SI4431-A0-FM Silicon Laboratories Inc, SI4431-A0-FM Datasheet - Page 88
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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
Si4431
88
Bit
Bit
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Table 32. Detailed Description of Status Registers when not Enabled as Interrupts
ipreainval Self cleaning, user should use this as an interrupt source rather than a status.
ipreaval
ichiprdy
ipreainval Self cleaning, user should use this as an interrupt source rather than a status.
Status
Name
iswdet
ipreaval
ichiprdy
Status
iswdet
Name
irssi
iwut
ipor
ilbd
irssi
iwut
ipor
ilbd
Goes high once the Sync Word is detected. Goes low once we are done receiving the cur-
Goes high once the preamble is detected. Goes low once the sync is detected or the RX
Should remain high as long as the RSSI value is above programmed threshold level
Low Battery Detect. When a low battery event is been detected this bit will be set to 1. This
rent packet.
wait for the sync times-out.
Wake time timer interrupt. Use as an interrupt, not as a status.
interrupt event is saved even if it is not enabled by the mask register bit and causes an inter-
rupt after it is enabled. Probably the status is cleared once the battery is replaced.
Chip ready goes high once we enable the xtal, TX or RX and a settling time for the Xtal clock
elapses. The status stay high unless we go back to Idle mode.
Power on status.
Goes high once the Sync Word is detected. Goes low once we are done receiving the cur-
rent packet.
Goes high once the preamble is detected. Goes low once the sync is detected or the RX
wait for the sync times-out.
Should remain high as long as the RSSI value is above programmed threshold level
Wake time timer interrupt. Use as an interrupt, not as a status.
Low Battery Detect. When a low battery event is been detected this bit will be set to 1. This
interrupt event is saved even if it is not enabled by the mask register bit and causes an
interrupt after it is enabled. Probably the status is cleared once the battery is replaced.
Chip ready goes high once we enable the xtal, TX or RX, and a settling time for the Xtal
clock elapses. The status stay high unless we go back to Idle mode.
Power on status.
Table 31. Interrupt or Status 2 Bit Set/Clear Description
Preliminary Rev. 0.4
Set/Clear Conditions
Set/Clear Conditions