Texas Instruments' TMDS171 is a digital video interface (DVI) or high-definition multimedia interface (HDMI) retimer. The TMDS171 supports four TMDS channels, audio return channel (SPDIF_IN/ARC_OUT), hot plug detect (HPD), and digital display control (DDC) interfaces. The TMDS171 supports signaling rates up to 3.4 Gbps to allow for the highest resolutions of 4k2k30p 24-bits per pixel and up to WUXGA 12-bit color depth or 1080p with higher refresh rates. The TMDS171 automatically configures itself as a re-driver at low data rate (< 1 Gbps) or as a retimer above this data rate.

The TMDS171 supports dual power supply rails of 1.2 V on V_DD and 3.3 V on V_CC for active power reduction. Several methods of power management are implemented to reduce overall power consumption. TMDS171 supports fixed EQ gain or adaptive EQ control by I²C or pin strap to compensate for different lengths of input cable or board traces.