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 2009-2016 Microchip Technology Inc. DS60001314A-page 1

EQCO875SC.3/EQCO850SC.3

Features

• Combined Transmitter and Receiver with an

Integrated Equalizer to Form a Full-Duplex

Bidirectional Connection over a Single 75Ω Coax

Cable (EQCO875SC.3) or 50Ω Coax Cable

(EQCO850SC.3)

• Compatible with FX Version of Fast Ethernet

• Low-Power: 205 mW from Single 3.3V Supply

• Integrated Termination Resistors for Low External

Discrete Count

• Fully Supports PoE-Based Power and Data

Signal Distribution Over Coax

• 16-Pin, 0.65 mm Pin Pitch, 4 mm QFN Package

• Pb-Free and RoHS Compliant

Applications

This solution is useful and economical for many

markets and applications, including the following:

• Camera Networks

- Home Security, Surveillance, Industrial/

Inspection, Medical Cameras

• Home Networking over Coax Infrastructure

- When Cat5 or Cat6 cabling is not available

and existing 75Ω coax is not used for analog

TV signals

• TV, STB, PVR Connections Including Inter-Room

Links

TABLE 1: TYPICAL DEVICE PERFORMANCE FOR EQCO875SC.3

Version

EQCO875SC.3 Range Using

RG11 RG6 (Ø 5 mm)

EQCO875SC.3 225m 150m

TABLE 2: TYPICAL DEVICE PERFORMANCE FOR EQCO850SC.3

Version

EQCO850SC.3 Range Using

RG174 RTK RG58

EQCO850SC.3 40m 70m 70m

EQCO875SC.3/EQCO850SC.3 Single-Coax Transceiver for

Fast Ethernet

EQCO875SC.3/EQCO850SC.3

DS60001314A-page 2  2009-2016 Microchip Technology Inc.

Table of Contents

1.0 Device Overview .......................................................................................................................................................................... 3

2.0 Application Information................................................................................................................................................................. 7

3.0 Electrical Characteristics .............................................................................................................................................................. 9

4.0 Packaging................................................................................................................................................................................... 11

TO OUR VALUED CUSTOMERS

It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip

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Most Current Data Sheet

To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at:

http://www.microchip.com

You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page.

The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000).

Errata

An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current

devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision

of silicon and revision of document to which it applies.

To determine if an errata sheet exists for a particular device, please check with one of the following:

• Microchip’s Worldwide Web site; http://www.microchip.com

• Your local Microchip sales office (see last page)

When contacting a sales office, please specify which device, revision of silicon and data sheet (include literature number) you are

using.

Customer Notification System

 2009-2016 Microchip Technology Inc. DS60001314A-page 3

EQCO875SC.3/EQCO850SC.3

1.0 DEVICE OVERVIEW

The EQCO875SC.3 single-coax transceiver is

designed to simultaneously transmit and receive

signals on a single 75Ω coax cable for Fast Ethernet. A

sister product, the EQCO850SC.3, can achieve similar

performance when used in 50Ω coaxial systems.

The EQCO875SC.3 is ideally suited for Fast Ethernet

connections over a 75Ω coax cable at a 125 Mbps data

rate. The EQCO875SC.3 connects seamlessly to any FX-

compliant physical layer controller (PHY). For correct

operation, the signals are expected to be 4B/5B encoded,

DC balanced and to have a bit rate of 125 Mbps.

This EQCO875SC.3 is useful and economical for

connecting remote PoE-enabled Fast Ethernet IP

cameras and other Ethernet over Coax applications.

Figure 1-1 illustrates a typical Ethernet Coaxial

connection:

FIGURE 1-1: COAXIAL ETHERNET PMD CONNECTION

Up to 225 meters

75Ω Coax

(including inline

connectors as required)

IEEE 802.3

Compliant

PHY

EQCO875SC

IEEE 802.3

Compliant

PHY

EQCO875SC

Produktspecifikationer

Varumärke:	Microchip
Kategori:	Inte kategoriserad
Modell:	FastECoax7501
Färg på produkten:	Blauw
Vikt:	10000 g
Bredd:	140 mm
Djup:	238 mm
Höjd:	255 mm
Förpackningens vikt:	11600 g
Förpackningens bredd:	312 mm
Djuppackning:	455 mm
Förpackningshöjd:	339 mm
Husmaterial:	MDF
Blåtand:	Ja
På / Av knapp:	Ja
Fjärrkontroll:	Draadloos
Bluetooth-version:	5.0
USB-kontakttyp:	USB Type-B
Anslutningsteknik:	Bedraad en draadloos
Typ av strömkälla:	AC
Medföljande kablar:	AC, AUX, TOSLINK Digital Optical, USB Type-A to USB Type-B
Antal USB 2.0-portar:	1
Genomsnittlig effekt:	100 W
Volymkontroll:	Draaiknop
Ingångsström:	Ja
Antal per paket:	2 stuk(s)
Rekommenderad användning:	Thuis
USB-anslutning:	Ja
Ljudutgångskanaler:	2.0 kanalen
Högtalarplacering:	Tafelblad/Boekenplank
Antal förare:	1
Bashögtalare:	Ja
Diameter drivrutin:	114.3 mm
Frekvensomfång:	52 - 40000 Hz
Fjärrstyrd:	Ja
Signal-brusförhållande:	90 dB
AUX ingång:	Ja
Förstärkare:	Ingebouwd
Diameter woofer:	30 mm
Antal basförare:	1
Antal diskantdrivrutiner:	1
Fjärrkontroll ingår:	Ja
Justering av basnivå:	Ja
Tweeter:	Ja
AC-ingångsspänning:	100 - 240 V
AC-ingångsfrekvens:	50 - 60 Hz
Diskantjustering:	Ja
Förstärkarklass:	D
Driver kon material:	Aluminium
Antal förstärkare:	2