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HomeProductsRF/IF and RFIDRF Transceiver ICsSI4438-C2A-GMR
Silicon Labs
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SI4438-C2A-GMR - Silicon Labs

Manufacturer Part Number
SI4438-C2A-GMR
Manufacturer
Energy Micro (Silicon Labs)
Allelco Part Number
32D-SI4438-C2A-GMR
ECAD Model
Parts Description
IC RF TXRX ISM<1GHZ 20VFQFN
Detailed Description
Package
20-VFQFN Exposed Pad
Data sheet
SI4438-C.pdf
SI4438-C.pdf
RoHs Status
RoHS Compliant
Our certification
In stock: 4430

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Specifications

SI4438-C2A-GMR Tech Specifications
Silicon Labs - SI4438-C2A-GMR technical specifications, attributes, parameters and parts with similar specifications to Silicon Labs - SI4438-C2A-GMR

Product Attribute Attribute Value  
Manufacturer Energy Micro (Silicon Labs)  
Voltage - Supply 1.8V ~ 3.6V  
Type TxRx Only  
Supplier Device Package 20-QFN (4x4)  
Series -  
Serial Interfaces SPI  
Sensitivity -124dBm  
RF Family/Standard General ISM < 1GHz  
Protocol -  
Power - Output 20dBm (Max)  
Package / Case 20-VFQFN Exposed Pad  
Product Attribute Attribute Value  
Package Tape & Reel (TR)  
Operating Temperature -40°C ~ 85°C  
Mounting Type Surface Mount  
Modulation FSK, GFSK, GMSK, OOK  
Memory Size -  
GPIO 4  
Frequency 425MHz ~ 525MHz  
Data Rate (Max) 500kbps  
Current - Transmitting 75mA  
Current - Receiving 13.7mA  
Base Product Number SI4438  

Parts Introduction

Manufacturer Part Number

SI4438-C2A-GMR

Manufacturer

Energy Micro (Silicon Labs)

Introduction

RF Transceiver IC for ISM band applications

Supports multiple modulation schemes including FSK, GFSK, GMSK, and OOK

Product Features and Performance

Frequency range: 425MHz to 525MHz

Operating temperature: -40°C to 85°C

Supply voltage: 1.8V to 3.6V

Transmit current: 75mA max

Receive current: 13.7mA

Output power: 20dBm max

Sensitivity: -124dBm

Data rate: up to 500kbps

4 GPIO pins

Product Advantages

Highly integrated and flexible RF transceiver

Wide frequency and temperature range

Low power consumption

Key Technical Parameters

Frequency range: 425MHz to 525MHz

Operating temperature: -40°C to 85°C

Supply voltage: 1.8V to 3.6V

Transmit current: 75mA max

Receive current: 13.7mA

Output power: 20dBm max

Sensitivity: -124dBm

Data rate: up to 500kbps

Modulation: FSK, GFSK, GMSK, OOK

4 GPIO pins

Quality and Safety Features

RoHS compliant

Compatibility

Surface mount package (20-QFN, 4x4)

Tape and reel packaging

Application Areas

General ISM band applications below 1GHz

Wireless sensor networks

Remote controls

Industrial automation

Home automation

Product Lifecycle

Currently in production

Replacement or upgrade options may be available

Key Reasons to Choose This Product

Wide frequency and temperature range

Low power consumption

Highly integrated and flexible design

Supports multiple modulation schemes

RoHS compliance

Available in standard surface mount package

Parts with Similar Specifications

The three parts on the right have similar specifications to Silicon Labs SI4438-C2A-GMR

Product Attribute SI4438-C2A-GMR SI4438-B1C-FM SI4438-C2A-GM SI4438-B1C-FMR
Part Number SI4438-C2A-GMR SI4438-B1C-FM SI4438-C2A-GM SI4438-B1C-FMR
Manufacturer Silicon Labs Silicon Labs Silicon Labs Silicon Labs
Frequency 425MHz ~ 525MHz 425MHz ~ 525MHz 425MHz ~ 525MHz 425MHz ~ 525MHz
RF Family/Standard General ISM < 1GHz General ISM < 1GHz General ISM < 1GHz General ISM < 1GHz
GPIO 4 4 4 4
Supplier Device Package 20-QFN (4x4) 20-QFN (4x4) 20-QFN (4x4) 20-QFN (4x4)
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Memory Size - - - -
Voltage - Supply 1.8V ~ 3.6V 1.8V ~ 3.6V 1.8V ~ 3.6V 1.8V ~ 3.6V
Power - Output 20dBm (Max) 20dBm (Max) 20dBm (Max) 20dBm (Max)
Series - - - -
Protocol - - - -
Base Product Number SI4438 SI4438 SI4438 SI4438
Sensitivity -124dBm -124dBm -124dBm -124dBm
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Serial Interfaces SPI SPI SPI SPI
Type TxRx Only TxRx Only TxRx Only TxRx Only
Package / Case 20-VFQFN Exposed Pad 20-VFQFN Exposed Pad 20-VFQFN Exposed Pad 20-VFQFN Exposed Pad
Current - Transmitting 75mA 75mA 75mA 75mA
Package Tape & Reel (TR) Tray Tray Tape & Reel (TR)
Modulation FSK, GFSK, GMSK, OOK FSK, GFSK, GMSK, OOK FSK, GFSK, GMSK, OOK FSK, GFSK, GMSK, OOK
Data Rate (Max) 500kbps 500kbps 500kbps 500kbps
Current - Receiving 13.7mA 14mA 13.7mA 14mA

SI4438-C2A-GMR Datasheet PDF

Download SI4438-C2A-GMR pdf datasheets and Silicon Labs documentation for SI4438-C2A-GMR - Silicon Labs.

Datasheets
SI4438-C.pdf
PCN Packaging
Labeling Change 14/Dec/2021.pdf Mult Dev Label Chgs 20/Oct/2021.pdf
HTML Datasheet
SI4438-C.pdf
PCN Assembly/Origin
Si4x5x/Si4x6x 08/Mar/2023.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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Silicon Labs

SI4438-C2A-GMR

Silicon Labs
32D-SI4438-C2A-GMR

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