User Guide

PAMS Technical Documentation System Module
NSB-5
Issue 1 03/01 Nokia Mobile Phones Ltd. Page 81
GSM1900 UHF VCO module
Table 44: UHF VCO specifications
Sink to source current
matching error of the
charge pump
+/- 5 %
Charge pump current
error
+/- 10 %
Charge pump leakage
current
5nA
Phase detector phase
noise level
-163 dBc/Hz
Parameter Minimum
Typical/
Nominal
Maximum Unit/Notes
Control voltage (Vc) V
Oscillation frequency 1443.2 1509.8 MHz
TX frequency range 1450.2 1509.8 MHz
RX frequency range 1443.2 1502.8 MHz
Tuning voltage at center
frequency
2.02.252.5 V
Tuning voltage sensitivity 29 33 37 MHz/V
Output power level -4.0 dBm
Output impedance 50 ohms
VSWR 2
Phase noise,
fo +/- 25 kHz
fo +/- 600 kHz
fo +/- 1600 kHz
fo +/- 3000 kHz
-100
-120
-130
-140
dBc/Hz
Pulling figure -1 1 MHz
Pushing figure -1 1 MHz
Frequency stability over
temperature range
-3 3 MHz
Harmonics -10 dBc
Spurious -70 dBc
Input capacitance at
Vc-pin
100 pF
Parameter Minimum
Typical/
Nominal
Maximum Unit/Notes