User Guide

PAMS Technical Documentation System Module
NSB-5
Issue 1 03/01 Nokia Mobile Phones Ltd. Page 79
* PLL is locked to 400MHz
VHF VCO and Lowpass Filter
Table 41: VHF VCO and lowpass filter specifications
Phase
comparison frequency
1MHz
Charge pump output 0.5 mA
Sink to source current
matching error of the
charge pump
+/- 5 %
Charge pump current
error
+/- 10 %
Charge pump min. output
voltage
0.5 V
Charge pump max. output
voltage
VCE-0.5 V
Charge pump leakage
current
5nA
Phase detector phase
noise level
-163 dBc/Hz
Parameter Minimum
Typical/
Nominal
Maximum Unit/Notes
Control voltage 0.5 4.0 V
Operation frequency 800 MHz
Output level -7 -5 -3 dBm
Output impedance 50 ohms
Harmonics -10 dBc
Phase noise,
fo +/- 600 kHz
fo +/- 1600 kHz
fo +/- 3000 kHz
-123
-133
-143
dBc
Control voltage sensitiv-
ity
8910 MHz/V
Frequency Pulling Figures
due to load variations +/- 1 MHz
due to supply variations +/- 1 MHz/V
due to temp variations +/- 3 MHz, -20...+75
Parameter Minimum
Typical/
Nominal
Maximum Unit/Notes