si4430 Silicon Laboratories, si4430 Datasheet - Page 143

• Manufacturer Part Number: si4430
• Description: Si4430 Ism Transceiver
• Manufacturer: Silicon Laboratories

Register 72h. Frequency Deviation
Register 73h. Frequency Offset 1
Reset value = 00100000
Note: It's recommended to use modulation index of 1 or higher (maximum allowable modulation index is 32). The modulation
Reset value = 00000000
Reading from this register will give the AFC correction last results, not this register value.
Name
Name
Type
Type
Bit
Bit
7:0
7:0
Bit
Bit
index is defined by 2F
modulation index is defined by F
Name
fd[7:0]
Name
fo[7:0]
D7
D7
Frequency Deviation Setting.
See formula above.
Frequency Offset Setting.
The frequency offset can be calculated as Offset = 312.5 Hz x fo[7:0]. fo[9:0] is a twos
complement value. Reading from this register will give the AFC correction last results, not
this register value.
D6
D6
N
/F
R
were F
D
/R
D
B
D5
D5
is the deviation and R
.
Preliminary Rev. 0.4
D4
D4
fd[7:0]
fo[7:0]
R/W
R/W
B
is the data rate. When Manchester coding is enabled the
Function
Function
D3
D3
D2
D2
D1
D1
Si4430
D0
D0
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