User Guide

PAMS
Technical Documentation
NSB–1
System Module
Original 06/98
Page 3 – 26
RF Module
RF Frequency Plan
PLUSSA
UHF
PLL
VHF
PLL
13 MHz
VCXO
f
f/2f/4
f
LO–
buffers
3rd IF 13
2nd IF 87
1st IF 487
IF 400
3rd LO 100
2nd LO 400
CRFU2A
MOD.
Note: 1 All frequencies are in MHz
2 Underlined frequencies are DCS1800
3 Bold frequencies are DCS1900
4 Other frequencies are common to both systems
UHF
VCO
VHF
VCO
800
I and Q
1850.2–1909.8
1930.2–1989.8
RX
TX
RX=1443.2–1502.8
TX=1450.2–1509.8
DC Characteristics
Power Distribution Diagram
Current consumption of each regulator is shown in the following power
distribution diagram (Figure 2 shows maximum currents, Figure 3 shows
typical currents). On the left side of the figure, are the regulator control
signals. Above each regulator is the rated current for that regulator. The
name on the right side of the regulator block (smaller font) indicates the
signal name used on the schematics. On the far right side of the figure
are the pin names (power) for the different ICs.