SI4438-B1C-FMR

Silicon Labs

IC RF TXRX ISM<1GHZ 20QFN

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Silicon Labs

IC RF TXRX ISM<1GHZ 20QFN

Technical Specifications

Parameters and characteristics for this part

Part	Current - Transmitting	Voltage - Supply [Max]	Voltage - Supply [Min]	Serial Interfaces	Modulation	Frequency [Max]	Frequency [Min]	Type	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Supplier Device Package	Power - Output [Max]	GPIO	Package / Case	Data Rate (Max)	Sensitivity	RF Family/Standard	Current - Receiving
Silicon Labs SI4438-B1C-FMR	75 mA	3.6 V	1.8 V	SPI	FSK GFSK GMSK OOK	525 MHz	425 MHz	TxRx Only	85 °C	-40 °C	Surface Mount	20-QFN (4x4)	20 dBm	4	20-VFQFN Exposed Pad	500 kbps	-124 dBm	General ISM < 1GHz	14 mA
Silicon Labs SI4438-C2A-GMR	75 mA	3.6 V	1.8 V	SPI	FSK GFSK GMSK OOK	525 MHz	425 MHz	TxRx Only	85 °C	-40 °C	Surface Mount	20-QFN (4x4)	20 dBm	4	20-VFQFN Exposed Pad	500 kbps	-124 dBm	General ISM < 1GHz	13.7 mA
Silicon Labs SI4438-C2A-GM	75 mA	3.6 V	1.8 V	SPI	FSK GFSK GMSK OOK	525 MHz	425 MHz	TxRx Only	85 °C	-40 °C	Surface Mount	20-QFN (4x4)	20 dBm	4	20-VFQFN Exposed Pad	500 kbps	-124 dBm	General ISM < 1GHz	13.7 mA

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

General part information

IC RF TxRx Only General ISM < 1GHz 425MHz ~ 525MHz 20-VFQFN Exposed Pad

Technical documentation and resources