User Guide

PAMS Technical Documentation System Module & UI
NHM-8NX
Issue 1 05/02 ãNokia Corporation Page 69
All regulators can be controlled individually with 2.78V logic directly or through control
register.
Use of the regulators can be seen in the power distribution diagram. VrefRF01 is used as
the reference voltages for the RX ADC`s reference in Mjoelner.
The regulators are connected to Mjoelner, either directly or through output loading net-
works. The individual regulator can be switched on/off through the serial data bus in
order to reduce the power consumption.
List of the needed supply voltages:
Volt. source Load
VR1a Mjoelner, charge pump
VR2 Mjoelner, VTX (TX modulator, BB_buffer)
VR3 Mjoelner, VXO (VCXO - digital logic)
VR4 Not used
VR5 Mjoelner, VPLL (Dividers - lo_buffers - PLL_charge –
PLL_prescaler-PLL_counters)
VR6 Mjoelner, VRX (Front_end LNA- Pre_gain – BB section)
VR7 VCO module
VrefRF01 Mjoelner, VREF1 (ref. Voltage)
VrefRF02 Not used
VIO Mjoelner, VBB (Dig_com)
Vbatt PA
Typical current consumption
The table shows the typical current consumption in different operation modes.
Table 35: Typical current consumption
Operation mode Current Con-
sumption
Notes
Power OFF < 10uA Leakage current (dual PA)