Power Block - LG -P940 Service Manual

3.8 Power Block

3.8.1 General
Since P940 uses two individual chips, XMM6260 (IFX Modem) uses integrated PMIC and OMAP4430 uses
TWL6030 as a main PMIC.
3.8.2 XMM6260 (IFX Modem)
Confidential
X-GOLD™ 626 is a GSM/UMTS/GPRS/EDGE/HSDPA/HSUPA Baseband Controller with integrated modem power
management unit. This system on chip is designed with the latest low power CMOS process technologies which
1.1 PMU Block diagram
provides significant performance to meet the ever increasing demands of the cellular subscriber market for
feature rich terminals at lowest power consumption and a very competitive cost position.
Ball
FSS
VREF
C
VREF
AGND
ANAMON
VSIM
C
VSIM
VPMU
C
VPMU
VRTC
C C
VRTC_BUF VRTC
VUSB_IO
C
VUSB_IO
VPLL
C
VPLL
VUSB_ANA
C
VUSB_ANA
VUSB_PD
C
VUSB_PD
Figure 1 PMU Overview
LGE Internal Use Only
eFuses Digital Control
SSC
Bandgap
ANAMON
LSIM
XGOLD626 PMU
LPMU
LRTC
LUSB_IO
LPLL
LUSB_ANA
LUSB_PD
Figure. LGP940 Modem Power Block Diagram
Figure. LGP940 Modem Power Block Diagram
MU
SD1
SD2
LIO_12
POR
OSC
Battery DCDC
Supervision Supervision
C Battery
VDD_VBAT
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3. TECHNICAL BRIEF
X-GOLD™ 626
PMU Sub-System
General Overview
VDD_VBAT_SD1
L
SD1
2x SD1_SW
SD1_FB
C C
VSD1 VDD_SD1
VSS_SD1
VDD_VSD2
VDD_VBAT_SD2
L
SD2
2x SD2_SW
SD2_FB
C C
VSD2 VDD_SD2
VSS_SD2
VIO_12
C
VIO_12
RESET_PWRDWN_N
Only for training and service purposes
B
V
B
V