2.2 AC Electrical Characteristics
Minimum/maximum values are valid over the recommended operating range Vcc = 1.9-3.6 V. Typical conditions: TO = 25°C; VCC = 3.3 V.
The electrical specifications given below are valid when using an RFM XTL1021 or equivalent crystal.
RECEIVER
PARAMETER
SYM
NOTES
MIN
TYP
MAX
UNITS
ohms
dBm
Test Conditions
RF Input Impedance
RF Input Power
200
differential
0
MHz
Receiver Bandwidth
1.5
-95
-90
9
10-3 BER
10-3 BER
250 kb/s
1 Mb/s
dBm
Receiver Sensitivity
Blocking Immunity
Co-channel Rejection
Image Rejection
250 kb/s
1 Mb/s
1 MHz offset,
unmodulated
dB
dB
dB
5
250 kb/s
1 Mb/s
-20
1
250 kb/s
1 Mb/s
-26
-26
kb/s
dB
NRZ
FSK Bit Rate
250
1000
±3
40
RSSI Accuracy
4-bit value
dB
RSSI Dynamic Range
Table 5
TRANSMITTER
NOTES
PARAMETER
SYM
MIN
TYP
200
0
MAX
UNITS
ohms
dBm
Test Condition
RF Output Impedance
RF Output Power
differential
dBm
dBm
programmable
RF Output Power Range
-20
0
1 Mb/s data rate,
0 dBm TX power
2nd Adjacent Channel Power
3rd Adjacent Channel Power
2 MHz channel offset
3 MHz channel offset
-20
-40
1 Mb/s data rate,
0 dBm TX power
dBm
2nd Harmonic
3rd Harmonic
-54
-46
dBm
dBm
0 dBm TX power
0 dBm TX power
fixed for both
data rates
kHz
FSK Deviation
±160
1
MHz
20 dB Modulation BW
Table 6
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Page 6 of 33
TRC104 - 08/13/09
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