PCM-3524

Aaeon PCM-3524 LVDS Transmitter/Receiver Module

The LVDS Module is a interface devices specifically configured to support data transmission from graphics controller to LCD panels. The technology employed, LVDS (Low Voltage Differential Signaling), is ideal for high speed, low power data transfer. This enables the implementation of high end displays such as SVGA (800 x 600) and XGA (1024 x 768).

The predominant issues limiting performance in these high end displays are speed, power, and EMI considerations. The user is also concerned with the physical interface to the display; the fewer wires the better. The LVDS Module addresses these issues with LVDS technology and muxing TTL signals to higher speed LVDS signals which allows a substantially narrower interface between host and display. In a typical application (see figure 1), TTL-level RGB and control data from the graphic controller arrives at the inputs of the LVDS transmitter module. The parallel TTL data is muxed and converted to LVDS. The outputs of the LVDS transmitter module drive the LVDS data on the cable which connects the motherboard to the display. The LVDS data traverses the cable to the LVDS receiver module at the display.

The received data is then demuxed, converted back to TTL levels and sent to the inputs of the timing controller. This muxing of parallel TTL signals allows the data to travel at faster speeds across a narrow interface, addressing needs associated with high bandwidth communication

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