RFM02 Datasheet, PDF (6/24 Pages) List of Unclassifed Manufacturers – Universal ISM Band FSK Transmitter

RFM02
Vlba
Low battery detection accuracy
+/-3
%
Vlb
Low battery detector threshold
Programmable in 2.2
0.1 V steps
5.3
V
Vil
Digital input low level
Vih
Digital input high level
0.7*Vdd
0.3*Vdd V
V
Iil
Digital input current
Vil = 0 V
-1
1
µA
Iih
Digital input current
Vih = Vdd, Vdd = 5.4 -1
V
1
µA
Vol
Digital output low level
Iol = 2 mA
0.4
V
Voh
Digital output high level
Ioh = -2 mA
Vdd-0.4
V
AC Characteristic
Symbol
Parameter
Conditions/Notes
Min Typ Max _Units
PLL reference
fref
frequency
Crystal operation mode is
parallel (Note 2)
9
10
11
MHz
433MHz band, 2.5kHz
430.24
439.75
resolution
868MHz band, 5.0kHz
860.48
879.51
fo
MHz
resolution
915MHz band, 7.5kHz
900.72
929.27
resolution
Frequency error < 10 kHz after
20
tlock PLL lock time
10 MHz step, POR default PLL
µs
setting(Note 7)
tsp PLL startup time
After turning on from idle
mode, with crystal oscillator
already stable, POR default
PLL setting (Note 7)
250
µs
Open collector output
IOUT
At all bands
current (Note 3)
0.5
6
mA
Available output power With opt. antenna impedance
8
PmaxL
(433MHz band)
(Note 4)
Available output power
6
With opt. antenna impedance
PmaxH (868 and 915 MHz
(Note 4)
band)
Selectable in 3 dB steps (Note Pmax-21
Pout Typical output power
3)
Psp Spurious emission
At max power with loop
antenna (Note 5)
Pmax
-50
dBm
dBm
dBm
dBc
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