CC2544_16 Datasheet, PDF (20/29 Pages) Texas Instruments – System-on-Chip for 2.4-GHz USB Applications

CC2544
SWRS103D – JUNE 2011 – REVISED MAY 2012
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−82
3.3-V Supply
T = 25°C
−83
TYPICAL CHARACTERISTICS (continued)
RX SENSITIVITY
vs
FREQUENCY
TX POWER
vs
FREQUENCY
6
3.3-V Supply
T = 25°C
TXPOWER = 4 dBm
5
−84
4
−85
3
−86
2400
2420
2440
2460
Frequency (MHz)
Figure 16.
2480
2
2400
2420
2440
2460
Frequency (MHz)
Figure 17.
RX INTERFERER REJECTION (SELECTIVITY)
vs
INTERFERER FREQUENCY
85
75 3.3-V Supply
T = 25°C
55 ^{Wanted signal at 2426 MHz}
35
15
−5
−25
−45
−65
−15
Wanted signal 3 dB above sensitivity limit
Wanted signal 10 dB above sensitivity limit
Wanted signal 30 dB above sensitivity limit
Wanted signal 50 dB above sensitivity limit
−10
−5
0
5
10
15
Frequency Offset (MHz)
Figure 18.
2480
20
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