CC3220 Datasheet, PDF (28/84 Pages) Texas Instruments – SimpleLink Wi-Fi Wireless and Internet-of-Things Solution, a Single-Chip Wireless MCU

CC3220
SWAS035A – SEPTEMBER 2016 – REVISED FEBRUARY 2017
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4.7 TX Power and IBAT versus TX Power Level Settings
Figure 4-1, Figure 4-2, and Figure 4-3 show TX Power and IBAT versus TX power level settings for the
CC3220R and CC3220S devices at modulations of 1 DSSS, 6 OFDM, and 54 OFDM, respectively. For
the CC3220SF device, the IBAT current has an increase of approximately 10 mA to 15 mA depending on
the transmitted rate. The TX power level will remain the same.
In Figure 4-1, the area enclosed in the circle represents a significant reduction in current during transition
from TX power level 3 to level 4. In the case of lower range requirements (14-dBm output power), TI
recommends using TX power level 4 to reduce the current.
19.00
17.00
15.00
13.00
1 DSSS
Color by
TX Power (dBm)
IBAT (VBAT @ 3.6 V)
280.00
264.40
249.00
233.30
11.00
218.00
9.00
202.00
7.00
186.70
5.00
171.00
3.00
155.60
1.00
140.00
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
TX power level setting
Figure 4-1. TX Power and IBAT vs TX Power Level Settings (1 DSSS)
19.00
17.00
15.00
13.00
6 OFDM
Color by
TX Power (dBm)
IBAT (VBAT @ 3.6 V)
280.00
264.40
249.00
233.30
11.00
218.00
9.00
202.00
7.00
186.70
5.00
171.00
3.00
155.60
1.00
140.00
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
TX power level setting
Figure 4-2. TX Power and IBAT vs TX Power Level Settings (6 OFDM)
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Specifications
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