User Guide

CCS Technical Documentation System Module
RH-17
Issue 1 04/2003 Nokia Corporation Confidential Page 9
VrefRF01 is reference voltage for VIO, VCORE, VSIM regulators, and for RF.
VANA regulator supplies internal and external analog circuitry of BB. It's disabled in
sleep mode.
Vflash1 regulator supplies LCD and digital parts of UEM ASIC. It is enabled during startup
and goes to low Iq-mode in sleep mode.
Vflash2 regulator is not used on RH-17. It could be enabled/disenabled through writing
register and default is off.
VIO regulator supplies both external and internal logic circuitries. It's used by LCD, flash,
Robin, Batman, and UPP. Regulator goes in to low Iq-mode in sleep mode.
VCORE regulator supplies DSP and Core part of UPP. Voltage is programmable and the
startup default is 1.5V. Regulator goes to low Iq-mode in sleep mode.
VR1 regulator uses two LDOs and a charge pump. This regulator is used by Robin RF ASIC
(VR1B) and synthesizer circuits (VR1A).
VR2 is a linear regulator used to supply Robin RF ASIC and the detector circuitry.
VR3 is a linear regulator used by Robin RF ASIC and VCTCXO circuitry.
VR4 is a linear regulator used by the PLL and UHF VCO circuitry.
VR5 is a linear regulator used by the Batman RFIC and the Alfred RF ASIC.
VR6 is a linear regulator used by Robin RF ASIC and TX LO buffer.
VR7 is a linear regulator used by Batman RF ASIC.
BB RF
VANA: 2.78Vtyp 80mAmax VR1a:4.75V 12mAmax
VR1b:4.75V 12mAmax
Vflash1: 2.78Vtyp 70mAmax
Vflash2: 2.78Vtyp
40mAmax
VR2:2.78V 100mAmax
VSim: 1.8/3.0V 25mAmax VR3:2.78V 20mA
VIO: 1.8Vtyp
150mAmax
VR4: 2.78V 50mAmax
Vcore: 1.0-1.8V
200mAmax
VR5: 2.78V 50mAmax
VR6: 2.78V 50mAmax
VR7: 2.78V 45mAmax