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ISL54103IHZ-T7A Folha de dados(PDF) 7 Page - Intersil Corporation |
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ISL54103IHZ-T7A Folha de dados(HTML) 7 Page - Intersil Corporation |
7 / 8 page 7 All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com FN6303.2 October 14, 2011 When the bus line is released, it is pulled high by the ISL54103 active current until the voltage exceeds the VTRIPL level for a period of time. This voltage-time combination filters out noise on the signal line. Once the ISL54103 detects a valid rising edge, a 2.2mA boost current pulls the bus line high very quickly (see Figure 8). This boost current turns off when the input level reaches the VTRIPH threshold and the pull-up current returns to the active level. If both inputs are HIGH, the pull-up current drops to the standby level of 100µA. FIGURE 8. ISL54103 DDC SYSTEM BOOST PULL-UP COMPARED TO RESISTOR PULL-UP (VDD =5.5V) FIGURE 9. ISL54103 DDC SYSTEM BOOST PULL-UP COMPARED TO RESISTOR PULL-UP (VDD =2.7V) FIGURE 10. NOISE SUPPRESSION. BOOST CURRENT APPLIED WHEN INPUT SIGNAL EXCEEDS 20Vns (TYPICAL) VTRIPL With RC Pull-up With ISL54103 DDCA VTRIPH R = 15.8k C = 200pF VTRIPL With RC Pull-up With ISL54103 DDCA VTRIPH R = 15.8k C = 200pF VTRIPL Gnd t DDC1 >20Vns DDC2 VDD With DDCA Without DDCA (Typical) VTRIPH ISL54103 |
Nº de peça semelhante - ISL54103IHZ-T7A |
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Descrição semelhante - ISL54103IHZ-T7A |
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