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MTD492 Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers |
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MTD492 Datasheet(HTML) 6 Page - List of Unclassifed Manufacturers |
6 / 8 page MYSON TECHNOLOGY MTD492 MTD492 Revision 3.5 01/07/1997 6/8 5.0 ELECTRICAL CHARACTERISTICS (under operating conditions) (Note 1) OPERATING CONDITIONS DC Supply Voltage (VEE) 8.55-9.45V Operating Temperature 0o to 70oC Parameter Symbol Min Typ Max Unit Recommended Supply Voltage VEE -8.55 -9.0 -9.45 V Supply Current (all VEE pins) Non-transmission IEEidle - -25 -35 mA Transmission IEExmt - -70 -80 mA Receiver Input Bias Current (RXI) Irxi -2 - +25 µA Transmission Output DC Current (TXO) Itdc 37 41 45 mA Transmission Output AC Current (TXO) Itac +28 - Itdc mA Collision Threshold (Reception Mode) Vcd -1.45 -1.53 -1.62 V Carrier Sense Threshold (RXI) Vcs -0.38 -0.45 -0.52 V Differential Output Voltage (RX+,CD+) Vod +500 - +1500 mV DC Common Mode Output Voltage (RX+) Vocrx -1.0 -2.0 -3.0 V DC Common Mode Output Voltage (CD+) (Note 2) Voccd VEE VEE VEE V Idle State Differential Offset Voltage(RX+,CD+) Vob - 0 +40 mV Transmission Squelch Threshold(TX+) (Note 3) Vts -175 -225 -300 mV Input Capacitance (RXI) Cx - 1.5 - pF Shunt Resistance - Non-transmission Rrxi 100 - - k Ω Shunt Resistance - Transmission Rtxo 10 - - k Ω Notes: 1. Testing is done under the testing load defined in Figure 6. 2. During an idle condition, Voc is pulled down to VEE to minimize the power dissipation across the load resistors connected to CD+pins. 3. Tested under continuous 5MHz waveform that represents the preamble. 6.0 SWITCHING CHARACTERISTICS (under operating conditions) (Note 1) Parameter Symbol Min Typ Max Unit Reception Start-up Delay (RXI to RX+) Tron - 2.5 5 bits Reception Propagation Delay (RXI to RX+) Trd - 35 50 ns Differential Output Rise Time (RX+,CD+) Trr - 4 7 ns Differential Output Fall Time (RX+,CD+) Trf - 4 7 ns Receiver and Cable Total Jitter Trj - +2 -ns Transmission Start-up Delay Ttst - 1 2 bits Transmission Propagation Delay Ttd - 25 50 ns Transmission Rise Time (10%-90%) (TXO) Ttr 20 25 30 ns Transmission Fall Time (10%-90%) (TXO) Ttf 20 25 30 ns Ttr and Trf Mismatch Ttm - +0.5 +3.0 ns Transmission Skew(TXO) Tts - +0.5 +2 ns Transmission Turn-on Pulse Width at Vts(TX+) (Note 4) Tton 10 20 40 ns Transmission Turn-off Delay Ttoff 130 200 260 ns Transmission IDL Detection Time (Note 5) Ttidl 130 170 200 ns Collision Turn-on Delay Tcon - 7 13 bits Collision Turn-off Delay Tcoff - - 20 bits |
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