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3. TECHNICAL BRIEF
The backlight of LCD module is controlled by AD6724 via AAT3157.
The control signals related to Backlight LED are given bellow.
C. RF interface
The AD6724 control RF parts through PA_BAND, ANT_SW, PA_EN, S_EN, S_DATA, S_CLK
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Signals
Description
MLED
Current source for backlight LED
LCD_BACKLIGHT_CTRL
Control LCD backlight level in 16 steps
MLED[1:2]
This pins are returned-paths for backlight LED current source (MLED)
Table 3.5.B2 DESCRIPTION OF LCD BACKLIGHT LED CONTROL
Signals
Description
PA_BAND (GPO 3)
PAM Band Select
ANT_SW (GPO 9)
Antenna switch Band Select
PA_EN (GPO11)
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
Table 3.5.C RF CONTROL SIGNALS DESCRIPTION
Содержание KP110
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