RFM22B/23B
Table 2. Synthesizer AC Electrical Characteristics
Parameter
Symbol
Conditions
Min
Typ
Max Units
433MHz band
413
848
901
453
888
929
MHz
MHz
MHz
Synthesizer Frequency
Range—RFM22B/23B
F
868MHz band
915MHz band
SYN
Synthesizer Frequency
Resolution
F
433MHz Band
—
—
156.25
312.5
—
—
—
Hz
Hz
V
RES-LB
RES-HB
REF_LV
F
868/915MHz Band
Reference Frequency
Input Level
f
When using external reference signal
driving XOUT pin, instead of using
0.7
1.6
crystal. Measured peak-to-peak (V
)
PP
Synthesizer Settling Time
t
Measured from exiting Ready mode with
XOSC running to any frequency.
Including VCO Calibration.
—
—
200
2
—
4
µs
LOCK
Residual FM
Phase Noise
F
Integrated over 250 kHz bandwidth
(500 Hz lower bound of integration)
kHz
RMS
RMS
L(f )
F = 10 kHz
F = 100 kHz
F = 1 MHz
F = 10 MHz
—
—
—
—
–80
–90
—
—
—
—
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
M
–115
–130
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