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OpenLDI Receiver Circuit for Flat-Panel Display Systems  

Han, Pyung-Su (Yonsei Univ., Electrical&Electronic Engineering)
Choi, Woo-Young (Yonsei Univ., Electrical&Electronic Engineering)
Publication Information
Abstract
An OpenLDI receiver circuit for flat-panel display systems was designed and fabricated using $1.8-{\mu}m$ high-voltage CMOS technology. Designed circuit roughly consists of DLL circuit and parallelizers, which recovers clock and parallelize data bits, respectably. It has one clock input and four data inputs. Measurement results showed that it successfully recovers clock signal from input whose frequency is $10Mhz{\sim}65Mhz$, which corresponds data rate of $70Mbps{\sim}455Mbps$ per channel, or $280Mbps{\sim}1.82Gbps$ when all of the four data channels were utilized. A commercial LCD monitor was modified into a test-bench and used for video data transmission at clock frequency of 49Mhz. In the experiment, power consumption was 19mW for core block and 82.5mW for output buffer.
Keywords
OpenLDI; Flat-panel display; LVDS; DLL; Voltage controlled delay line; Parallelizer;
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