RFM210LW Datasheet, PDF (6/17 Pages) List of Unclassifed Manufacturers – Low-Cost Consumer Electronics Applications

RFM210LW
1.4 Crystal Oscillator
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Crystal Frequency^[1]
Crystal Tolerance^[2]
F_XTAL315
F_XTAL433.92
FRF = 315 MHz
FRF = 433.92 MHz
18.8744
26
±20
MHz
MHz
ppm
Load Capacitance
CLOAD
10
15
20
pF
Crystal ESR
Rm
Drive Level
60
Ω
100
uw
Aging Per Year
±2
ppm
XTAL Startup Time^[3]
tXTAL
400
us
Notes:
[1]. The RFM210LW can directly work with external reference clock input to XIN pin (a coupling capacitor is required)
with peak-to-peak amplitude of 0.3 to 0.7 V.
[2]. This is the total tolerance including (1) initial tolerance, (2) crystal loading, (3) aging, and (4) temperature dependence.
The acceptable crystal tolerance depends on RF frequency and channel spacing/bandwidth.
[3]. This parameter is to a large degree crystal dependent.
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Rev 1.0 | Page 6 / 17