1. General Description

The LT8668EX is Lontium’s second generation LCD controller that supports both VGA interface and the HD-DVI interface based on ClearEdgeÔ Technology, compliant with the HD-DVI 1.4 specification. It can support Dual-Mode DP with HD-DVI interface. For backward compatibility, this LCD controller also includes a high performance analog interface to work with traditional VGA/YPbPr interface. With quad-LVDS ports it can support quad-LVDS ports monitor with 4Kx2K resolution. And dual-LVDS ports or single-LVDS port for other resolution. For total solution of LCD controller, LT8668EX integrates main functions including position adjustment, programmable scalar, video processor (hue, saturation, brightness and contrast adjustment), OSD, gamma correction, PWM, MCU, total 16 GPIOs and nor-flash (option). For easy implementation of a multi-media system, LT8668EX has high quality digital audio input and output interface that support 2-channel audio and SPDIF audio format. LT8668EX integrates 4M bits nor-flash inside, and also you can use external nor-flash by SPI interface for compatibility.

2. Features

• HD-DVI2.1 Receiver
• USB Type-C
• DP1.4a/eDP1.4b Receiver
• HD-DVI2.1 Transmitter
• DP1.4a/eDP1.5 Transmitter
• Four-Port LVDS Transmitter
• Four-Port MIPI® DSI/CSI Transmitter
• eDP1.4b/eDPx Transmitter
• Digital Audio Input and Output
• Video Process
• DSC Decoder and Encoder

3.  Applications

• Display System on Motherboard, Monitor

• Display System for PCs and embedded applications Display