Manual

RF22
Version: 0.1 Date: 12/23/2008
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49
10. Measurement Results
Sensitivity vs. Data Rate
Measured at RX SMA Connector Input
-120 dBm
-118 dBm
-116 dBm
-114 dBm
-112 dBm
-110 dBm
-108 dBm
-106 dBm
-104 dBm
-102 dBm
-100 dBm
1 kbps 10 kbps 100 kbps 1000 kbps
Data Rate
RXPower for 1E-3 BER
Note:
Sensitivity is BER measured, GFSK modulation, BT=0.5, H=1.
Adjacent Channel Selectivity at 50 kbps
Measured at RX SMA Connector Input
-60 dB
-50 dB
-40 dB
-30 dB
-20 dB
-10 dB
0 dB
10 dB
-1.00
MHz
-0.75
MHz
-0.50
MHz
-0.25
MHz
0.00
MHz
0.25
MHz
0.50
MHz
0.75
MHz
1.00
MHz
Interferer Frequency Offset
C/I
AGC Enabled
Figure 43. Sensitivity vs. Data Rate Figure44-1. Receiver Selectivity
Adjacent Channel Selectivity at 50kbps (log scale)
Measured at RX SMA Connector Input
-80 dB
-70 dB
-60 dB
-50 dB
-40 dB
-30 dB
-20 dB
-10 dB
0 dB
10 dB
0.01 MHz 0.10 MHz 1.00 MHz 10.00 MHz
Interferer Frequency Offset
C/I
AGC Enabled
Output Power vs. VDD
0.00 dBm
2.00 dBm
4.00 dBm
6.00 dBm
8.00 dBm
10.00 dBm
12.00 dBm
14.00 dBm
16.00 dBm
18.00 dBm
20.00 dBm
2.0V 2.5V 3.0V 3.5V
VDD Voltage
Output Power
Figure44-2. Receiver Selectivity Figure 45. TX Output Power vs. VDD voltage
Output Power vs Temp
16.0 dBm
16.5 dBm
17.0 dBm
17.5 dBm
18.0 dBm
18.5 dBm
19.0 dBm
-40C -20C 0C 20C 40C 60C 80C 100 C
Temperature (deg C)
Output Power
Figure 46. TX Output Power vs Temperature Figure 47. TX Modulation
(40 kbps, 20 kHz Deviation)