Ksz80 Ob S4lv02 Datasheet Fix -

Section B — Electrical characteristics & power (20 points) 4. (8 pts) A datasheet specifies VDD = 3.3 V ±5% and an absolute max of 3.6 V. Explain the difference between recommended operating range and absolute maximum ratings, and describe the risks of operating at the absolute max. 5. (6 pts) Given the device draws 250 mA from 3.3 V at full load, compute power dissipation. If the thermal resistance junction-to-ambient (RθJA) = 45 °C/W and ambient temperature is 50 °C, estimate junction temperature. State whether this is within typical maximum junction rating of 125 °C. 6. (6 pts) The datasheet lists IO voltage tolerant inputs up to 5 V and specifies input clamp current of ±20 mA when input exceeds VDD. Explain proper input protection design to prevent latch-up or damage when interfacing a 5 V signal to the device.

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Section F — Application design and troubleshooting (10 points) 15. (5 pts) Given intermittent link loss at gigabit only, list five plausible hardware causes related to board design or component choices, and the diagnostic step to confirm each. 16. (5 pts) A recommended application schematic shows magnetics, termination resistors, and 0.1 μF decoupling caps near VDD pins. Explain placement and value rationale for decoupling and magnetics relative to the PHY. ksz80 ob s4lv02 datasheet

: For high-volume consumer electronics. Family Comparison Feature Primary Use Legacy general-purpose PHY Standard modern 10/100 PHY Energy Efficient (EEE) version Regulator Built-in 1.8V for core Built-in 1.2V for core Built-in 1.2V for core Standout Features Fiber support (FTL model) Smallest 24-pin package option Wake-on-LAN (WoL) support Section B — Electrical characteristics & power (20

series (specifically parts like ) is a family of single-supply 10Base-T/100Base-TX Ethernet Physical Layer (PHY) transceivers by Microchip (formerly Micrel). Microchip Technology The marking State whether this is within typical maximum junction