APGAC031 Microchip Technology, APGAC031 Datasheet
APGAC031
Specifications of APGAC031
Related parts for APGAC031
APGAC031 Summary of contents
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... FIGURE 1: TIRE PRESSURE MONITORING (TPM) SYSTEM © 2009 Microchip Technology Inc. AN238 An auto-location system can dynamically detect the position of a specific sensor, which is useful when tires are rotated. The heart of the TPM system is the Sensor/Transmitter (S/TX) device and it is based on Microchip’ ...
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... The rfPIC microcontroller performs three functions. It monitors the data line from the SP-13 sensor IC and from the LF input, and assembles and transmits a RF message at periodic intervals. © 2009 Microchip Technology Inc. ...
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... RF CIRCUITRY C4 270 pF Loop Antenna L3 © 2009 Microchip Technology Inc. Loop antenna L3 is matched to the single-ended RF driver via C3 and C8, which also form the resonant tank. Refer to application note AN831, “Matching Small Loop Antennas to rfPIC tion note AN868, “Designing Loop Antennas for the rfPIC12F675” ...
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... LF fields are present. This can be seen when the LF commander device is in close proximity to the S/TX device. The envelope detection circuit can be abandoned to reduce cost, but doing so would require additional data extraction software. © 2009 Microchip Technology Inc. GP0 C10 through REF ...
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... Preamble Transmitter ID Pressure Temperature Battery Status CRC © 2009 Microchip Technology Inc. COUT CIN- GP3 rfPIC12F675_SSOP Preamble: The preamble is a series of 31 logic ‘1’ bits followed by a single logic ‘0’ bit. The preamble allows the receiver to recognize the RF transmission as a valid S/TX message ...
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... PKE, RKE and more. LF TRANSMISSION ENCODING METHOD Logic ‘0’ Bits Preamble BIT FUNCTIONS Function Enable RF transmissions Disable RF transmissions Transmit an immediate RF message Transmit at 60-second interval Transmit at 15-second interval Transmit at 5-second interval © 2009 Microchip Technology Inc. ...
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... FIGURE 7: PHOTOGRAPH OF SENSOR/TRANSMITTER DEVICE © 2009 Microchip Technology Inc. AN238 DS00238C-page 7 ...
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... Methods for Increasing Sensitivity” Application Note (AN832), DS00832; Microchip Technology Inc. 5. “Optimizing PLL Filters for the rfPIC12C509A and rfHCS362” Application Note (AN846), DS00846; Microchip Technology Inc. 6. “rfPIC12F675” Data Sheet, DS70091; Microchip Technology Inc. DS00238C-page 8 © 2009 Microchip Technology Inc. ...
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... APPENDIX A: SCHEMATICS FIGURE A-1: TPM SENSOR/TRANSMITTER SCHEMATIC © 2009 Microchip Technology Inc. AN238 DS00238C-page 9 ...
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... AN238 NOTES: DS00238C-page 10 © 2009 Microchip Technology Inc. ...
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... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...
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... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2009 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...