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PX8700
LG Electronics Inc.
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[Figure 2-2] Block Diagram of Digital/Voice Processing Part
2.3.4 Memory Part
MCP contents 512Mbits NAND FLASH memory and 256Mbits SDRAM. In the NAND Flash Memory part of
MCP are programs used for terminal operation. The programs can be changed through downloading after the
assembling of terminals. On the SDRAM data generated during the terminal operation are stored temporarily.
2.3.5 Power Supply Part
When the battery voltage (+4.0V) is fed and the PWR key of keypad is pressed, U402(PMIC) is activated by the
PWR_ON_SW signal, and The PWRON signal is held high, Buck and LDO1,2,3 are turned on; when LDO1
reaches 87% of its final value a 60ms reset timer is started at after which RESET\ is asserted high. Now the
BB Processor is initialized and will assert PWRHOLD high. PWRHOLD maintains the power on.
The Buck/LDO1,2,3 are generating the +1.4V_MSMC, +2.6V_MSMA, +1.8V_MSMP1 and +2.8V_LCD
respectively.
The Rx part LDO(Out5) is operated by the control signal SLEEP/ from MSM6550
The Tx part LDO(Out7) is operated by the control signal IDLE/ from MSM6550.
The TCXO part LDO(U403) is operated by the control signal TCXO_EN/ from MSM6550.
Peripheral Circuits
PLL
HK ADC
Microprocessor Bus
Address/Data
General-Purpose Interface Bus
JTAG Interfaces
Rx
ADCs
RF
Interface
TX
DACs
AUX
SBI
SBI
Vocoder
EVRC
13k
MP4
MIDI
QDSP4000
Integrated
CODEC
MODE Select
Interface
ETM
gpsOne
Processor
UART1
UART2
UART3/USB
ARM9
TDMI
Memory
Controller
General-
Purpose
Interface
Camera module
(1.3M C-MOS)
PC
Connectivity
Test/Debug
System
Digital Test Bus
JTAG
Keypad input
RFT6100
RFR6000
MSM6500
Mobile Station Modem
VCTCXO
19.2MHz
1 2 3
4 5 6
7 8 9
*
#
0
POWER
Amplifier
LCD
Memory
NAND Flash(512Mb)
LP-SDRAM(256Mb)
EAR
External
EAR/MIC
KEYPAD, BEZEL,
SIIDEKEY
MIC
Audio AMP
Data Comm
DM
USB
USB
Transceiver
BATTERY
HDET
INNER CHG
+2.9V_Rx_LDO
DFM
Processor
CDMA
Processor
RF Controls
2
Speaker
LDO
CAMIF
Bluetooth
Baseband
Processor
B/T Chip
Antenna
Bluetooth RF
2
Peripheral Circuits
PLL
HK ADC
Microprocessor Bus
Address/Data
General-Purpose Interface Bus
JTAG Interfaces
Rx
ADCs
RF
Interface
TX
DACs
AUX
SBI
SBI
Vocoder
EVRC
13k
MP4
MIDI
QDSP4000
Integrated
CODEC
MODE Select
Interface
ETM
gpsOne
Processor
UART1
UART2
UART3/USB
ARM9
TDMI
Memory
Controller
General-
Purpose
Interface
Camera module
(1.3M C-MOS)
PC
Connectivity
Test/Debug
System
Digital Test Bus
JTAG
Keypad input
RFT6150
RFR6500
MSM6500
Mobile Station Modem
VCTCXO
19.2MHz
1 2 3
4 5 6
7 8 9
*
#
0
POWER
Amplifier
LCD
Memory
NAND Flash(512Mb)
LP-SDRAM(512Mb)
EAR
External
EAR/MIC
KEYPAD, BEZEL,
SIIDEKEY
MIC
Audio AMP
Data Comm
DM
USB
USB
Transceiver
BATTERY
HDET
INNER CHG
+2.9V_Rx_LDO
DFM
Processor
CDMA
Processor
RF Controls
2
Speaker
LDO
CAMIF
Bluetooth
Baseband
Processor
B/T Chip
Antenna
Bluetooth RF
2
Содержание PX8700
Страница 40: ...PX8700 LG Electronics Inc 40 Circuit Diagram ...
Страница 42: ...PX8700 LG Electronics Inc 42 Circuit Diagram Waveform SBCK0 SBCK0 SBST0 SBDT0 Graph 4 1 1 c Graph 4 1 1 d ...
Страница 44: ...PX8700 LG Electronics Inc 44 Waveform Graph 4 1 1 e Graph 4 1 1 f U103 Pin U104 Pin DP101 Pin 3 Graph 4 1 1 g ...
Страница 45: ...PX8700 LG Electronics Inc 45 Circuit ...
Страница 47: ...PX8700 LG Electronics Inc 47 Graph 4 1 1 i Graph 4 1 1 h RX0_QP RX0_IP RX0_IM Circuit Waveform RX0_QM ...
Страница 51: ...PX8700 LG Electronics Inc 51 Circuit Diagram ...
Страница 53: ...PX8700 LG Electronics Inc 53 Circuit Diagram Waveform SBCK0 SBCK0 SBST0 SBDT0 Graph 4 1 2 c Graph 4 1 2 d ...
Страница 55: ...PX8700 LG Electronics Inc 55 Waveform Graph 4 1 2 e Graph 4 1 2 f U103 Pin U104 Pin Graph 4 1 2 g DP101 Pin ...
Страница 56: ...PX8700 LG Electronics Inc 56 Circuit ...
Страница 58: ...PX8700 LG Electronics Inc 58 Graph 4 1 2 i Graph 4 1 2 h RX0_QP RX0_IP RX0_IM Circuit Waveform RX0_QM ...
Страница 62: ...PX8700 LG Electronics Inc 62 Circuit Diagram RFT6150 PMIC 2 9V_TX 2 6V_MSMP2 circuit ...
Страница 70: ...PX8700 LG Electronics Inc 70 RF_IN Graph 4 2 1 6 RF_OUT Circuit Diagram Waveform ...
Страница 84: ...PX8700 LG Electronics Inc 84 Graph 4 2 2 5 RF_OUT RF_IN Waveform Circuit Diagram ...
Страница 90: ...4 3 1 2 Charging Trouble Circuit Diagram Test Points V_BATT Pin1 CON401 U402 ...
Страница 96: ...4 3 4 Audio 4 3 4 1 Speaker Trouble Test Points Circuit Diagram C113 U106 R144 U103 C112 C110 L103 ...
Страница 98: ...4 3 4 2 Receiver Trouble Test Points Circuit Diagram R314 U305 R315 C338 ...
Страница 100: ...4 3 4 4 Headset Trouble Circuit Diagram Test Points CON402 R405 R416 R415 C116 C115 ...
Страница 103: ...4 3 4 3 Mic Trouble Circuit Diagram Test Points R126 M101 ...
Страница 108: ...4 3 6 2 Micro SD Detect Circuit Diagram PMIC Test Points CON105 C140 C141 C138 C136 C313 C142 C139 C137 U302 ...
Страница 110: ...4 3 6 3 USB Interface Circuit Diagram U201 MSM6550 U302 Test Points R307 X202 R306 L302 C314 ...
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Страница 130: ...MSM6550 P N MSM6550 R N U201 No Booting Memory P N HYG0UGG0MF1P 5SH0E R N U304 No Booting ...
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Страница 139: ...DCN Tx DCN Rx PCS Tx PCS Rx ...
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Страница 147: ...D 1 Accessories 0 1 1 14 0 11 4 1 2 2 1 1 11 4 31 11 1 1 0 1 1 ...