NXP IP4776CZ38 HDMI接口解决方案

NXP公司的IP4776CZ38是全集成的HDMI接口器件,集成了电平转移,ESD和背驱保护等功能. IP4776CZ38和HDMI 1.3兼容,每路的线电容仅为0.7pF,线间隔和0.5mm匹配,提供可用于DDC时钟和数据通路的双向电平转移N沟FET, ESD保护±8 kV,主要用在TV,图像卡,STB,DVD,数字媒体适配器和游戏控制台.本文介绍了IP4776CZ38主要特性和优势, 功能方框图, HDMI发送器和接收器应用框图以及PCB布局方案框图.

Fully integrated HDMI interface with level shifter, ESD and backdrive protection

The IP4776CZ38 is designed for HDMI host-interface protection. The IP4776CZ38 includes level shifting for the DDC channels and backdrive protection for HDMI as well as high-level ESD protection diodes for the TMDS signal lines.

The level shifting function is required when the receiver operates at a supply voltage lower than the external devices to protect the I/Os against over voltages. The IP4776CZ38 contains four N-channel MOSFETs to provide this level shifting function.

Furthermore, all TMDS intra-pairs are protected by a special diode configuration offering an ultra low line capacitance of 0.7 pF only. These diodes provide protection to downstream components from ESD voltages up to ±8 kV contact according to the IEC 61000-4-2, level 4 standard.

IP4776CZ38主要特性和优势:

Pb-free and RoHS compliant, Dark Green
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