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TPD7S019-15RSVR 데이터시트(PDF) 7 Page - Texas Instruments |
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TPD7S019-15RSVR 데이터시트(HTML) 7 Page - Texas Instruments |
7 / 21 page VCC_VIDEO VSYNC VCC_DDC BYP GND VIDEO1 DDC_IN1 DDC_IN2 DDC_OUT1 DDC_OUT2 VIDEO2 VIDEO3 SYNC_IN1 SYNC_OUT1 SYNC_IN2 SYNC_OUT2 RT RT TPD7S019 www.ti.com SLLSE33C – AUGUST 2010 – REVISED NOVEMBER 2015 7 Detailed Description 7.1 Overview The TPD7S019 is an integrated protection solution for VGA or DVI-I ports by providing high-speed ESD protection, level-shifting and signal buffering. The TVS protection diodes for VIDEO signals, DDC signals and SYNC signals provide robust ESD clamping that meets the IEC61000-4-2 standard for ±8-kV contact stress. The signals run at high speed is minimally affected by the low capacitance added to each signal line. The integrated level-shifters for the DDC signals help save external ICs. Two buffers on the HSYNC and VSYNC signals convert TTL input level to CMOS output level, and it saves external components by integrating series termination resistors connected to the SYNC_OUT pin. TPD7S019 takes in three signal rails to make the signals compatible with different voltages on VIDEO, DDC and SYNC. The two package options provide the latitude to choose between either small board area or easier layout and better signal integrity. The end applications of this device include desktop and laptop PCs, set top boxes, TVs, and monitors. 7.2 Functional Block Diagram 7.3 Feature Description TPD7S019 is an integrated protection solution for VGA and DVI-I ports. It has the low capacitance ESD TVS diodes for the VIDEO signals to ensure high speed data transmission. Level-shifting on the DDC lines translate signals on the cable to the level can be processed by downstream ICs. Buffers on the SYNC lines condition the signal levels and quality. The integrated termination resistors help reduce external devices. TPD7S019 exceeds IEC61000-4-2 (Level 4) ESD standard of ±8-kV contact discharge, making the system robust against system level ESD. The two package options provide the freedom to choose between a compact package or a flow through package. Copyright © 2010–2015, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: TPD7S019 |
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