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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
The backlight of LCD module is controlled by AD6726 via AAT2845.
The control signals related to Backlight LED are given as follows.
Signals Description
LCD_DIM_CTRL
Control LCD backlight level in 16 steps
MLED
Current source for backlight LED
MLED[1:2]
This pins are returned-paths for backlight LED current
source (MLED)
Table 3.5.B2 DESCRIPTION OF LCD BACKLIGHT LED CONTROL
C. RF interface
The AD6726 control RF parts through PA_BAND, ANT_SW, CLKON , PA_EN, S_EN, S_DATA, S_CLK
Table 3.5.C RF CONTROL SIGNALS DESCRIPTION
Clock to PLLS_CLK (GPO 21)
Serial Data to PLLS_DATA (GPO 20)
PAM Enable/Disable
PA_EN (GPO 16)
PLL Enable/DisableS_EN (GPO 19)
PAM Band Select
PA_BAND (GPIO 0)
Antenna switch Band SelectANT_SW (GPO 9)
DescriptionSignal
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