SI4431-A0-FM Silicon Laboratories Inc, SI4431-A0-FM Datasheet - Page 102
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SI4431-A0-FM
Manufacturer Part Number
SI4431-A0-FM
Description
IC TXRX ISM 930MHZ 3.6V 20-QFN
Manufacturer
Silicon Laboratories Inc
Specifications of SI4431-A0-FM
Package / Case
20-QFN
Mfg Application Notes
Transitioning SI4430/31 to Rev B
Frequency
240MHz ~ 930MHz
Data Rate - Maximum
128kbps
Modulation Or Protocol
FSK, GFSK, OOK
Power - Output
13dBm
Sensitivity
-118dBm
Voltage - Supply
1.8 V ~ 3.6 V
Current - Receiving
18.5mA
Current - Transmitting
28mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Operating Temperature
-40°C ~ 85°C
Number Of Receivers
2
Number Of Transmitters
1
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
28 mA
Minimum Operating Temperature
- 40 C
Modulation
FSK, GFSK, OOK
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Applications
-
Memory Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
336-1633-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SI4431-A0-FMR
Manufacturer:
SILICON
Quantity:
3 500
Part Number:
SI4431-A0-FMR
Manufacturer:
SILICONLABS/芯科
Quantity:
20 000
Register 14h. Wake-Up Timer Period 1
Register 15h. Wake-Up Timer Period 2
Register 16h. Wake-Up Timer Period 3
Si4431
Note: If a new configuration is needed (e.g., for the WUT or the LDC), proper functionality is required. The
Reset value = xxx00011
Reset value = 00000000
Reset value = 00000001
102
Name
*Note: The period of the wake-up timer can be calculated as T
Name
*Note: The period of the wake-up timer can be calculated as T
Name
*Note: The period of the wake-up timer can be calculated as T
Type
Type
Type
Bit
Bit
Bit
7:5
4:0
7:0
7:0
Bit
Bit
Bit
function must first be disabled, then the settings changed, then enabled back on.
maximum value for R is decimal 20. A value greater than 20 will result in the same as if 20 was written.
Reserved
wtm[15:8]
wtm[7:0]
wtr[4:0]
Name
Name
Name
D7
D7
D7
Reserved
Reserved.
Wake Up Timer Exponent (R) Value*.
Maximum value for R is decimal 20. A value greater than 20 will yield a result as if 20
were written. R Value = 0 can be written here.
Wake Up Timer Mantissa (M) Value*.
Wake Up Timer Mantissa (M) Value*.
M[7:0] = 0 is not valid here. Write at least decimal 1.
R/W
D6
D6
D6
D5
D5
D5
Preliminary Rev. 0.4
D4
D4
D4
wtm[15:8]
wtm[7:0]
WUT
WUT
WUT
R/W
R/W
= (4 x M x 2
= (4 x M x 2
= (4 x M x 2
Function
Function
Function
D3
D3
D3
R
R
R
) / 32.768 ms. R = 0 is allowed, and the
) / 32.768 ms.
) / 32.768 ms.
wtr[4:0]
R/W
D2
D2
D2
D1
D1
D1
D0
D0
D0