The Infineon SP family of highly integrated TPMS tire pressure monitoring sensors are suited for high volume TPMS applications. The TPMS ASIC integrates a low-power embedded Microcontroller, LF receiver and Wireless FSK / ASK UHF Transmitter. With its highly integrated mixed signal peripherals, the SP requires only few external components to complete TPMS module.
Main features:
・ Supply voltage range from . V up to . V
・ Operating temperature range - to + °C
・ Low supply current
・ Pressure sensor for kPa or kPa range
・ Z-axis acceleration sensor for motion detection
・ Temperature sensor
・ THERMAL SHUTDOWN mode for device protection at high temperatures
・ Battery voltage sensor
・ Integrated RF Transmitter for ISM Band / MHz
・ Selectable output power or dBm (transformed into Ohm load)
・ Configurable RF transmission data rates up to kbit/s Manchester coded ( kchips/s)
・ ASK/FSK modulation capability
・ Frequency deviation up to kHz in FSK mode
・ Fully integrated VCO and PLL Synthesizer
・ On chip crystal oscillator tuning
・ LF Receiver with very high input sensitivity
・ LF Receiver data rate . kbit/s
・ instruction set compatible microcontroller (cycle-optimized)
・ kByte FLASH memory (for application code)
・ kByte ROM (for ROM library functions)
・ Bytes RAM
・ Wakeup from POWER DOWN state using the Interval Timer, the LF Receiver or an external wakeup source
connected via a GPIO pin
・ IC programming/debugging interface
・ Hardware Manchester/BiPhase Encoder for RF Transmitter
・ Hardware Manchester Decoder for LF Receiver
・ Bit Hardware CRC generator
・ Bit Pseudo Random Number Generator
・ Watchdog timer
・ bidirectional GPIO pins
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