Bb Circuit Technical Brief; Functional Block Diagram; Baseband Processor Introduction - LG GM310 Service Manual

3. BB Circuit Technical brief

3.1 Functional Block Diagram

RF Part RF Part RF Part
RF
GSM/EDGE 850/900/1800/1900 GSM/EDGE 850/900/1800/1900 GSM/EDGE 850/900/1800/1900
FEM FEM FEM
FEM
Transceiver
Transceiver Transceiver Transceiver
PMB6952
EDGE EDGE EDGE
PAM PAM PAM
EDGE
UMTS UMTS UMTS
UMTS 1900 or 2100 UMTS 1900 or 2100 UMTS 1900 or 2100
LNA LNA LNA
UMTS
Duplex Duplex Duplex
Duplex
UMTS UMTS UMTS
PAM PAM PAM
UMTS
Duplex Duplex Duplex
Duplex
UMTS 850 or 900 UMTS 850 or 900 UMTS 850 or 900
UMTS
BATTERY BATTERY
BATTER
900mAh 900mAh
Y

3.2 Baseband Processor Introduction

[Figure 3.2] Top level block diagram of the MPEH(PMB8868)
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3M Camera 3M Camera 3M Camera
Memory
Sub Keypad Sub Keypad
Memory Memory
1Gb Nand 1Gb Nand
1Gb Nand
512Mb SDRam 512Mb SDRam
Backup Backup
LDO LDO
LDO LDO Ba
Battery Battery
26M 26M 26M
BaseBand Processor
PMB6952 PMB6952 PMB6952
PMB8868
BaseBand Processor BaseBand Processor
U
32K 32K 32K
Charging IC Charging IC
18Pin-MMI 18Pin-MMI
18Pin -MMI 18Pin -MMI
ISL9221 ISL9221
Connector Connector
Connector Connector
18Pin-MMI
Charging
TA TA USB USB
TA TA USB USB
TA USB
[Figure 3.1] Functional Block Diagram
GM310f service manual
Main Keypad Main Keypad Main Keypad
Touch IC Touch IC Motor IC Motor IC
Touch IC Touch IC
Mic Mic
N
Hall IC Hall IC
Hall IC Hall IC
Charge Charge
Charge Charge
Pump Pump
Pump Pump
MP3 Chip
PMB8868 PMB8868
MP3 Chip MP3 Chip
TCC8121 TCC8121
TCC8121
High speed USB High speed USB
Switch Switch
Switch Switch
F
PMIC
S
PMIC PMIC
Fu
PMB6821 PMB6821
PMB6821
ll
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3. BB Circuit Technical brief
Motor Motor
Motor IC Motor IC
Mot
QVGA LCD(240 x 320) QVGA LCD(240 x 320) QVGA LCD(240 x 320)
Micro SD Micro SD
Micro SD Micro SD
Micro
Switch Switch
Switc
3.5 Φ 3.5 Φ
Ear-phone Ear-phone 3.5Φ
Audio Amp Audio Amp
LM49150 LM49150
Audio
RCV/SPK RCV/SPK RCV/SPK
Filter Filter Filter
BT / FM Radio BT / FM Radio
RBCA-B561A RBCA-B561A
BT / FM
LGE Internal Use Only