RFM23
Table 2. Synthesizer AC Electrical Characteristics
1
Parameter
Synthesizer Frequency
Range
Synthesizer Frequency
Resolution
2
Reference Frequency
Reference Frequency
Input Level
2
Synthesizer Settling
Time
2
Residual FM
2
Symbol
Conditions
Low Band
High Band
Low Band
High Band
fcrystal /3
When using reference frequency
instead of crystal. Measured
peak-to-peak (VPP)
Measured from leaving Ready mode
Min
240
480
—
—
—
0.7
Typ
—
—
156.25
312.5
10
—
Max
480
930
—
—
—
1.6
Units
MHz
MHz
Hz
Hz
MHz
V
F
SYNTH-LB
F
SYNTH-HB
F
RES-LB
F
RES-HB
f
REF
f
REF_LV
t
LOCK
△F
RMS
Lφ (f
M
)
with XOSC running to any frequency
includ-ing VCO Calibration
Integrated over
±250
kHz bandwidth
(500 Hz lower bound of integration)
△F
= 10 kHz
△F
= 100 kHz
△F
= 1 MHz
△F
= 10 MHz
—
200
—
μs
—
—
—
—
—
2
–80
–90
–115
–130
4
—
—
—
—
kHz
RMS
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
Phase Noise
2
Notes:
1.
All specification guaranteed by production test unless otherwise noted.
2.
Guaranteed by qualification.
5
Tel: +86-755-82973805
Fax: +86-755-82973550
E-mail: sales@hoperf.com
http://www.hoperf.com
HOPERF [ Hope Microelectronics co., Ltd ]
