CC2540F128 Datasheet, PDF (22/34 Pages) Texas Instruments – 2.4-GHz Bluetooth® low energy System-on-Chip

CC2540F128, CC2540F256
SWRS084C – OCTOBER 2010 – REVISED NOVEMBER 2011
TYPICAL CHARACTERISTICS (continued)
RX SENSITIVITY
vs
SUPPLY VOLTAGE
TX POWER
vs
SUPPLY VOLTAGE
-87
5
-87.2 ^{Gain = Standard Setting}
T_A = 25°C
-87.4
4.8 ^{TA = 25°C}
TX Power Setting = 4 dBm
4.6
-87.6
4.4
-87.8
4.2
-88
4
-88.2
3.8
-88.4
3.6
-88.6
3.4
-88.8
3.2
-89
2
2.2 2.4 2.6 2.8 3 3.2 3.4 3.6
Supply Voltage (V)
G007
Figure 15.
3
2 2.2 2.4 2.6 2.8 3 3.2
Supply Voltage (V)
Figure 16.
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3.4 3.6
G008
-87
-87.2
-87.4
-87.6
RX SENSITIVITY
vs
FREQUENCY
Gain = Standard Setting
T_A = 25°C
V_CC = 3 V
-87.8
-88
-88.2
-88.4
-88.6
-88.8
-89
2400
2410
2420
2430 2440 2450 2460
Frequency (MHz)
Figure 17.
2470
2480
G009
RX INTERFERER REJECTION (SELECTIVITY)
vs
INTERFERER FREQUENCY
60
50
40
30
20
10
0
-10
2400
2410
2420
Gain = Standard Setting
T_A = 25°C
V_CC = 3 V
Wanted Signal at 2426 MHz
with -67 dBm Level
2430 2440 2450 2460 2470 2480
Frequency (MHz)
G010
Figure 18.
TX POWER
vs
FREQUENCY
5
4.8 ^{TA = 25°C}
TX Power Setting = 4 dBm
4.6 V_CC = 3 V
4.4
4.2
4
3.8
3.6
3.4
3.2
3
2400
2410
2420
2430 2440 2450 2460
Frequency (MHz)
Figure 19.
2470
2480
G011
22
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