Only For Training And Service Purposes - LG TU550 Service Manual

3. TECHNICAL BRIEF
B. RFR6202(WCDMA_Rx)
• SBST,SBDT,SBCK : SBI I/F signals for control Sub-chipset
• RX0_I/Q_M/P : I/Q for Rx of RF
C. RFL6202(WCDMA_Rx_LNA)
• SBST,SBDT,SBCK : SBI I/F signals for control Sub-chipset
D. the others
• UHF_BAND_SEL : WCDMA(3G) VCO Band Selection of UHF VCO
• UHF_VCO_0_EN : WCDMA(3G) UHF VCO Enable
• TRK_LO_ADJ : TCXO(19.2M) Control
• PA_ON0 : WCDMA(1900) TX Power Amp Enable
• PA_ON1: WCDMA(850) TX Power Amp Enable
• ANT_SEL[0-2] : Ant Switch Module Mode Selection(WCDMA,GSM Tx/Rx,DCS-PCS Tx/Rx)
• GSM_PA_BAND : GSM/DCS-PCS Band Selection of Power Amp
• GSM_PA_RAMP : Power Amp Gain Control of APC_IC
• GSM_PA_EN : Power Amp Gain Control Enable of APC_IC
• GSM_TX_VCO_0_EN_N : GSM Band Tx VCO Enable of Dual VCO
• GSM_TX_VCO_1_EN_N : DCS-PCS Band Tx VCO Enable of Dual VCO
3.11.2 MSM Sub System
3.11.2.1. USIM Interface
SIM interface scheme is shown in Figure.
And, there control signals are followed
• USIM_CLK : USIM Clock
• USIM_Reset : USIM Reset
• USIM_Data : USIM Data T/Rx
MSM6275
LGE Internal Use Only
PM6650
USIM CLK
USIM Reset
USIM Data
Figure. SIM Interface
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VREG_UIM 2.85V
USIM CLK
USIM Reset
USIM
USIM Data
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Only for training and service purposes