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CY7B8392

Cypress
Part Number CY7B8392
Manufacturer Cypress
Description Ethernet Coax Transceiver Interface
Published Jan 26, 2014
Detailed Description CY7B8392 Ethernet Coax Transceiver Interface 1CY7B8392 Functional Description The CY7B8392 is a low power coaxial tran...
Datasheet PDF File CY7B8392 PDF File

CY7B8392
CY7B8392

Overview
CY7B8392 Ethernet Coax Transceiver Interface 1CY7B8392 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 detection, heartbeat generation, jabber timer and attachment unit interface (AUI) functions.
In addition, the CY7B8392 features an advanced hybrid collision detection.
The transmitter output is connected directly to a double terminated 50Ω cable.
The CY7B8392 is fabricated with an advanced low power BiCMOS process.
Typical standby current during idle is 25 mA.
Features • • • • • Compliant with IEEE802.
3 10BASE5 and 10BASE2 Pin compatible with the popular 8392 Internal squelch circuit to eliminate input noise Hybrid mode collision detect for extended distance Automatic AUI port isolation when coaxial connector is not present • Low power BiCMOS design • 16-Pin DIP or 28-Pin PLCC Logic Block Diagram RX+ HIGH PASS EQUALIZATION CCM AUI DRIVER RX– RXI LOW PASS FILTER – LOW PASS FILTER + CARRIER SENSE AUI DRIVER CD– CD+ GND TX+ TX– – CDS RCV TXO LOW PASS FILTER + COLLISION WAVEFORM SHAPING + – DC/AC SQUELCH VEE RR+ 1K RR– REFERENCE CIRCUIT 10 MHz CLK OSC WATCH DOG TIMER 26 ms JABBER RESET TIMER 0.
4 sec TRANSMIT STATE MACHINE RECEIVE STATE MACHINE HBE 8392–1 Pin Configurations DIP Top View CD+ CD– RX+ VEE VEE RX– TX+ TX– 1 2 3 4 5 6 7 8 7B8392 16 15 14 13 12 11 10 9 CDS TXO RXI VEE RR– RR+ GND HBE VEE (NC) VEE (NC) VEE VEE VEE (NC) VEE (NC) VEE (NC) PLCC Top View RX+ CD– CD+ CDS TXO NC RXI 4 3 2 1 28 2726 5 6 7 7B8392 8 9 10 11 1213 14 15 16 1718 RX– TX+ 25 24 23 22 21 20 VEE (NC) VEE VEE (NC) VEE (NC) VEE VEE (NC) RR– 8392–3 TX– HBE GND GND RR+ 8392–2 Cypress Semiconductor Corporation Document #: 38-02016 Rev.
** • 3901 North First Street • San Jose • CA 95134 • 408-943-2600 Revised January 1996 Free Datasheet http://www.
datasheet4u.
com/ CY7B8392 Pin Description Pin Number 16-Pin DIP 1 2 ...


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