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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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ML4664IQ Datenblatt(PDF) 4 Page - Micro Linear Corporation |
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ML4664IQ Datenblatt(HTML) 4 Page - Micro Linear Corporation |
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4 / 16 page  4 ML4664/ML4669 PIN NAME FUNCTION 22(21) VREF A 2.5V reference with respect to GND 23(22) VTHADJ This input pin sets the link monitor threshold 24(23) AGND Analog Filtered Ground 25(24) OPINN This input pin should be capacitively coupled to filtered AVCC. The input resistance is approximately 1.3k W. 26(25) OPINP This input pin should be capacitively coupled to the input source. The input resistance is approximately 1.3k W. 27(26) AVCC Analog Filtered 5V 28(28) OPLED Indicates reception is taking place on the OPINP, OPINN pair. Active low LED driver, open collector. It is extended 16ms for usability. This pin may be grounded to disable the twisted pair outputs. If this pin is not used as an LED driver, and is not grounded, a 2k W, 5% resistor should be connected between this pin and VCC. PIN NAME FUNCTION 17(15) LMON Link Monitor “Low Light” LED status output. Pulled low when voltage on the OPINP, OPINN inputs exceed min threshold set by VTHADJ , and there are transitions on OPINP, OPINN indicating an idle signal or active data. If the voltage on OPINP, OPINN inputs falls below the minimum threshold or transitions cease on OPINP, OPINN, LMON will go high. Active low LED driver, open collector. In the low light state, optical and twisted pair transmitters are disabled from sending data. The optical transmitter of the ML4664 does send an idle signal, and link pulses are sent at the twisted pair transmitter. For the ML4669, the twisted pair transmitter will not send link pulses, the optical transmitter may send an idle signal, depending on inputs. See Table 1. 18(16) OPVCC 5V supply for fiber optic LED driver 19(17) OPOUT Fiber optic LED driver output 21(20) VDC An external capacitor on this pin integrates an error signal which nulls the offset of the input amplifier. If the DC feedback loop is not being used, this pin should be connected to VREF. PIN DESCRIPTION (Continued) |
Ähnliche Teilenummer - ML4664IQ |
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Ähnliche Beschreibung - ML4664IQ |
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