Continental 5WY8230 User Manual

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Functional Description

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Siemens Korea RF SRX module

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Type: 5WY8230(for 315MHz)

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Table of Contents page

1. GENERAL.......................................................................................................................................................................................3

1.1. DEFINITIONS AND ABBRE VIATIONS.................................................................................................................................. 4

2. SYSTEM DESCRIPTION............................................................................................................................................................5

2.1. SRX SYSTEM BLOCK DIAGR AM........................................................................................................................................... 6

2.1.1. Application for KOR-baby board receiver (TDA521X).......................................................................................7

2.2. SRX 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 OPERATION MODES....................................................................................................................................................9

3.1.1. RKE MODE...................................................................................................................................................................9

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3.1.2. PASE MODE.................................................................................................................................................................9

3.1.3. SLEEP MODE..............................................................................................................................................................9

3.1.4. STAND-BY MODE:....................................................................................................................................................10

3.2. DUTY CONTROL FOR PDWN............................................................................................................................................11

3.3. MODULATION SELECTION FOR MSEL............................................................................................................................11

3.4. RSSI (RECEIVED SIGNAL STRE NGTH INDICATOR) FOR RANGE REDUCTION.............................................................11

3.5. DEMODULATED DATA OUT FOR RF_DATA.................................................................................................................12

3.5.1. Data Output Electrical Characteristics:..............................................................................................................12

3.6. SRX DATA LINE (SERIAL INTERFACE) SRX_COM FOR RXD / TXD / WAKEUP.................................................... 12

3.7. BATTERY VOLTAGE REFERENCE OBSERVATION..........................................................................................................12

4. SRX SYSTEM ELECTRICAL SPECIFICATION..................................................................................................................12

4.1. OPERATING TEMPERATURE RANGE OF SRX.................................................................................................................12

4.2. OPERATING V OLTAGE RANGE OF SRX........................................................................................................................... 12

4.3. QUIESCENT CURRENT [I S]................................................................................................................................................ 13

5. MICRO-PROCESSOR DESCRIPTION.................................................................................................................................13

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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

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FCC Compliance statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to

part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

— Reorient or relocate the receiving antenna. — Increase the separation between the equipment and receiver.

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— Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. — Consult the dealer or an experienced radio/TV technician for help.

Caution: You are cautioned that any changes or modifications to the equipment not expressly approved by the party responsible for compliance could void your authority to operate the equipment.

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

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(1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.

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1. GENERAL

This is describes the hardware RF engineering of the stand alone RF receiver (SRx) for the HYUNDAI TG project, which has the general RF Hardware and RF electrical specification for the remote control radio frequency reception

1.1. Definitions and abbreviations

SRx : Stand- alone receiver (RX) RKE : Remote Keyless Entry RF : Radio Frequency BCM : Body Control Module PASE : Passive Access Start & Entry

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IPM : In-Panel Module PIC : Personal Identification Card PDWN : Power Down TG, BH ; Name of Hyundai motor vehicle platform FSK ; Frequency Shift -Keying ASK : Amplitude Shift - Keying LNA : Low Noise Amplifier Tx : Transmitter Rx : Receiver MSEL : Modulation Selection RISS : Received Signal Strength Indicator RxD : Receiving Data TxD : Transmit Data VREF : Voltage Reference TP : Test Point EOL : End of Line VBAT : Voltage Battery TTGD : Time To Good Data VSWR : Voltage Standing Wave Ratio ECU : Electronic Control Unit ICT : In- Circuit Test OST : Oscillation Stabilization Time

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2. SYSTEM DESCRIPTION

This Standalone (SRx) receiver has to support the receipt of RF telegram from transmitted in free air way by corresponding transmitter and to transmit them to a host module (e.g. the Body Control Module and PIC module).

Ø KOR-baby board receiver 315, FSK -1K data rate based on Infineon TDA 521x , which module

optimized maximum for the enhanced RF working range with LNA and data filter characterization.

All receipts of RF telegram has to be transmitted to a host module with the serial linked communication line which line of single-wired serial link must be available to communicate with bi-directional for a bit rate 2.4k bauds for BCM for a bit rate 9.6k bauds for PIC.

This SRx provide a variant 4 resistors with pull- Ground down for reading of mounted code.

The processor of the SRx was selected as 8-bit Single-chip NEC’s Micro-controller with 78KO series

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The main function of generic SRx is

Ø RF signal detection (in-band) Ø Data signal demodulation. Ø Manchester and Shark protocol detection Ø Self-polling for the standby current consumption Ø Wake up function for the host module Ø 315MHz RF data reception Ø Serial communication with the single –wired link com.

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