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Sub-GHz transceiver IC for Automotive

The UHF wireless communications using Sub-GHz is used in a Tire-Pressure Monitoring Systems (TPMS) which detect an abnormal air pressure or a Remote Keyless Entry (RKE) systems which unlocks and locks a car door.
It is applicable to a remote control engine starter, the opening-and-closing remote control of a garage door, etc. besides RKE & TPMS. It can be used for weak wireless-applications and specific small electric power wireless applications.

RF-Devices Application : Remote Keyless Entry System
RF-Devices Application : Remote Keyless Entry System


Part Number

voltage range

Current consumption

TX output



2.0 ~ 5.5 V

When Vdd = 3.0 V (FSK modulation)
RX: 9.7 mA
TX: 12 mA (at +10 dBm output)
Battery saving: 0 µA (Typ.)

 0 dBm, +5 dBm, +8 dBm, +10 dBm (Adjustable in steps of approx. 0.5 dB)

operation: 315 MHz/434 MHz/868 MHz/915 MHz





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