User Guide

TME-3 Company Confidential
Data Module RL7 PAMS Technical Documentation
Page 20 Nokia Corporation. Issue 4 12/03
DC characteristics
Regulators
The transceiver comprises a multifunction power management IC on baseband section,
which contains among other functions; 7 pcs of 2.78 V regulators and 4.8V up-switcher
for charge pump.
Use of the regulators can be seen in the Power Distribution Diagram. VrefRF01and
VrefRF02 are used as the reference voltages for HAGAR RF-IC, VrefRF01 (1.35V) for bias
reference and VrfeRF02 (1.35V) for RX ADC's reference.
Regulators (except VR2 and VR7) are connected to HAGAR. Different modes were
switched on by the aid of serial bus.
List of the supply voltages:
Typical current consumption:
Volt. source Load
VR1 PLL charge pump (4,8 V)
VR2 TX modulator
VR3 VCTCXO + buffer
VR4 HAGAR IC (LNAs+mixer+DTOS)
VR5 HAGAR IC (div+LO-buff+prescaler),
VR6 HAGAR (Vdd_bb)
VR7 VCO
VrefRF01 ref. voltage for HAGAR
VrefRF02 ref. voltage for HAGAR
VbattRF PA
Operation mode Current consumption Notes
Power OFF < 10 uA Leakage current (dual PA)
RX 81 mA, peak Includes synthesizer current
(28 mA)
TX, without PA 138 mA, peak
TX, power level 5, EGSM900 1700 mA, peak
TX, power level 0, DCS1800 1200 mA, peak