EL7301

Introduction

Figure : EL7301 system block diagram application in dual interface

The EL7301 captures input RGB graphics signals directly through the use of the internal PLLs. Such

signals will then be converted to 8-bit digital data per channel. The output frequencies range is up to

the resolution of SXGA with very small jitter (typically equal to 800ps). Such advantage surely

provides high degree of flexibility and display quality for users while setting different level of

resolution

Etron's EL7301 is the key graphics processing IC that enable liquid Crystal Display (LCD) monitor at

SVGA, XGA and SXGA TFT-LCD resolution. This single chip solution included a triple-channel ADC,

two PLL circuits, one internal On Screen Display (OSD), sophisticated filter and the most advanced

scaling engine. The digital or video input can also be supported via analog/digital input ports that

implemented in EL7301.

1

Video

Decoder

VD[23:0]

NTSC/PAL/

SECAM

R/G/B

H-sync/V-sync

Triple

ADC

PLL

PLL

PD[47:0]

PHS/PVS/PDE

PCLK0

PCLK1

MPU

Optional

External

OSD

AD[7:0]

Controls

CS

R/G/B

25 MHz

X'tal

X'tal_I

De-

interlacer

EL7301

Core

TFT

Panel

Host

I/F

OSD

SoG

Processor

DVS/DHS

DDE/DCLK