HE84G762B datasheet(29/60 Pages) KB

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KING BILLION ELECTRONICS CO., LTD

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HE84G762B

HE80004 Series

June 1, 2004

V0.92

This specification is subject to change without notice. Please contact sales person for the latest version before use.

10. LCD Power Supply

The built-in LCD power supply is equipped with input voltage regulator, voltage multiplier and bias

voltage generating circuit with active buffer instead of passive resistor voltage dividing network. If the

external LCD power is provided, the internal LCD power system shall be disabled. The following table

shows the relationship of the LCD power system

LCDE(LCDC BIT0)

MO_PSMODE[1:0]

Function

Internal voltage multiplier and Bias voltage

generating circuit are enable to supply the

LCD display power.

Internal voltage multiplier is enabled, but the

Bias voltage generating circuit is disabled,and

the external power sources are applied

LV4~LV1.

Internal voltage multiplier is disabled, but the

Bias voltage generating circuit is enabled.

The single external power is applied to LV5,

and internal bias circuit will generate the

LV4~LV1 voltages.

Internal voltage multiplier and Bias voltage

generating circuit are disabled, and the

external power sources are applied to

LV5~LV1.

The lcd power system is disable,but the LV5~

LV1 is applied to VDD .

The lcd power system is disable,but the LV5

is applied to VDD and LV4~LV1 is applied to

hight impedance.

The lcd power system is disable, LV5 is

applied to hight impedance,and the LV4~LV1

Applied to LV5.

The lcd power system is disable, LV5~LV1 is

applied to hight impedance.

HE84G762B Datasheet(PDF) 29 Page - King blillion Electronics Co.,Ltd.

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