si4430 Silicon Laboratories, si4430 Datasheet - Page 130

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

Register 5Ah. VCO Current Trimming
Register 5Bh. VCO Calibration/Override
Si4430
Reset value = 00000011
Reset value = 00000000
130
Name
Name
Type
Type
Bit
5:2
1:0
6:0
Bit
Bit
Bit
7
6
7
txcurboosten
vcocalov/vcdone
calov/vcdone
txcurboosten If this is Set, then vcocur = 11 during TX Mode and VCO CAL followed by TX.
vcocorr[3:0]
vcocur[1:0]
vcocal[6:0]
vcocorrov
R/W
Name
Name
D7
vco-
R/W
D7
vcocorrov
VCO Current Correction Override.
VCO Current Correction Value.
VCO Current Trim Value.
VCO Calibration Override/Done.
When vcocalov = 0 the internal VCO calibration results may be viewed by reading the
vcocal register. When vcocalov = 1 the VCO results may be overridden externally
through the SPI by writing to the vcocal register. Reading this bit gives 1 if the calibration
process has been finished.
VCO Calibration Results.
R/W
D6
D6
D5
D5
Preliminary Rev. 0.4
D4
D4
vcocorr[3:0]
R/W
Function
Function
vcocal[6:0]
D3
R/W
D3
D2
D2
D1
D1
vcocur[1:0]
R/W
D0
D0