LG KE990 Service Manual - Page 29

3. TECHNICAL BRIEF DCS _PCS _TX [GSM Dual SAW ] GSM _TX RF _ON [FEM] LSHS-M085FH Hitachi 5.4x4x1.2 DCS _PCS _OUT GSM _OUT [GSM PAM] TQM7M5003 Triquint 7x7x1.2 GSM _SAW _SW _MODE GSM _PA _RAMP From MSM 6280 GSM _PA _EN GSM _PA _BAND From MSM 6280 ANT _SEL [1:0] From MSM 6280 4BAND GSM RX (850/900 /DCS /PCS -- Balan ce ) 4 DAC _REF [RF Trance ive r ] RTR6275 QCT 8 x 8 x 0.9 PWR _DET _IN WLNA _IN WLNA _OUT SBDT VCONTROL SYNC _DET _TX_EN RX_BB _TX_BB Blue tooth LBRQ -2B43A LGIT SBST SBCK SBDT BT_TX_RX_N BT _DATA BT _SBST /CK /DT MSM 6280 MSM 6280 RTR 6275 _TCXO CLK _REF BT _CLK To MSM 6280 XTAL _IN OUT VCTCXO TG-5010 LH Epson 3.3X3.5X1 VCONT WMIX _INP WMIX _INN TCXO TRK _LO _ADJ To FEM ANT _SEL [1:0] TX_ON GRFX 6_GPIO 9 GRFC 7_GPIO 10 TX_ON_GRFC 10 To G -PAM GSM _PA _RAMP GSM _PA_EN GSM _PA _BAND PA _POWER _CTL GRFC 1_AUX _SBDT _GPIP 4 GRFC 2_GPIO 5 GSM _SAW _SW _MODE GRFC 5_AUX _SBST _GPIO 8 TX _IP //IM , TX _QP // QM RX _IP //IM , RX _QP //QM SSBDT _RTR DAC _REF VDDA 1 I_OUT MSM6280 I_OUT _N Q_OUT Q_OUT _N I_ IP_ CH 0 I_ IM _ CH 0 Q _ IP _ CH 0 Q _IM _ CH 0 SBST FM Radio & VGA CAMERA FM Radi o I/F I2C_SCL /DATA FM _INTX FM _ B USEN I2C_SCL _GPIO 27 I2C_SDA _GPIO 26 GRFC 4_AUX _SBCK _GPIO 7 GRFC 3_GPIO 6 BT I/F BT _CLK BT _SBST /CK /DT BT _TX _RX _N BT _DATA BT_CLK _GPIO 25 BT _SBST _GPIO 24 BT _SBCK _GPIO 23 BT_SBDT _GPIO 22 BT_TX_RX_N_GPIO 21 BT _DATA _GPIO 20 PA _ON 0 TRK _LO _ADJ From M MI FM_ANT RFIN 1 RFIN 2 FM Radio TEA 5766 UK Philips 3.35X3.3X0.64 BUSEN INTX CLOCK DATA VAFR VAFL FREQIN FM _B USEN FM _INTX I2C_SCL /DATA FM_AUDIO _R/L From MSM 6280 To MSM 6280 MSM 6280 To WM 8983 TCXO _PM 32.768 KHz TCXO _IN XTAL _OUT REF_OUT (MPP 8) PMIC PM6650 -2M QCT 7X7X0.8 SBDT BUFF _TCXO TCXO _EN XTAL _IN SLEEP _CLK GSM _PA _PWR _CTL _REF SSBDT _PM GSM _PA _DAC _REF SBCK TCXO TCXO _EN_GPIO 94 SLEEP _XTAL _IN Figure. Simplified Block Diagram of RF LGE Internal Use Only - 30 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes