cy7b8392 Cypress Semiconductor Corporation., cy7b8392 Datasheet
cy7b8392
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cy7b8392 Summary of contents
Page 1
... Cypress Semiconductor Corporation Ethernet Coax Transceiver Interface Functional Description The CY7B8392 is a low power coaxial transceiver for Ethernet 10BASE5 and 10BASE2 applications. The device contains all the circuits required to perform transmit, receive, collision de- tection, heartbeat generation, jabber timer and attachment unit interface (AUI) functions ...
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... When the measured signal CD level is more negative than collision condition is de- CD clared by the CY7B8392 by sending a 10-MHz signal over the CD+/CD– pair. Description AUI Collision Output pins. Differential driver that transmit a 10-MHz signal during collision events, jabber and CD Heartbeat conditions. Also referred port. ...
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... Once the transmitter is in the jabber state, it must remain in the idle state for 500 ms before it will exit the jabber state. AUI Function The CY7B8392 Auto AUI function will isolate the AUI CI port when coaxial cable is not present. The CY7B8392 monitors the average DC level at the RXI input and determines if a prop- ...
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... To measure shunt resistance, the pin (RXI or TXO) is terminated to 0 volts and the current is measured, then the pin is forced to –2 volts and the current is measured. The resistance is found by ------- - = ------------------------------------- - – – [7] Description [8] pin) XO [9] (DI and CI ports) [10] [11] [11] Test Conditions Guaranteed by Design 4 CY7B8392 Min. Typ. Max. Unit –8.55 –9.0 –9.45 V –25 –35 mA –70 –80 mA – -4.2 V -4.8 ...
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... CD Heartbeat Duration HW t Jabber Activation Delay JA t Jabber Reset Time Out JR Notes: 12. For a minimum pulse amplitude of >300 mV. RECEIVER (RX ) COLLISION OUTPUT (CD ) Description Min. 40mV) [12] ( 130 300 5 CY7B8392 510 510 V EE (b) 8392–5 Typ. Max. Unit 2.5 5 bits t +1 bits RON 25 ...
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... Jabber Timing TX+ TX– TXO CD+ CD– 50 RON 90% 50 90% 50% 10 HON HW V (min 1 CY7B8392 t RR 8392–6 t TOFF 8392–7 8392–8 –1.2V –6.8V t COFF 8392–9 8392–10 ...
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... Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. Package Type 28-Lead Plastic Leaded Chip Carrier 16-Lead (300-Mil) Molded DIP 28-Lead Plastic Leaded Chip Carrier J64 16-Lead (300-Mil) Molded DIP P1 CY7B8392 Operating Range Commercial ...