CC2540F128 Datasheet, PDF (23/34 Pages) Texas Instruments – 2.4-GHz Bluetooth® low energy System-on-Chip

CC2540F128, CC2540F256
www.ti.com
SWRS084C – OCTOBER 2010 – REVISED NOVEMBER 2011
TYPICAL CHARACTERISTICS (continued)
Table 1. Output Power and Current Consumption⁽¹⁾⁽²⁾
Typical Output Power (dBm)
4
0
–6
–23
Typical Current Consumption (mA)
32
27
24
21
Typical Current Consumption With
TPS62730 (mA)
24.6
21
18.5
16.5
(1) Measured on Texas Instruments CC2540 EM reference design with T_A = 25°C, VDD = 3 V and f_c = 2440 MHz. See SWRU191 for
recommended register settings
(2) Measured on Texas Instruments CC2540TPS62730 EM reference design with T_A = 25°C, VDD = 3 V and f_c = 2440 MHz. See
SWRU191 for recommended register settings
CC2540 Current Consumption
TX 4dBm
35
TYPICAL CURRENT SAVINGS
CC2540 Current Consumption
RX SG CLKCONMOD0x80
40
25
40
30
25
20
15
10
5
0
2.1
2.4
2.7
3
Supply (V)
35
30
25
20
15
10
5
0
3.3
3.6
20
15
DC/DC ON
DC/DC OFF
% Current Savings
10
5
0
2.1
2.4
2.7
3
Supply (V)
35
30
25
20
15
10
5
0
3.3
3.6
DC/DC ON
DC/DC OFF
Current Savings
Figure 20. Current Savings in TX at Room Temperature
Figure 21. Current Savings in RX at Room Temperature
The application note (SWRA365) has information regarding the CC2540 and TPS62730 como board and the
current savings that can be achieved using the como board.
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