SI4431-B1-FM Silicon Laboratories Inc, SI4431-B1-FM Datasheet - Page 49
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SI4431-B1-FM
Manufacturer Part Number
SI4431-B1-FM
Description
IC TXRX 240-930MHZ -8-13DB 20QFN
Manufacturer
Silicon Laboratories Inc
Specifications of SI4431-B1-FM
Package / Case
20-VQFN
Mfg Application Notes
Transitioning SI4430/31 to Rev B
Frequency
240MHz ~ 930MHz
Data Rate - Maximum
256kbps
Modulation Or Protocol
FSK, GFSK, OOK
Applications
General Purpose
Power - Output
13dBm
Sensitivity
-121dBm
Voltage - Supply
1.8 V ~ 3.6 V
Current - Receiving
18.5mA
Current - Transmitting
30mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Operating Temperature
-40°C ~ 85°C
Wireless Frequency
240 MHz to 930 MHz
Output Power
13 dBm
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Maximum Supply Current
30 mA
Minimum Operating Temperature
- 40 C
Modulation
FSK, GFSK, OOK
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Product Depth (mm)
4mm
Product Length (mm)
4mm
Operating Supply Voltage (min)
1.8V
Operating Supply Voltage (typ)
3V
Operating Supply Voltage (max)
3.6V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Memory Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SI4431-B1-FMR
Manufacturer:
TE
Quantity:
2 000
Part Number:
SI4431-B1-FMR
Manufacturer:
SILICON LABS/芯科
Quantity:
20 000
Si4430/31/32-B1
7. RX Modem Configuration
A Microsoft Excel parameter calculator or Wireless Development Suite (WDS) calculator is provided to determine
the proper settings for the modem. The calculator can be found on www.silabs.com or on the CD provided with the
demo kits. An application note is available to describe how to use the calculator and to provide advanced
descriptions of the modem settings and calculations.
7.1. Modem Settings for FSK and GFSK
The modem performs channel selection and demodulation in the digital domain. The channel filter bandwidth is
configurable from 2.6 to 620 kHz. The receiver data-rate, modulation index, and bandwidth are set via registers
1C–25h. The modulation index is equal to 2 times the peak deviation divided by the data rate (Rb).
When Manchester coding is disabled, the required channel filter bandwidth is calculated as BW = 2Fd + Rb where
Fd is the frequency deviation and Rb is the data rate.
Rev 1.1
49