Data Sheet

CC1101
SWRS061B Page 50 of 93
e.g 6
PA_POWER[2:0]
in FREND0 register
PATABLE(0)[7:0]
PATABLE(1)[7:0]
PATABLE(2)[7:0]
PATABLE(3)[7:0]
PATABLE(4)[7:0]
PATABLE(5)[7:0]
PATABLE(6)[7:0]
PATABLE(7)[7:0]
Index into PATABLE(7:0)
The PA uses this
setting.
Settings 0 to PA_POWER are
used during ramp-up at start of
transmission and ramp-down at
end of transmission, and for
ASK/OOK modulation.
The SmartRF® Studio software
should be used to obtain optimum
PATABLE settings for various
output powers.
Figure 22: PA_POWER and PATABLE
1100010Bit Sequence1
FREND0.PA_POWER = 3
FREND0.PA_POWER = 7
Time
PATABLE[0]
PATABLE[1]
PATABLE[2]
PATABLE[3]
PATABLE[4]
PATABLE[5]
PATABLE[6]
PATABLE[7]
Output Power
Figure 23: Shaping of ASK Signal