EQCO850SC.1

EQCO850SC.1 Datasheet


EqcoLogic NV

Part Datasheet
EQCO850SC.1 EQCO850SC.1 EQCO850SC.1 (pdf)
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Engineering Information

EqcoLogic NV

Open your Eyes

EQCO875SC.3/ EQC850SC.3 Single Coax Transceiver for Fast Ethernet
• 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 - 205mW from single 3.3V supply
• Integrated termination resistors for low external discrete count
• Fully supports PoE based Power distribution over the coax, on top of the data signals
• 16-pin, 0.65mm pin pitch, 4mm QFN package
• Pb-free and RoHS compliant

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 coax is not used for analogue TV signals.
• TV, STB, PVR connections including inter-room links

Typical Cable Lengths

Version

EQCO875SC.3

EQCO875SC range using

RG11

RG6 5mm
225m Table 1 Typical Device Performance
150m

DS-EQCO875SC.3 Ethernet -2v0-2011-10-25

Page 1 of 11
2014 Eqcologic NV

Engineering Information
2 Functional Description

EqcoLogic NV

Open your Eyes

Overview

The EQCO875SC.3 single coax transceiver is designed to simultaneously transmit and receive signals on a single coax cable for fast ethernet. A sister product, the EQCO850SC.3 can achieve similar performance when used in coaxial systems

The EQCO875SC.3 is ideally suited for Fast Ethernet connections over 75Ω coax cable at 125Mbps1 data rate. The EQCO875SC.3 connects seamlessly to any FX2-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 below illustrates a typical Ethernet Coaxial connection:

IEEE FX

Compliant PHY

EQCO875SC

Up to 225m
75Ω Coax
including inline connectors as reqd

EQCO875SC

IEEE FX

Compliant PHY

Figure 1 Coaxial Ethernet PMD connection Figure 2 below shows a simplified block diagram of the EQCO875SC.3 when in Fast Ethernet mode:
Ordering Information

Order Code

EQCO875SC.1 EQCO850SC.1 EQCO875SC.3 EQCO850SC.3

Application
75 ohm Coax 50 ohm Coax 75 ohm Coax 50 ohm Coax

Production

End Of Life End Of Life In Qualification In Qualification

Package Type
16 Pin, 4mm QFN 16 Pin, 4mm QFN 16 Pin, 4mm QFN 16 Pin, 4mm QFN

Operating Range

EQCO850SC.1 and EQCO850.3 consist of the same silicon and the same package. EQCO875SC.1 and EQCO875.3 consist of the same silicon and the same package.

Disclaimer:

EQCOLOCIC MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Eqcologic reserves the right to make changes without further notice to the materials described herein. Eqcologic does not assume any liability arising out of the application or use of any product or circuit described herein. Eqcologic does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Eqcologic’s product in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Eqcologic against all charges.

EqcoLogic NV c/0 ETRO/VUB Pleinlaan 2, 1050 Brussels

DS-EQCO875SC.3 Ethernet -2v0-2011-10-25

Page 11 of 11

Phone +32 2 629 1301 Email:
2014 Eqcologic NV
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Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived EQCO850SC.1 Datasheet file may be downloaded here without warranties.

Datasheet ID: EQCO850SC.1 648105