LG GW520 - Page 29

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. BB Circuit Technical brief
GW520 service manual
MEM _BFCLK01
BFCLKO For Burst mode
MEM _BFCLK02
SDCLKI For Burst mode
MEM _CKE
CKE
Memory
FCDP_RBn
FCDP
FWP (GPIO_60)
_WP
TDMA I/F
T_OUT0
TXON_PA PAM
T_OUT1
N.A
T_OUT2
ANT_SEL1
T_OUT3 (GPIO_46)
SLIDE_KEY_LED
T_OUT4 (GPIO_47)
_CHG_EOC Charging terminate signal
T_OUT5 (GPIO_48)
MMC_DETECT SD card detect
T_OUT6
PA_MODE PAM
T_OUT7
ANT_SEL2
T_OUT8
ANT_SEL3
T_OUT9 (I2C2_SDA)
TOUCH_SDA
T_OUT10
DSR
T_IN0 (I2C2_SCL)
TOUCH_SCL
T_IN1 (GPIO_55)
CHG_EN Charging enable signal
RF I/F
RF_STR0
2G_EN
RF_STR1
_PPR Charger detect
RF_DATA
2G_DATA
RF_CLK
2G_CLK
GPIO[7]
3G_LD
GPIO[10]
3G_MASTER_ON
GPIO[15]
3G_PA_MODE1
GPIO[16]
ANT_SEL4
GPIO[17]
ANT_SEL5
GPIO[18]
ANT_SEL6
System Port
AFC
TO THE FLIPFLOP(AFC)
CLKOUT0
TO THE PLIPFLOP(26Mhz)
F26M
26MHZ 26M Main Clock
F32K
TO THE CRYSTAL(32.768khz)
to 32k crystal
OSC32K
TO THE CRYSTAL(32.768khz)
to 32k crystal
RESET_N
_RESET