White backlight application plan circuit of a telephone PDA

Published:2011/4/20 9:13:00 Author:Nicole | Keyword: White backlight, telephone | From:SeekIC

AAT3112 contains drive white backlight, flashing light and RGB tri-color light. In this application, using VOUT1 output of AAT3112 as backlight output, VOUT2 connects to the I/O expansion chip AAT4290/1 of AnalogicTechTM, it is used as RGB light control and flashing light control. Using AnalogicTechTM’s S2Cwire control technique to control the voltage output of OUT1～OUT5. OUT1～OUT5 output can control the R、G、B lights, the OUT4 and OUT5 of AAT4290 is used to control the flashing light and flashlight mode output.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Electrical_Equipment_Circuit/White_backlight_application_plan_circuit_of_a_telephone_PDA.html

Print this Page | Comments | Reading(3)