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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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ADV3003 Fiches technique(PDF) 11 Page - Analog Devices |
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ADV3003 Fiches technique(HTML) 11 Page - Analog Devices |
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11 / 16 page  ADV3003 Rev. 0 | Page 11 of 16 The ADV3003 has an external control pin, TX_EN. The TX_EN pin must be connected to either a logic high (1) or low (0), in accordance with the logic values set forth in Table 1. The use of the TX_EN pin is described in Table 5. When the transmitter is enabled by setting TX_EN to 1, both the input and output terminations are enabled. Setting TX_EN to 0 disables the transmitter, reducing power when the transmitter is not in use. When the transmitter is disabled, the input termi- nation resistors are also disabled to present a high impedance state at the input and indicate to any connected HDMI sources that the link through the ADV3003 is inactive. Table 5. Transmitter Enable Setting TX_EN Input Termination Transmitter State Output Termination 0 Off Off On 1 On On On The ADV3003 also includes two levels of programmable output pre-emphasis, 0 dB and 6 dB. The output pre-emphasis level can be manually configured by setting the PE_EN pin. The PE_EN pin must be connected to either a logic high (1) or low (0), in accordance with the logic values set forth in Table 1. The use of the PE_EN pin is described in Table 6. No specific cable length is suggested for use with either pre-emphasis setting, because cable performance varies widely among manufacturers. Table 6. Pre-Emphasis Enable Setting PE_EN Boost 0 0 dB 1 6 dB In a typical application, the output of the ADV3003 is connected to the input of an HDMI/DVI receiver, which provides a second set of matched terminations in accordance with the HDMI 1.3 specification. If neither receiver nor receiver termination is connected to the output of the ADV3003 in the end-application, each ADV3003 output pin should be tied to 3.3 V through a 50 Ω resistor. |
Numéro de pièce similaire - ADV3003 |
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Description similaire - ADV3003 |
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