MTD492N MYSON, MTD492N Datasheet
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MTD492N
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MTD492N Summary of contents
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... CIRCUIT RR- This datasheet contains new product information. Myson Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. HIGH PASS ...
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... MYSON TECHNOLOGY 1.0 CONNECTION DIAGRAM CD RX MTD492N PDI 2.0 PIN DESCRIPTIONS Name I/O PDIP PLCC Pin# Pin# TX+,TX- I 7,8 13,14 Transmission Data Input. A balanced differential line receiver which receives inputs from the off-chip Manchester Code Converter(MCC) to the Transmitter ...
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... MYSON TECHNOLOGY RX+,RX- O 3,6 4,12 Reception Data Output. A balanced differential output drives the data recovered from the network to the MCC. These outputs are also open sources, and pull-down resistors of 510 pins are biased at -2V during idle time. When an extended period of collision condition happens, the receiving path is disabled. Any interruption of collision will re-enable the receiving path ...
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... MYSON TECHNOLOGY The RX+/- output pin is driven by a source follower. Therefore, an external pull-down load is required for these 2 pins. During idle state, RX+/- is biased at around -1.5V. MTD492 MTD492 Revision 3.5 01/07/1997 4/8 ...
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... MYSON TECHNOLOGY 3.3. Collision Detection Path In 10Base2 and 10Base5, a collision condition is determined by the DC level on the cable. The DC average is extracted by a low pass filter. The output of the filter is compared with an internally set threshold (Vcd) to determine the collision condition. The internal threshold is set for the reception-collision mode. By definition, MTD492 will detect collision conditions caused by more than 2 stations simultaneously transmitting ...
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... MYSON TECHNOLOGY 5.0 ELECTRICAL CHARACTERISTICS OPERATING CONDITIONS DC Supply Voltage (VEE) Operating Temperature Parameter Recommended Supply Voltage Supply Current (all VEE pins) Non-transmission Transmission Receiver Input Bias Current (RXI) Transmission Output DC Current (TXO) Transmission Output AC Current (TXO) Collision Threshold (Reception Mode) Carrier Sense Threshold (RXI) ...
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... MYSON TECHNOLOGY Collision Frequency (CD+) Collision Pulse Width (CD+) Extended Collision Detection Time (Note 6) CD Heartbeat Delay (TX+ to CD+) CD Heartbeat Duration(CD+) Jabber Activation Delay(TX+ to CD+) Jabber Reset Time-out (TX+ to TXO and CD+) Notes: 4. For a minimum pulse amplitude of > -300 mV. 5. IDL detection precedes the transmission turn-off by transmission propagation delay. ...
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... MYSON TECHNOLOGY TX Transmitter Output *: 50 H inductor is used for testing purposes. Pulse transformers with higher primary inductance are recommended. 8.0 PACKAGE DIMENSION ...