Si4313 RF Receiver​

The ​EZRadio Si4313 RF receiver complements Silicon Labs' highly differentiated EZRadio transmitters.The Si4313 single-ended GFSK/FSK/OOK receiver features continuous frequency operation over 240–960 MHz and receive sensitivity of up to -118 dBm. The Si4313 also features a simplified SPI MCU interface for radio customization and enhanced performance.
The Si4313 RF receiver offers a simple, single-ended radio implementation over the 240–960 MHz frequency range. A receive sensitivity of up to –118 dBm allows for the creation of communication links with an extended range.
The Si4313 RF receiver offers excellent receiver performance in cost-sensitive radio applications. The Si4313 RF receiver provides designers with advanced features to enable low system power consumption by offloading a number of RF-related activities from the system MCU allowing for extended MCU sleep periods. Additional features, such as an automatic wake-up timer, 64-byte RX FIFO and a preamble detection circuit are available.​
 
 

Features

  • Frequency range: 240–960 MHz
  • Sensitivity: –118 dBm
  • Low power consumption
  • Data rate: 0.2 to 128 kbps
  • FSK, GFSK, and OOK modulation schemes
  • Power supply: 1.8 to 3.6 V
  • Ultra low power shutdown mode
 
 

Applications

Documentation

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Data Sheet (1)

DescriptionVersionUpdatedSize
Si4313 Low-Cost ISM Receiver
1.03/25/2011507 kB

Data Short (1)

DescriptionVersionUpdatedSize
Si4313 Data Short
06.21.107/13/2010125 kB

User Guides (3)

Application Notes (3)

White Papers (3)

PCN (3)

Development Kits

Design Tools

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Software (2)

DescriptionVersionUpdatedSize
RF Range Calculator
8.48/22/201264 kB
Wireless Development Suite
3.2.6.01/7/201432044 kB

Schematics/Layout (2)

Example Code (2)

DescriptionVersionUpdatedSize
AN463 Deglitch Reference Code
0.212/14/201028 kB
RKE Demo for Si4311, 12 & 13.
1.2r/B10/18/2010316 kB
Product Matrix
Zoom
Part NumberOutput Power 868 MHzOutput Power 434 MHzSupply VoltagePackage TypeFSKDescriptionOOKSensitivityFrequency Bands
Si43131.8 - 3.6 VQFN20256 kbpsRX40 kbps-118/-107 dBm315 MHz; 434 MHz; 868 MHz; 915 MHz
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The Si4313 RF receiver offers a simple, single-ended radio implementation over the 240–960 MHz frequency range. A receive sensitivity of up to –118 dBm enables the creation of communication links with an extended range. The Si4313 RF receiver offers excellent receiver performance in cost-sensitive radio applications. The Si4313 RF receiver provides designers with advanced features to enable low system power consumption by offloading a number of RF-related activities from the system MCU allowing for extended MCU sleep periods.
Additional features, such as an automatic wake-up timer, 64-byte RX FIFO and a preamble detection circuit, are available.
The Si4313 digital receive architecture features an ADC and DSP-based modem that performs the radio demodulation and filtering for increased performance. The high integration of the Si4313 RF receiver reduces the external BOM to two antenna matching components, a crystal and a bypass capacitor while removing the requirement for expensive RF SAW and IF ceramic filters.
The Si4313 RF receiver is designed to work with a microcontroller, crystal, and a few passives to create a very low-cost system. Voltage regulators are integrated on-chip, which allows a wide range of operating supply voltage conditions from +1.8 to +3.6 V.
A standard 4-pin SPI bus is used to communicate with the microcontroller. Three configurable general-purpose I/Os are also available. Minimal antenna matching is required allowing the use of a single ac coupling capacitor, which simplifies the system design and lowers the solution cost.

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