitivity degradation ...................................................................................................................................14