LG KG920 - Page 32

3. TECHNICAL BRIEF
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C. RF interface
The AD6527 controls RF parts through PA_BAND, ANT_SW1, ANT_SW2, CLKON, PA_EN, S_EN,
S_DATA, S_CLK, RF_RST.
Signals Description
PAM Band Select PA_BAND (GPO 17)
ANT_SW1 (GPO 9) Antenna switch Band Select
ANT_SW2 (GPO 11) Antenna switch Band Select
CLKON RF LDO Enable/Disable
PA_EN (GPO 16) PAM Enable/Disable
S_EN (GPO 19) PLL Enable/Disable
S_DATA (GPO 20) Serial Data to PLL
S_CLK (GPO 21) Clock to PLL
RF_RST(GPO 10) Power down Input
Table 3-4. RF CONTRON SIGNALS DISCRIPTION