78Q2120C09-64CGT/F

Description：IC TRANSCEIVER FULL 4/4 64LQFP
Mfr：Analog Devices Inc./Maxim Integrated

SKU:dff604600b76 Category: Drivers, Receivers, Transceivers Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

Product Detailed Parameters

Description：IC TRANSCEIVER FULL 4/4 64LQFP
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tray
Series：-
Type：Transceiver
Protocol：MII
Number of Drivers/Receivers：4月4日
Duplex：Full
Data Rate：-
Voltage - Supply：3V ~ 3.6V
Operating Temperature：0°C ~ 70°C
Mounting Type：Surface Mount
Package / Case：64-LQFP
Supplier Device Package：64-LQFP (10x10)
Receiver Hysteresis：-
Grade：-
Qualification：-

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78Q2120C09-64CGT/F

Overview

The 78Q2120C is a Fast Ethernet transceiver compliant with IEEE 802.3 standards for 10BASE-T and 100BASE-TX operations. It integrates MII, ENDECs, scrambler/descrambler, dual-speed clock recovery, and auto-negotiation functions. The device features an on-chip pulse-shaper, low-power line driver, adaptive equalizer, and baseline restoration circuit. It interfaces with Category-5 UTP cabling for 100BASE-TX/10BASE-T and Category-3 UTP for 10BASE-T. Powered by a single 3.3 V ± 0.3V supply, it supports full-duplex operation, PCS bypass, and register-programmable transmit amplitude.

Feature Summary

Integrated MII, ENDEC, scrambler/descrambler, and auto-negotiation functionality
Adaptive equalizer and baseline restoration for accurate clock and data recovery
Automatic polarity correction during signal reception
Supports power-saving and transmitter disable modes

Applications

10BASE-T network connections using Category-3 cabling
100BASE-TX network connections using Category-5 cabling
Fast Ethernet interface modules requiring integrated PHY functions

Part Context

This component belongs to the 78Q2120 series manufactured by Teridian Semiconductor Corporation, now part of Analog Devices Inc./Maxim Integrated. It serves as a complete physical layer solution for Ethernet applications, combining transmission and reception capabilities in a single package to simplify board design and reduce component count.

Replacement Considerations

Verify pinout compatibility and electrical specifications against current inventory parts. Ensure the substitute supports both 10BASE-T and 100BASE-TX speeds with identical voltage requirements.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.