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AM79C100JC датащи(PDF) 16 Page - Advanced Micro Devices |
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AM79C100JC датащи(HTML) 16 Page - Advanced Micro Devices |
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16 / 24 page ![]() AMD 16 Am79C100 DC CHARACTERISTICS (continued) Parameter Symbol Parameter Description Test Conditions Min Max Unit Twisted Pair Interface IIRXD Input Current at RXD ± AVSS < VIN < AVDD –500 500 uA RRXD RXD ± Differential Input (Note 1) 10 K Ω Resistance VTIVB RXD+, RXD– Open Circuit IIN = 0 mA AvDD –3.0 AvDD –1.5 V Input Voltage (Bias) VTIDV Differential Mode Input AVDD = +5 V –3.1 3.1 V Voltage Range (RXD ±) VTSQ+ RXD Positive Sinusoid 300 520 mV Squelch Threshold (Peak) 5 MHz < f < 10 MHz VTSQ– RXD Negative Sinusoid –520 –300 mV Squelch Threshold (Peak) 5 MHz < f < 10 MHz VTHS+ RXD Post-Squelch Positive Sinusoid 150 293 mV Threshold (Peak) 5 MHz < f < 10 MHz VTHS– RXD Post-Squelch Negative Sinusoid –293 –150 mV Threshold (Peak) 5 MHz < f < 10 MHz VLTSQ+ RXD Positive LRT = LOW 180 312 mV Squelch Threshold (Peak) VLTSQ– RXD Negative LRT = LOW –312 –180 mV Squelch Threshold (Peak) VLTHS+ RXD Post-Squelch Positive LRT = LOW 90 175 mV Threshold (Peak) VLTHS– RXD Post-Squelch Negative LRT = LOW –175 –90 mV Threshold (Peak) VRXDTH RXD Switching Threshold (Note 1) –60 60 mV VTXH TXD ± and TXP± DVSS = 0 V DVDD –0.6 DVDD V Output HIGH Voltage (Note 2) VTXL TXD ± and TXP± DVSS = +5 V DVSS DVSS + 0.6 V Output LOW Voltage (Note 2) VTXI TXD ± and TXP± Differential –40 40 mV Output Voltage Imbalance VTXOFF TXD ± and TXP± DVDD = +5 V –40 40 mV Idle Output Voltage RTX TXD ± and TXP± Differential (Note 1) 40 Ω Driver Output Impedance IIREXT Input Current at REXT Pin REXT = 24.3 k Ω ±1% 120 µA AVDD = +5 V Power Supply Current IDD Power Supply Current PRDN/RST = HIGH 40 mA (Idle) DVDD = AVDD = +5 V Power Supply Current PRDN/RST = LOW 95 mA (Transmitting—No TP load) Power Supply Current PRDN/RST = HIGH 150 mA (Transmitting—with TP load) DVDD = AVDD = +5 V IDDPRDN Power Supply Current PRDN/RST = LOW 4 mA in Power Down Mode Notes: 1. Parameter not tested. 2. Uses switching test load. |
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