Voltage Regulators And Voltage Converters - Siemens SXG 75 Service Repair Documentation

8.2 Voltage regulators and voltage converters

The table below lists the voltage supplies of the PM6650. Note that the rated current is the current at
which the regulator meets all its performance specifications. Higher currents are allowed but higher
input voltages may be required and some performance characteristics may become degraded.
PM6650 Supply Net
Supply Source Name
VREG_RFRX_ VREG_RFRX_
1 0
VREG_RFRX_ VREG_RFRX_
2 1
VREG_RFTX VREG_RFTX
VREG_PA
(Step-down
(not used)
Switcher)
VREG_SYNT VREG_SYNTH
VREG_TCXO VREG_TCXO
VREG_MSMP VREG_MSMP
Technical Documentation
TD_Repair_L3_SXG75_R1.0.pdf
Voltage Voltage
range set to
1.50 -3.05V 2.85V
(150mA)
1.50 -3.05V
(150mA)
2.85V
1.50 -3.05V
2.85V
(150mA)
0.75 -3.05V
Vari-
(500mA)
able
1.50 -3.05V
(50mA)
2.85V
1.50 -3.05V
(50mA)
2.85V
1.50 -3.05V 2.6V
(300mA)
Company Confidential
2006©BenQ
Baseband Supplies
D1300 (Bluetooth
clock buffer),
V2100 (IrDA),
N1600 (Bluetooth IC),
D1900/1901 (Camera
Bus Switch), D800
(MSM6250 VDD_P3,
VDD_P4),
Z1200 (EMIF05MUX)
Release 1.0
RF Supplies
N200 (Antenna
switch),
D500
(RTR6250),
RF3188
WCDMA PA.
N600
(RFR6250)
Z402 (power
detector), D500
(RTR6250),
Z300 (GSM
VCO)
Not used
D500
(RTR6250),
Z1000 (TCXO),
N600
(RFR6250),
N600
(RFR6250),
D500
(RTR6250),
D1800 (FM
Radio),
01/2006
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