Si4114G
8 Rev. 1.1
Table 5. RF Synthesizer Characteristics
(V
DD
= 2.7 to 2.9 V, T
A
= –20 to 70 °C)
Parameter
1
Symbol Test Condition Min Typ Max Unit
XIN Input Frequency f
REF
13 — 26 MHz
Reference Amplifier Sensitivity V
REF
0.5 — V
DD
+0.3
V
PP
Phase Detector Update Frequency f
φ
f
φ
= f
REF
/R — 200 — KHz
RF1 Tuning Range
1840 — 1990 MHz
RF2 Tuning Range 1710 — 1840 MHz
RF1 VCO Pushing Open loop — 500 — kHz/V
RF2 VCO Pushing — 400 — kHz/V
RF1 VCO Pulling VSWR = 2:1, all
phases, open loop
— 400 — kHz
PP
RF2 VCO Pulling — 100 — kHz
PP
RF1 Phase Noise
2
1 MHz offset — –132 –130.5 dBc/Hz
1.6 MHz offset — –137 –135.5 dBc/Hz
3 MHz offset — –142 –140.5 dBc/Hz
RF1 Integrated Phase Error 100 Hz to 100 kHz — 1.0 — deg rms
RF2 Phase Noise
2
1 MHz offset — –134 –132 dBc/Hz
1.6 MHz offset — –139 –137 dBc/Hz
3 MHz offset — –144 –142 dBc/Hz
RF2 Integrated Phase Error 100 Hz to 100 kHz — 0.8 — deg rms
RF1 Harmonic Suppression Second Harmonic — –26 — dBc
RF2 Harmonic Suppression — –26 — dBc
RFOUT Power Level
3
RF1 active, Z
L
= 50 Ω –6 –2.4 0 dBm
RFOUT Power Level
3
RF2 active, Z
L
= 50 Ω –6.5 –4 0 dBm
RF1 Reference Spurs
2
Offset = 200 kHz — –70 –63 dBc
Offset = 400 kHz — –75 –67 dBc
Offset = 600 kHz — –80 –70 dBc
RF2 Reference Spurs
2
Offset = 200 kHz — –67 –63 dBc
Offset = 400 kHz — –71 –67 dBc
Offset = 600 kHz — –75 –70 dBc
Powerup Request to Synthesizer Ready
Time, RF1, RF2
4
t
pup
Figures 4, 5 — 140 — µs
Powerdown Request to Synthesizer Off
Time
5
t
pdn
Figures 4, 5 — — 100 ns
Notes:
1.
RF1 = 1.92 GHz, RF2 = 1.78 GHz for all parameters unless otherwise noted.
2. Maximum values guaranteed by design.
3. RF1 = 1.90 GHz, RF2 = 1.80 GHz, T
A
= –10 to +55 °C.
4. From powerup request (PWDN↑ or SEN↑ during a write of 1 to bit PDRB in Register 2) to RF synthesizers ready
(settled to within 0.1 ppm frequency error). Typical settling time to 5 degrees phase error is 120
µs.
5. From powerdown request (PWDN↓, or SEN↑ during a write of 0 to bit PDRB in Register 2) to supply current equal to
I
PWDN
.
