this is information on a product in full production. september 2015 docid025842 rev 3 1/28 HDMI2C1-14HDS esd protection and signal conditioning for hdmi? 2.0 and hdmi? 1.4 source datasheet ? production data features ? hdmi compliant from -40 to 85 c ? 8 kv contact esd protection on connector side ? supports direct connection to low-voltage hdmi asic and/or cec driver (down to 1.8 v) ? tmds high bandwidth esd protection compatible with 4 k-2 k 60 fps. ? ddc (i2c) link protection, bi-directional signal conditioning circuit, and dynamic pull-up ? cec bus protection, bi-directional level-shifter, backdrive protection, and independent structure from main power supply ? heac link protection ? hpd pull down and signal conditioning ? short-circuit protection on 5 v output ? over temperature protection ? proposed in qfn 24 leads 500 m pitch benefits ? speed-up hardware design and certification of hdmi application ? pin map sequence compliant with hdmi connector type a ? minimal pcb footprint in consumer area ? ultra low power consumption in stand-by mode ? wake-up from stand-by through cec bus ? improved hdmi interface ruggedness and user experience ? long and/or poor quality cable support complies with the following standards ? hdmi standard ? iec 61000-4-2 level 4 ? jesd22-a114d level 2 applications ? consumer and computer electronics hdmi sink device such as: ? hd set-top boxes ? dvd and blu-ray disk systems ? notebook ? pc graphic cards hdmi ? : the hdmi logo and high definition multimedia interface are trademarks or registered trademarks of hdmi licensing llc. description the HDMI2C1-14HDS is a fully integrated esd protection and signal conditioning device for control links of hdmi transmitters (source). the HDMI2C1-14HDS is a simple solution that provides hdmi designers with an easy and fast way to reach full compliancy with the stringent hdmi cts on a wide temperature range. exposed thermal die 789101112 1 2 3 4 5 6 18 17 16 15 14 13 24 23 22 21 20 19 www.st.com
HDMI2C1-14HDS 2/28 docid025842 rev 3 contents 1 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 cec line description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 ddc bus description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.3 heac link and hpd line description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3.1 hpd line description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3.2 heac link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.4 +5v protection and fault line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.5 tmds channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 2.6 application block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 3 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.1 qfn package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.2 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 5 recommendation on pcb assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.1 stencil opening design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.2 solder paste . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 5.3 placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 5.4 pcb design preference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 5.5 reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 6 ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 7 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
docid025842 rev 3 3/28 HDMI2C1-14HDS functional description 28 1 functional description the HDMI2C1-14HDS is a fully integrated esd protection and signal conditioning device for control links and tmds data video channels of hdmi transmitters (source). the control stage provides a bidirectional buffer, integrating signal conditioning and dynamic pull-up on ddc bus for maximum system robustness and signal integrity. the heac (hdmi ethernet and audio return channels) function is supported, making the component fully compliant with hdmi version. a bidirectional cec block is integrated, able to wake-up the application from stand-by mode (all power supply off, except the cec power supply). the integrated tmds links esd protection allows a video data rate up to 10.2 gbps, corresponding to the maximal speed specified by the hdmi standard. all video format specified by hdmi standard (up to 1080p60) are supported, giving maximal flexibility to designers. the +5 v supplied to the cable is protected against accidental surge current and short circuit. all these features are provided in a single 24 leads qfn package saving space on the board. the HDMI2C1-14HDS is a simple solution that provides hdmi designers with an easy and fast way to reach full compliancy with the stringent hdmi cts on a wide temperature range. figure 1. pin out, top view * 1 ' + 3 ' b , & 6 ' $ b , & & |