SI4431-A0-FM Silicon Laboratories Inc, SI4431-A0-FM Datasheet - Page 91
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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 07h. Operating Mode and Function Control 1
Reset value = 00000001
Name
Type
Bit
Bit
7
6
5
4
3
2
1
0
swres
x32ksel
R/W
Name
D7
swres
enlbd
enwt
pllon
txon
rxon
xton
Software Register Reset Bit.
This bit may be used to reset all registers simultaneously to a DEFAULT state, without the
need for sequentially writing to each individual register. The RESET is accomplished by
setting swres = 1. This bit will be automatically cleared.
Enable Low Battery Detect.
When this bit is set to 1 the Low Battery Detector circuit and threshold comparison will be
enabled.
Enable Wake-Up-Timer.
Enabled when enwt = 1. If the Wake-up-Timer function is enabled it will operate in any
mode and notify the microcontroller through the GPIO interrupt when the timer expires.
32,768 kHz Crystal Oscillator Select.
0:
1:
TX on in Manual Transmit Mode.
Automatically cleared in FIFO mode once the packet is sent. Transmission can be
aborted during packet transmission, however, when no data has been sent yet, transmis-
sion can only be aborted after the device is programmed to “unmodulated carrier” ("Reg-
ister 71h. Modulation Mode Control 2").
RX on in Manual Receiver Mode.
Automatically cleared if Multiple Packets config. is disabled and a valid packet received.
TUNE Mode (PLL is ON).
When pllon = 1 the PLL will remain enabled in Idle State. This will for faster turn-around
time at the cost of increased current consumption in Idle State.
READY Mode (Xtal is ON).
enlbd
R/W
D6
RC oscillator
32 kHz crystal
enwt
R/W
D5
Preliminary Rev. 0.4
x32ksel
R/W
D4
Function
txon
R/W
D3
rxon
R/W
D2
pllon
R/W
D1
Si4431
xton
R/W
D0
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