CC2550_13 Datasheet, PDF (31/61 Pages) Texas Instruments – Low-Cost Low-Power 2.4 GHz RF Transmitter

CC2550
PATABLE(7)[7:0]
PATABLE(6)[7:0]
PATABLE(5)[7:0]
PATABLE(4)[7:0]
PATABLE(3)[7:0]
PATABLE(2)[7:0]
PATABLE(1)[7:0]
PATABLE(0)[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
OOK modulation.
Index into PATABLE(7:0)
e.g 6
PA_POWER[2:0]
in FREND0 register
The SmartRF® Studio software
should be used to obtain optimum
PATABLE settings for various
output powers.
Figure 19: PA_POWER and PATABLE
Output Power, Typical,
+25^oC, 3.0 V [dBm]
(–55 or less)
–30
–28
–26
–24
–22
–20
–18
–16
–14
–12
–10
–8
–6
–4
–2
0
1
PATABLE
Value
0x00
0x44
0x41
0x43
0x84
0x82
0x47
0xC8
0x85
0x59
0xC6
0x97
0xD6
0x7F
0xA9
0xBF
0xEE
0xFF
Current Consumption,
Typical [mA]
8.0
9.3
9.2
9.7
9.8
9.7
10.0
11.6
10.2
11.6
11.2
12.0
12.9
14.7
16.2
18.1
19.4
21.3
Table 20: Optimum PATABLE Settings for Various Output Power Levels
SWRS039B
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