LG GW620 - H;W Sub System

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. Technical Brief
3.14 H/W Sub System
3.14.1. RF Interface
A. RTR6285 (WCDMA_Tx, GSM_Tx/Rx)
MSM7200A controls RF part(RTR6285) using these signals.
y SSBDT : SSBI I/F signals for control Sub-chipset
y TX_ON : Power AMP on RF part
y RX0_I/Q_M/P,TX_I/Q_M/P : I/Q for T/Rx of RF
y TX_AGC_ADJ : control the gain of the Tx signal prior to the power amplifier
y DAC_REF : Reference input to the MSM Tx data DACs
B. the others
y TRK_LO_ADJ : TCXO(19.2M) Control
y PA_ON0/PA_RANGE0 : WCDMA(2100) TX Power Amp Enable
y ANT_SEL[0-3] : Ant Switch Module Mode Selection(WCDMA,GSM Tx/Rx,DCS-PCS Tx/Rx)
y GSM_PA_BAND : GSM/DCS-PCS Band Selection of Power Amp
y GSM_PA_RAMP : Power Amp Gain Control of APC_IC
y GSM_PA_EN : Power Amp Gain Control Enable of APC_IC
C. ALM2412 (A-GPS LNA)
* GPS_LNA_EN : GPS LNA Enable Saignal (GPS LNA Shutdown)
D. LBEH19UNBC (BT / WiFi module )
1. WiFi
* WLAN_CMD : WLAN SDIO Command Line.
* WLAN_CLK : WLAN SDIO Clock Input.
* WLAN_SDIO[3:0] : WLAN SDIO Data Line.
* WLAN_RESET_N : Low asserting reset for WLAN core.
* WLAN_HOST_WAKEUP : WL_HOST_WAKE signal output.
2. BT
* BT_UART_RXD : Bluetooth UART Serial Input.
* BT_UART_RTS : Bluetooth UART Request to Send. Active-low request.
* BT_UART_CTS : Bluetooth UART Clear to Send. Active-low clear.
* BT_UART_TXD : Bluetooth UART Serial Output.
* BT_PCM_CLK : BT PCM clock, can be PCM-master (output) or PCM-slave (input).
* BT_PCM_IN : BT PCM data input.
* BT_PCM_SYNC : BT PCM sync signal, can be PCM-master (output) or PCM-slave (input).
* BT_PCM_OUT : BT PCM data output.
* BT_WAKEUP : BT Wakeup Input.
* BT_HOST_WAKEUP : BT Host Wakeup Output
* BT_RESET_N : Low asserting reset for BT core.