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MTD392V Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers |
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MTD392V Datasheet(HTML) 6 Page - List of Unclassifed Manufacturers |
6 / 10 page MYSON TECHNOLOGY MTD392 FAMILY MTD392 Revision 2.01 02/25/1997 6/10 receiving operation. During transmission, the detection threshold is increased to -0.42V plus its own transmission level on the CDS pin. When TST- is connected to VEE and MOD- is connected to GND, MTDX94 uses the transmit- hybrid mode for collision detection. This mode is identical to hybrid-mode, except that during idle or receiving operation, the detection threshold is set at -1.53V. For proper operation of hybrid and transmission-hybrid mode, a 400 W resistor should be connected between the CDS pin and GND. This pin has a 50 k W internal pull-up resistor. 3.0 ABSOLUTE MAXIMUM RATINGS DC Supply Voltage (VEE) -12V Input Voltage GND+0.3 to VEE-0.3V Storage Temperature -65o to 150oC Ambient Operating Temperature 0o to 70oC ESD Protection except RXI 2000V 4.0 OPERATING CONDITIONS DC Supply Voltage (VEE) 8.55-9.45V Operating Temperature 0o to 70oC 5.0 ELECTRICAL CHARACTERISTICS (under operating conditions) (Note 1) Parameter Symbol Min Typ Max Unit Recommended Supply Voltage VEE -8.55 -9.0 -9.45 V Non-transmitting Supply Current (VEE to GND) IEE - -25 -35 mA Transmission - -70 -80 mA Receiving Input Bias Current (RXI) Irxi -2 - +25 mA Transmitting Output DC Current (TXO) Itdc 37 41 45 mA Transmitting Output AC Current (TXO) Itac ±28 - Itdc mA Collision Threshold (Receiving Mode) Vcd -1.45 -1.53 -1.62 V Collision Threshold (Hybrid Mode) (MTDX94 only) Vhcd -0.38 -0.45 -0.52 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 ±,CD±) (Note2) Voc -1.0 -2.0 -3.0 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-transmitting Rrxi 100 - - k W Shunt Resistance-Transmitting Rtxo 10 - - k W Notes:1. Testing is done under the testing load defined in Figure 6. 2. During idle condition, Voc is pulled down to VEE to minimize the power dissipation across the load resistors connected to RX ± and CD±pins. 3. For a minimum pulse width of ³40 ns. |
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