Si4012-C1-GT Silicon Laboratories Inc, Si4012-C1-GT Datasheet - Page 41

• Manufacturer Part Number: Si4012-C1-GT
• Description: RF Transmitter 27-960 MHz RF Transmitter
• Manufacturer: Silicon Laboratories Inc

5.2.11. PROPERTY: PA_CONFIG
Format:
Note: fAlphaSteps specifies the number of steps advancing from the minimum supported value –0.075 with 0.0006 per step.
fBetaSteps specifies the number of steps advancing from the minimum supported value –0.254 with 0.002 per
step. The maximum fBeta is +0.254. fBeta is computed using the formula below:
Purpose:
Property:
Fields:
The maximum fAlpha is +0.075. fAlpha is computed using the formula below:
PA_CONFIG
PROP_DATA1
PROP_DATA2
PROP_DATA3
PROP_DATA4
PROP_DATA5
PROP_DATA6
Property
PROP_ID





PA max current driver, PA level, PA cap, alpha steps and beta steps.
0x60
PaMaxDrv
PaLevel[6:0] – PA level calculated from Spreadsheet. Default 70.
PaCap[8:0]
fAlphaSteps[7:0] – PA Alpha steps, default 125
fBetaSteps[7:0] – PA Beta steps, default 127
7
– Allows for maximum current drive, calculated from Spreadsheet. Default 1.
– PA cap. Default 128.
6
f
ALPHASTEPS
f
BETASTEPS
5
Rev 0.2
=
=
4

------------------------------------------ -

-------------------------------------- -
Alpha
Beta
fAlphaSteps[7:0]
fBetaSteps[7:0]
0.0006
0.002
PaCap[7:0]
+
+
3
0x60
0.254
0.075
PaLevel[6:0]


2
1
PaMaxDrv
PaCap[8]
0
Si4012
41