ST7713 datasheet(64/159 Pages) SITRONIX

64 / 159 page

ST7713

Ver 1.6

2008-05

9.9.6.4 Power On Sequence on RGB Mode 2

The Driver operates power up and display ON by VDD, VDDI, SHUT, VS, HS, DE, PCLK on RGB mode 2 as show as

following figure.

VDD

VDDI

RESX

SHUT

PCLK

Display high

voltage

Display

Source output

Vcom output

Gate output

Internal counter

Internal

oscillator

TVDD-VDDI

TRS-SH

TVDD-SH

TPCLK-SH

TSH-LCD

TSH-ON

Display on

Normal display

Blanking display(over 1 frame)

Fig. 9.9.15 Power-ON sequence in RGB mode 2

Table 9.9.6.4 Power ON AC Characteristics

Characteristics

Symbol

Min

Typ

Max

Unit

Remark

VDD On to VDDI On

TVDD-VDDI

Note1

VDDI/VDD on to falling edge of SHUT

TVDD-SH

RESX to falling of SHUT

TRS-SH

Signals input to falling edge of SHUT *

TCLK-SH

PCLK

Note2

Falling edge of SHUT to LCD power ON

TSH-LCD

120

Falling edge of SHUT to Display start

TSH-ON

Note 1: TVDDI-VDD can be <=0ns, >0ns. In any case, VDDI and VDD power up sequence should not have any impact on

the driver / display functionalities / performance.

Note 2: Signals mean VS, HS, DE and PCLK signal.

Note 3: DP=’0’, EP=’0’, HSP=’0’ and VSP=’0’ of RGBCTR (B0h) command.

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