CC2541_12 Datasheet, PDF (22/33 Pages) Texas Instruments – 2.4-GHz Bluetooth™ low energy and Proprietary System-on-Chip

CC2541
SWRS110A – JANUARY 2012 – REVISED FEBRUARY 2012
TYPICAL CHARACTERISTICS (continued)
RX SENSITIVITY
vs
SUPPLY VOLTAGE
TX POWER
vs
SUPPLY VOLTAGE
−84
4
1 Mbps GFSK 250 kHz
TX Power Setting = 0 dBm
Standard Gain Setting
T_A = 25°C
T_A = 25°C
−86
2
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−88
0
−90
−2
−92
2
2.2 2.4 2.6 2.8 3
Voltage (V)
Figure 16.
3.2 3.4 3.6
G007
RX SENSITIVITY
vs
FREQUENCY
−84
1 Mbps GFSK 250 kHz
Standard Gain Setting
T_A = 25°C
−86
V_CC = 3 V
−88
−4
2
2.2 2.4 2.6 2.8 3
Voltage (V)
Figure 17.
3.2 3.4 3.6
G008
TX POWER
vs
FREQUENCY
4
TX Power Setting = 0 dBm
T_A = 25°C
V_CC = 3 V
2
0
−90
−2
−92
2400
2410
2420
2430 2440 2450 2460
Frequency (MHz)
Figure 18.
2470
2480
G009
−4
2400
2410
2420
2430 2440 2450 2460
Frequency (MHz)
Figure 19.
2470
2480
G010
Table 1. Output Power⁽¹⁾⁽²⁾
TXPOWER Setting
0xE1
0xD1
0xC1
0xB1
0xA1
0x91
0x81
0x71
0x61
0x51
0x41
Typical Output Power (dBm)
0
–2
–4
–6
–8
–10
–12
–14
–16
–18
–20
(1) Measured on Texas Instruments CC2541 EM reference design with T_A = 25°C, VDD = 3 V and f_c = 2440 MHz. See SWRU191 for
recommended register settings.
(2) 1 Mbsp, GFSK, 250-kHz deviation, Bluetooth™ low energy mode, 1% BER
22
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