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EL7301
DATA SHEET
1.0 May 2002 Version: Date: Approval:
Etron technology, Inc
P.O. Box 19-54 No.6 Technology Road V. Science-based Industrial Park, Hsinchu,30077 Taiwan, R.O.C. Tel: 886-3-5782345 Fax: 886-3-5633037 http://www.etron.com
EL7301
Introduction
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. 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
Figure : EL7301 system block diagram application in dual interface
NTSC/PAL/ SECAM
Video Decoder
VD[23:0] DV S/DHS DDE/DCL K Deinterlacer
X'tal_I
25 MHz X'tal
R/G/B
Triple ADC SoG Processor EL7301 Core
PD[47:0] PHS/PVS/PDE
PLL
H-sync/V-sync AD[7:0] Controls CS
PLL Host I/F
PCLK0 PCLK1
TFT Panel
MPU
OSD
R/G/B
Optional External OSD
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EL7301
Features & Applications
Analog RGB input:
Integrated three channel 8-bit resolution ADCs and pre-amplifiers for analog-RGB up to SXGA 1280 *1024 @ 75Hz On-chip high performance PLLs Sync on Green (SoG)
Digital RGB inputs
Additional data port support digital or video data input DVI digital input single 24-bit RGB pixel up to 135 MHz Video display through digital input port De-interlace function for video signal 5V-tolerance input pads
Auto detection / Auto adjustment
Support for H/V sync interrupt and timing measurement function for mode detection Auto-adjustment functions for frequencies, phases, positions and white-balance
Engine
Advanced scaling algorithm for excellent image quality Programmable independent horizontal/vertical expansion zooming engine for scaling up and scaling down Support for Fidelity mode without frame buffers required. Specialized adaptive filters for crisp images On-chip digital brightness, contrast and per color 10-bit gamma table adjustment Two-dimension dithering function Support for dithering function for 6-bit panels Provide 16 build-in test pattern for system burn-in testing purpose
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EL7301
OSD engine
On-chip OSD engine with a 128K-bit fully programmable bit-map memory, resolution up to 32K pixels/16-color format Support for optional external OSD
Micro-controller interface
Support for 8-bit parallel (8051 compatible)/serial host interface PWM outputs for simplified inverter brightness control
Programmable RGB output
Resolution up to 1280x1024 (SXGA). Available for SVGA , XGA & SXGA TFT-LCD panels Single/dual-pixel digital RGB output Staggered data output Pixel clocks inverse and delay adjustment Driving current programmable to simplify EMI design Spread spectrum to disturb clock period for panel's EMI solution Both support 8/6-bit resolution panels Support for single/dual-pixel/clock panel interfaces
Technology / Package
0.25u gm CMOS technology 160-pin PQFP packaging
Applications
Digital/ Analog LCD Monitors Digital/ Analog LCD Projectors LCD TVs Flat Panel Display
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EL7301
Ordering information
Part number EL7301Q-110 EL7301Q-140 EL7301Q-160 Speed 110MHz 140MHz 160MHz Package PQFP-160 PQFP-160 PQFP-160
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