Si4430/31/32-B1
8
Rev 1.1
Table 2. Synthesizer AC Electrical Characteristics
1
Parameter
Symbol
Conditions
Min    Typ    Max   Units
Synthesizer Frequency
RangeSi4431/32
F
SYN
240

930    MHz
Synthesizer Frequency
RangeSi4430
F
SYN
900

960    MHz
Synthesizer Frequency
Resolution
2
F
RES-LB
Low Band, 240480 MHz
   156.25   
Hz
F
RES-HB
High Band, 480960 MHz
    312.5    
Hz
Reference Frequency
Input Level
2
f
REF_LV
When using external reference signal
driving XOUT pin, instead of using
crystal. Measured peak-to-peak (V
PP
)
0.7

1.6
V
Synthesizer Settling Time
2
t
LOCK
Measured from exiting Ready mode with
XOSC running to any frequency.
Including VCO Calibration.

200

Residual FM
2
DF
RMS
Integrated over ?50 kHz bandwidth
(500 Hz lower bound of integration)

2
4    kHz
RMS
Phase Noise
2
Lf(f
M
)
DF = 10 kHz

80
    dBc/Hz
DF = 100 kHz

90
    dBc/Hz
DF = 1 MHz

115
    dBc/Hz
DF = 10 MHz

130
    dBc/Hz
Notes:
1.  All specification guaranteed by production test unless otherwise noted. Production test conditions and max limits are 
listed in the "Production Test Conditions" section on page 14.
2. Guaranteed by qualification. Qualification test conditions are listed in the "Production Test Conditions" section on 
page 14.
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