User Guide

PAMS
Technical Documentation
NSB–1
System Module
Original 06/98
Page 3 – 28
Power Distribution – Typical Currents
RX mixer UHF
LNA
VR1 VCTCXO
VR3
VR4
VHF predivider
UHF predivider
charge pump
Dividers
UHF VCO + buffer
VHF VCO
UHF buffer RX+TX
VHF buffer + mix2
VR5
Receiver
detector/temp
TX upconverter
VR7
Transmitter
13mA
3.3mA
1.0mA
7mA
7mA
0.5mA
1.5mA
20mA
7.6mA
9.1mA
31mA
150 mA
49mA
32mA
battery TX PA
CRFU2a (V_RX)
PLUSSA (VP1)
PLUSSA (VP2)
PLUSSA (VCE1)
PLUSSA (VDD)
CRFU2a (V_UHF)
CRFU2a (V_VHF)
PLUSSA (VRX)
CRFU2a (V_TX)
PLUSSA (VTX)
RXPWR
VCXOEN
SYNPWR
TXPWR
TXP
0.8mA
1.1 A
VVCXO
VSYN_D
VSYN_A
VRX
VBAT
VTX
18mA
External
transistor
V5V
V5V
PA 45%
max. output
(32.5dBm)
Vbat=3.6V
charge pump
PLUSSA (VCE2)
0.5mA
PLUSSA (VOP)
2.4mA
14mA
TX buffer
Pwrcntrl opamp
VCTCXO buffer
0.7mA
PA gain control
70mA
VR4
VDET