Texas Instruments introduced two video switches for digital video interface (DVI) or high definition multimedia interface (HDMI). The devices connect two or three digital video signals coming from devices such as game consoles, digital video switch boxes, set-top boxes or DVD players to a single HDTV display. Both the TMDS351 three-port switch, and the TMDS251, two-port switch integrate four transition minimized differential signaling (TMDS) channels, one hot plug detector and a digital display control interface on each port. Each TMDS channel supports signaling rates up to 2.5 Gbps to allow 1080p resolution in 12-bit color depth, making it compatible with the HDMI 1.3a standard. Switchable termination resistors (50?) are integrated at each TMDS receiver input, eliminating the need for external terminations. Both devices share the same package and pinout allowing customers to easily and quickly develop common platforms for 3 and 2 HDMI inputs. The TMDS351 and TMDS251 switches are available now in 64-pin TQFP packages, and priced at $2.50 and $1.60 respectively, each in 1,000-piece quantities.
800-477-8924, www.ti.com 
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