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10MHz to 1050MHz Integrated
RF Oscillator with Buffered Outputs
TYPICAL OPERATING CIRCUIT PERFORMANCE—900MHz Band Ceramic-
Resonator-Based Tank
( Typical Operating Circuit , V CC = +3.0V, V TUNE = 1.5V, SHDN = V CC, load at OUT = 50 ? , load at OUT = 50 ? , L1 = coaxial ceramic
resonator: Trans-Tech SR8800LPQ1357BY, C6 = 1pF, T A = +25°C, unless otherwise noted.)
PARAMETER
Tuning Range
Phase Noise
V TUNE = 0.5V to 3.0V
SSB at ? f = 25kHz
SSB at ? f = 300kHz
CONDITIONS
MIN
TYP
±13
-110
-132
MAX
UNITS
MHz
dBc/Hz
At OUT (Note 2)
-6
-2
Output Power (Single-Ended)
Noise Power
Average Tuning Gain
Second-Harmonic Output
Load Pull
Supply Pushing
At OUT, per test circuit of Figure 1; T A = -40°C to +85°C
(Note 3)
At OUT (Note 3)
f O ± >10MHz
VSWR = 1.75:1, all phases
V CC stepped from 3V to 4V
-11
-16
-8
-12.5
-147
11
-29
163
71
dBm
dBm/Hz
MHz/V
dBc
kHz P-P
kHz/V
Note 3: Guaranteed by design and characterization.
TYPICAL OPERATING CIRCUIT PERFORMANCE—900MHz Band Inductor-Based Tank
( Typical Operating Circuit , V CC = +3.0V, V TUNE = 1.5V, SHDN = V CC, load at OUT = 50 ? , load at OUT = 50 ? , L1 = 5nH (Coilcraft
A02T), C6 = 1.5pF, T A = +25°C, unless otherwise noted.)
PARAMETER
Tuning Range
Phase Noise
V TUNE = 0.5V to 3.0V
SSB at ? f = 25kHz
SSB at ? f = 300kHz
CONDITIONS
MIN
TYP
±15
-107
-127
MAX
UNITS
MHz
dBc/Hz
At OUT (Note 2)
-6
-2
Output Power (single-ended)
Noise Power
Average Tuning Gain
Second-Harmonic Output
Load Pull
Supply Pushing
At OUT, per test circuit of Figure 1; T A = -40°C to +85°C
(Note 3)
At OUT (Note 3)
f O ± >10MHz
VSWR = 1.75:1, all phase angles
V CC stepped from 3V to 4V
-11
-16
-8
-12.5
-147
13
-29
340
150
dBm
dBm/Hz
MHz/V
dBc
kHz P-P
kHz/V
Note 3: Guaranteed by design and characterization.
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3
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