RFM02 Datasheet, PDF (4/8 Pages) List of Unclassifed Manufacturers – Universal ISM Band FSK Transmitter

RFM02
Datasheet REV1.2
DC Characteristics：
symbol parameter
conditions/notes
min typ max unit
f_ref
PLL reference frequency
Parallel fundamental
9
10 11
MHz
433MHz band,2.5kHz step 430.24
439.75
f_o
Output frequency
（f_ref=10MHZ）
868MHz band,5.0kHz step 860.48
915MHz band,7.5kHz step 900.72
879.51 MHz
929.27
433MHz band,2.5kHz step 387.22
395.76
f_o
Output frequency（f_ref=9MHZ） 868MHz band,5.0kHz step 774.43
791.56 MHz
915MHz band,7.5kHz step 810.65
836.34
433MHz band,2.5kHz step 473.26
483.73 MHz
f_o
Output frequency（f_ref=11MHZ） 868MHz band,5.0kHz step 946.53
967.46
915MHz band,7.5kHz step 990.79
1022.2
t_lock
PLL lock time
After 10MHz step hopping,
20
μs
frequency error <10 kHz
t_sp
PLL start time
After crystal stabilized
250
μs
433MHz band
5
7
P_max
Max available ouput power
868MHz band
2
4
dBm
915MHz band
2
4
C_o
output capacitance(set by
low bands
antenna tuning circuit)
high bands
1.5
2.3 3.1
pF
1.6
2.2 2.8
Q_o
Q factor of output capacitance
16
18 22
BR_FSK FSK data rate
115.2 kbps
df_fsk
FSK deviation
30KHz step
30KHz
210
kHz
C_xl
crystal load capacitance
0.5pF
+/-10%
step,tolerance 8.5
16
pF
t_PBt
period of wake-up timer clock calibrated evry 30 seconds 0.95
1.05 ms
t_wake-up wake-up time(programable)
1
2*10E9 ms
t_POR
internal POR time
after power reached 90%
VDD
100
ms
t_sx
Crystal start time
ESR < 100 ohms
5
ms
Field testing range
operation band
condition
433MHz band
Bandwidth=134KHz, data rate=1.2kbps
Frequency deviation=60KHZ（matches with RFM01）
in free open area
868MHz band
Bandwidth=134KHz, data rate=1.2kbps
Frequency deviation=60KHZ（matches with RFM01）
in free open area
915MHz band
Bandwidth=134KHz, data rate=1.2kbps
Frequency deviation=60KHZ（matches with RFM01）
in free open area
range
>200m
>200m
>200m
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