Maxim MAX3845UCQ+

驱动器，开关视频显示器HDMI 1.3

Overview

The MAX3845UCQ is a TMDS 2-to-4 fanout switch and cable driver for multimonitor distribution of DVI or HDMI signaling up to 1.65Gbps. Both inputs and outputs are standard TMDS signaling as per DVI and HDMI standards. Because TMDS links are "point-to-point", buffering is required for fanout applications. Four DVI/HDMI TMDS outputs are provided for fanout distribution. Each TMDS output can be independently sourced from either input or can be turned off. Each TMDS input or output is composed of four differential channels that can be arbitrarily assigned to the three data signals and the 1/10th-rate clock. The data rate depends on resolution, but it can vary from 250Mbps (VGA) to 1.65Gbps (UXGA or 1080p/60). Typical applications include multiroom display of the same video source or industrial/commercial signage applications such as airport monitors or trading room floor displays. The MAX3845UCQ includes selectable output preemphasis that extends output cable reach up to an additional 7m. For DDC switching, use the companion MAX4814E 2:4 low-resistance CMOS crosspoint switch. DDC switching is not required for applications that connect DDC to one reference monitor only. The MAX3845UCQ can be configured to create a 2 x 8 or 4 x 4 switch (see the Typical Operating Circuit diagrams located in the full data sheet). The MAX3845UCQ is available in a 14mm × 14mm, 100-pin TQFP-EP package and operates over the -10°C to +85°C temperature range.

Features

Tray Package

Surface Mount Mounting Type

Applications

MAX3845UCQ+ Video Processing Linear ICs applications.

• DLP
• Notebook PCs
• Desktop PCs
• PC Docking Stations
• PC Standalone Video Cards
• Consumer, Professional, Automotive
• Industrial Video
• Video Capture, Editing, and Processing
• Genlock Circuits
• Surveillance & Security Video Systems