SI4431-A0-FM Silicon Laboratories Inc, SI4431-A0-FM Datasheet - Page 109

• 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

Register 21h. Clock Recovery Offset 2
Register 22h. Clock Recovery Offset 1
Reset value = 00000001
The offset can be calculated as follows:
The default values for register 20h to 23h gives 40 kbps RX_DR with Manchester coding is disenabled.
Reset value = 01000111
Name
Name
Type
Type
Bit
Bit
7:5
3:0
7:0
Bit
Bit
4
ncoff[19:16]
rxosr[10:8]
ncoff[15:8]
stallctrl
Name
Name
D7
D7
rxosr[10:8]
Oversampling Rate.
Upper bits.
Used for BCR Purposes.
NCO Offset.
See formula above.
NCO Offset.
See formula above
R/W
D6
D6
ncoff
D5
D5

Rb
500
Preliminary Rev. 0.4

1 (

stallctrl


R/W
1
D4
D4
enmanch

2
ncoff[15:8]

R/W
dwn
)
3
Function
Function

_
D3
D3
2
bypass
20

ndec
_
exp

D2
D2
ncoff[19:16]
R/W
D1
D1
Si4431
D0
D0
109