SI4431-A0-FM Silicon Laboratories Inc, SI4431-A0-FM Datasheet - Page 97
![IC TXRX ISM 930MHZ 3.6V 20-QFN](/photos/14/23/142339/si4431-a0-fm_sml.jpg)
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 0Dh. GPIO Configuration 2
Reset value = 00000000
Name
Type
Bit
7:6
4:0
Bit
5
gpiodrv2[1:0] GPIO Driving Capability Setting.
gpio2[4:0]
Name
pup2
D7
gpiodrv2[1:0]
R/W
Pullup Resistor Enable on GPIO2.
When set to 1 the a 200 kresistor is connected internally between VDD and the pin if the
GPIO is configured as a digital input.
GPIO2 pin Function Select.
00000:
00001:
00010:
00011:
00100:
00101:
00110:
00111:
01000:
01001:
01010:
01011:
01100:
01101:
01110:
01111:
10000:
10001:
10010:
10011:
10100:
10101:
10110:
10111:
11000:
11001:
11010:
11011:
11100:
11101:
else :
D6
Microcontroller Clock
Wake-Up Timer: 1 when WUT has expired (output)
Low Battery Detect: 1 when battery is below threshold setting (output)
Direct Digital Input
External Interrupt, falling edge (input)
External Interrupt, rising edge (input)
External Interrupt, state change (input)
ADC Analog Input
Reserved (Analog Test N Input)
Reserved (Analog Test P Input)
Direct Digital Output
Reserved (Digital Test Output)
Reserved (Analog Test N Output)
Reserved (Analog Test P Output)
Reference Voltage (output)
TX/RX Data CLK output to be used in conjunction with TX/RX Data pin (output)
TX Data input for direct modulation (input)
External Retransmission Request (input)
TX State (output)
TX FIFO Almost Full (output)
RX Data (output)
RX State (output)
RX FIFO Almost Full (output)
Antenna 1 Switch used for antenna diversity (output)
Antenna 2 Switch used for antenna diversity (output)
Valid Preamble Detected (output)
Invalid Preamble Detected (output)
Sync Word Detected (output)
Clear Channel Assessment (output)
VDD
GND
pup2
R/W
D5
Preliminary Rev. 0.4
D4
Function
D3
gpio2[4:0]
R/W
D2
D1
Si4431
D0
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