TMDS250PAGR

The TMDS250PAGR from Texas Instruments is a 2-port digital video interface (DVI) or high-definition multimedia interface (HDMI) switch. This component allows up to two DVI or HDMI inputs to be switched to a single display terminal. It supports four TMDS channels, one hot plug detector, and a digital display control (DDC) interface on each port.

This video switch is capable of signaling rates up to 2.5 Gbps, enabling resolutions such as 1080p with a 12-bit color depth. Key electrical features include integrated switchable receiver termination and selectable receiver equalization to accommodate varying input cable lengths. It operates with a 3.3-V supply for TMDS I/Os and a 5-V supply for HPD, DDC, and source selection circuits.

The TMDS250PAGR is housed in a 64-pin TQFP package with dimensions of 10x10 mm, suitable for surface mount applications. It meets HDMI 1.3a standards and offers protection against HBM ESD, exceeding 8 kV to TMDS inputs. The device is also ROHS compatible and rated for 260°C reflow.

Applications for this device include digital TVs and digital projectors, where seamless switching between multiple video sources is required. Its design considerations include managing intra-pair skew below 40 ps and inter-pair skew below 65 ps.