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Automotive RF ICs

RF ICs for automotive communication applications provide a wireless communication capability to operate automotive devices and monitor operating conditions. Their applications include remote keyless entry (RKE) systems that remotely lock and unlock car doors and tire pressure monitoring systems (TPMS) that monitor the air pressure of vehicle tires and show warnings for low and high pressure on the instrument cluster.

RF-Devices Application : Remote Keyless Entry System

This is the block diagram of the Remote Keyless Entry System.

Transceiver IC : TC32306FTG

  • Multi-band operation (315 / 434 / 868 / 915 MHz)
  • Provides industry-leading receiver sensitivity performance. Low-power and thus energy-efficiency
  • We also offer an RF receiver version IC.
This is the block diagram of the TC32306FTG transceiver IC.
The block diagram of the TC32306FTG transceiver IC
  • The product operations were checked with a X'tal of the following manufacturers.
    • NX3225SC EXS00A-CS03981 (30.320MHz), NIHON DEMPA KOGYO CO., LTD.
    • CX3225SA30320B0GPQCC, KYOCERA Crystal Device Corporation

Features of TC32306FTG

Click here to link to the TC32306FTG detail page (datasheet download)

  • Operating supply voltage range: 2.0 to 5.5 V
  • Current consumption: When Vdd = 3.0 V (FSK modulation)
    RX: 9.7 mA
    TX: 12 mA (at +10 dBm output)
    Battery saving : 0 µA (Typ.)
  • TX output: 0 dBm, +5 dBm, +8 dBm, +10 dBm (Adjustable in steps of approx. 0.5 dB)
  • High receiver sensitivity (12-dB SINAD) -117 dBm@IFBW = 270 kHz (FSK, Data Rate = 600 Hz, fdev = ±40 kHz)
  • Multi-band operation: 315 MHz/434 MHz/868 MHz/915 MHz
  • Data rate (TX/RX) = 300 Hz to 10 kHz, on-chip digital bit rate filter
  • Multi-channel (Fractional-N PLL, 5-kHz frequency step width)
  • Supported Modulation: FSK/OOK (ASK)
  • Two IF Filter bandwidths: wide 320 kHz(typ.) at IF = 230 kHz/middle 270 kHz(typ.) at IF = 280 kHz
  • Signal detections: preamble detection, noise detection (Only for FSK), RSSI detection
  • Fast response (On-chip digital high-speed comparator)
  • Serial control: Read/Write mode, 4-wire serial interface (SPI)
* TC32306FTG is an RF transceiver. Toshiba also offers RF receivers. For details, contact your Toshiba sales representative, or ask to Contact us page.


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