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RF Encoder / Decoder Chipset


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Introduction of the basic operation of RF600 Encoder / Decoder chipset

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RF Encoder / Decoder Chipset

  1. 1. RF Encoder / Decoder Chipset <ul><li>Source: RF Solution </li></ul>
  2. 2. Introduction <ul><li>Purpose </li></ul><ul><ul><li>This training module introduces the basic operation of RF600 Encoder / Decoder chipset. </li></ul></ul><ul><li>Outline </li></ul><ul><ul><li>KEELOQ ® Encryption </li></ul></ul><ul><ul><li>RF600E Encoder </li></ul></ul><ul><ul><li>RF600D Decoder </li></ul></ul><ul><ul><li>Basic Operations </li></ul></ul><ul><li>Content </li></ul><ul><ul><li>15 pages </li></ul></ul><ul><li>Duration </li></ul><ul><ul><li>10 Minutes </li></ul></ul>
  3. 3. KEELOQ ® Encryption <ul><li>The Microchip KEELOQ provides both access and security to wireless system. </li></ul><ul><li>KEELOQ is based on an encryption algorithm that create a unique transmission on every use. </li></ul><ul><li>KEELOQ applications: </li></ul><ul><ul><li>Remote keyless entry </li></ul></ul><ul><ul><li>Electronic Door Locks & Access Control </li></ul></ul><ul><ul><li>Employee Identification </li></ul></ul><ul><ul><li>Highway toll collection </li></ul></ul><ul><ul><li>Keyboard locks </li></ul></ul><ul><ul><li>... </li></ul></ul>K EE L OQ CODE HOPPING
  4. 4. Overview of RF600 Encoder / Decoder <ul><li>Key Features </li></ul><ul><li>Highly Secure KEELOQ Protocol </li></ul><ul><li>RF Encoder & Decoder IC’s </li></ul><ul><li>Simple to Use </li></ul><ul><li>Stand Alone Operation </li></ul><ul><li>Achieves Maximum Range from RF Modules </li></ul><ul><li>1 – 4 Switch Options (15 states) </li></ul><ul><li>Decoder Serial Output </li></ul><ul><li>LED Indication of Transmission </li></ul><ul><li>Directly Compatible with Keeloq Decoder </li></ul><ul><li>Easy Learn Feature of Transmitters </li></ul><ul><li>Sleep Mode </li></ul><ul><li>Optimum Range: </li></ul><ul><ul><li>AM up to 100m </li></ul></ul><ul><ul><li>FM up to 200m </li></ul></ul><ul><ul><li>IR up to 20m </li></ul></ul>
  5. 5. Transmitter Encoder RF600E <ul><li>2.0V - 6.6V operation </li></ul><ul><li>Automatic battery level monitor </li></ul><ul><li>‘ Manchester’ modulation </li></ul><ul><li>Low battery indications </li></ul><ul><li>8 pin DIP/SOIC package </li></ul>
  6. 6. RF600E Typical Application Circuit
  7. 7. Receiver Decoder RF600D <ul><li>4.5V – 5.5V operation </li></ul><ul><li>4 digital outputs </li></ul><ul><li>Asynchronous serial interface </li></ul><ul><li>Up to 48 Transmitters can be Learned </li></ul><ul><li>18 pin DIP/SOIC package </li></ul>
  8. 8. RF600D Stand Alone Operation <ul><li>Application Circuit </li></ul>
  9. 9. RF600D Operation with an EEPROM <ul><li>Application Circuits </li></ul>
  10. 10. RF600E Data Output <ul><li>The RF600E uses a fully balance Manchester encoded data protocol. </li></ul><ul><li>The data format includes a pre-amble, synchronization header, followed by the encrypted and fixed code data then a CRC check. </li></ul><ul><li>The data packet size is 67 bit. </li></ul>
  11. 11. RF600D Serial Data Outputs <ul><li>The serial data received by RF600D from the RF600E encoder is checked for correct Manchester coding. </li></ul><ul><li>Serial Data is sent as a stream of ASCII characters at 9.6K baud. </li></ul><ul><li>The serial output data from RF600D consists of: </li></ul><ul><ul><li>7 digit KEELOQ serial number </li></ul></ul><ul><ul><li>KEELOQ button data and transmitter battery state </li></ul></ul><ul><ul><li>A carriage return character and a line feed character </li></ul></ul>Serial Data Format
  12. 12. KEELOQ Button Status ASCII Character o O 1 1 1 1 n N 0 1 1 1 m M 1 0 1 1 l L 0 0 1 1 k K 1 1 0 1 j J 0 1 0 1 i I 1 0 0 1 h H 0 0 0 1 g G 1 1 1 0 f F 0 1 1 0 e E 1 0 1 0 d D 0 0 1 0 c C 1 1 0 0 b B 0 1 0 0 a A 1 0 0 0 KEELOQ Button with Low battery KEELOQ Button S0 S1 S2 S3
  13. 13. RF600D Learn / Erase Mode <ul><li>Learn Mode : is achieved by pulling this input to GND briefly. </li></ul><ul><li>Erase Mode : is achieved by pulling this input to GND for more than 8 seconds. This causes the EEPROM to be erased of all pre-learnt RF600E encoders. </li></ul>
  14. 14. RF600 Evaluation Boards <ul><li>RFEVAL Key Features </li></ul><ul><li>Remote Telemetry Evaluation </li></ul><ul><li>AM and FM & IR Technology </li></ul><ul><li>Digital and RS232 Serial Data Outputs </li></ul><ul><li>Hardware Evaluation Platform </li></ul><ul><li>Range Testing </li></ul><ul><li>Target Environment Testing </li></ul><ul><li>Antenna Evaluation </li></ul><ul><li>Uses RF600 Encoder/Decoder (Keeloq) </li></ul>
  15. 15. Additional Resource <ul><li>For ordering the RF600D/E devices, please click the part list or </li></ul><ul><li>Call our sales hotline </li></ul><ul><li>For additional inquires contact our technical service hotline </li></ul><ul><li>For more product information go to </li></ul><ul><ul><li> </li></ul></ul>