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7. Block Diagrams
7-1
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7-1 RF/BB Block Diagram
Modem
(BCM21331)
* GSM850
Rx : 869 ~ 894MHz
Tx : 824 ~ 849MHz
* GSM900
Rx : 925 ~ 960MHz
Tx : 880 ~ 915MHz
* DCS
Rx : 1805 ~ 1880MHz
Tx : 1710 ~ 1785MHz
* PCS
Rx : 1930 ~ 1990MHz
Tx : 1850 ~ 1910MHz
C
KEYPAD
RF Block
VBAT
Tx module
(RF7173)
SIM
GSM850RX/GSM9000RX/DCSRX/PCSRX
SIMIO
SIM_RST
SIMCLK
M
GSM850TX/GSM900TX/DCSTX/PCSTX
VC1 / VC2 / TX_EN
26MHz
SIMVCC
KEY_COL(0:2)
KEY_ROW(0:2)
PMIC
(MAX8991)
LCD
TSP
Bluetooth / FM radio
Combo
<BCM20780>
3.5PHI Earphone Ant
BT Ant
UBTX / UBRX /UBRTS / UBCTS
PCM_IN / PCM_OUT / PCM_SYNC /
PCM_CLK / CLK32K / BT_CLK
3.0V_DIG_BT /
V_BT_1.2V
FM_LOUT / FM_ROUT
SD CARD
AMP_P / AMP_N
EAR_R / EAR_L /
FM_ROUT / FM_LOUT
Audio Line
EARJACK_R / EARJACK_L
SPK_P / SPK_L
FSA9280
(USB SWITCH)
MICRO USB
VBUS
JIG_ID
VBAT
VBUS_IF_5V
ACC_DET
DP / DM
DP/DM
UARTA_RXD / UARTA_TXD
SCL / SDA
USB_INT
(BCM21331)
3.5PI HEADSET
13X18
ENCLOSURE
TYPE
MEMORY
(K522H1HACC)
1Gb DDRAM
2Gb NAND
DA(0:13) / DDQ(0:15) / FADQ(0:15)
1.8V_MEMORY
DBA0, DBA1,DCKE, DCLK
NAND_ALE, NAND_CLE, NR DY, NANDCEN
OEN, WEN, FWP
SIM Socket
NC7WZ86L8X
MOT_FREQ
MOT_INVERT,
MOT_PDM
3.2V_VIB
TOUCH_SDA,TOUCH_SCL,
TOUCH_INT,TOUCH_RST
MIC2844
LCD_BL_EN
LED1,LED2,LED3,
LED4,LED5,LED6
VOUT
LCD B/L Driver IC
LCD_D(0:7)
LCD_RESET,LCDRS,WR,CS,RD,FLM,VGH
2.9V_LCD
PONKEY
(END KEY)
BB_RESET
3.5PI EAR MIC
RCV MIC
SPK MIC
Analog switch
(DG2735DTN)
RCV
SD1DAT(0:3)
DETECT_SD,SD1CLK,SD1CMD
3.2V_SD
Vibtonz
Y(0:7)
HSYNC,VSYNC,M_CLK,P_CLK
CAM_RESET,CAM_SDA,CAM_SCL
2.8V_CAM_IO , CAM_CORE_1.8V ,
CAM_A_2.8V
BT_WAKE , HOST_WAKE
BT_PWR
BCM4319
<WIFI>
SD2DAT(0:3)
SD2CLK_WIFI , SD2CMD_WIFI
COEX0,COEX1,COEX2
XM2400SN-
AL0901
WIFI_RESET
VBAT_WIFI,VBAT,VDD_PLL
SCL/SDA
PMU_IRQ
32.768kHz
PC
Backup BAT
3.0V_ANLG
CAM_A_2.8V
2.8V_CAM_IO
CAM_CORE_1.8V
3.2V_VIB
3.0V_TOUCH
1.2V_ANLG
1.3V_VRF
3.0V_AMP1
3.2V_SD
2.9V_LCD
3.3V_USB_NVRAM
2.7V_VRF
2.5V_USBOTG
1.3V_VCXO
SIMVCC
3.0V_DIG