RF2958 Просмотр технического описания (PDF) - RF Micro Devices
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RF2958 Datasheet PDF : 20 Pages
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RF2958
Power Control Register 10 (PCNT1)-Address 01010
Location
Bit Name Default
Function
PCNT1(17:15)
PCNT1(14:9)
PCNT1(8:3)
PCNT1(2:0)
MID_BIAS(2:0)
000
P_DESIRED
(5:0)
PC_OFFSET
(5:0)
TX_DELAY
(2:0)
000000
000000
000
Used to setup the voltage provided by the PA_BIAS AMPLIFIER to deter-
mine the BIAS VOLTAGE to provide to the PA when the desired output
power is MID_POWER. The MID_BIAS selection will select a VOUT on
PBIAS between 1.6V and 2.6V.
User selectable desired output power at antenna. The 5 MSB’s are integer
portion in dBm. The LSB is 0.5dBm. Example: +19.5dBm is represented by
100111.
User programmable offset to adjust to process/board variations in the
power control loop. This is a 2’s-complement value with the LSB equal to
0.5 dB.
User programmable delay to allow a single TX_PE line to be used to enable
the BBP and the radio function. Programmable in 0.5us increments from
0us to 3.5us.
Power Control Register 11 (PCNT2)-Address 01011
Location
Bit Name Default
Function
PCNT2(17:12)
PCNT2(11:6)
PCNT2(5:0)
MAX_POWER
(5:0)
MID_POWER
(5:0)
MIN_POWER
(5:0)
000000
000000
000000
User programmable MAX output power provided when PABIAS=2.6V. This
allows the power control function to be customized for various PA’s. The 5
MSB’s are integer portion in dBm. The LSB is 0.5dBm.
User programmable MAX output power provided when
PABIAS=MID_BIAS. This allows the power control function to be custom-
ized for various PA’s. The 5 MSB’s are integer portion in dBm. The LSB is
0.5 dBm.
User programmable MAX output power provided when PABIAS=1.6V. This
allows the power control function to be customized for various PA’s. The 5
MSB’s are integer portion in dBm. The LSB is 0.5dBm.
VCOT1 Register 1 (VCOT1)-Address 01100
Location
Bit Name Default
VCOT1(17)
AUX
0
VCOT1(16)
AUX1
0
VCOT1(15:0)
Reserved
0
Test Register 1 (TEST)-Address 11011
This is a test register for internal use only.
Function
IF VCO Band Current Compensation
0 = disabled
1 = enabled
RF VCO Band Current Compensation
0 = disabled
1 = enabled
Reserved, program to zero (0)
11-278
Rev A0 050209
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