Instrukcja obsługi Microchip FastECoax7501

Microchip Niesklasyfikowane FastECoax7501

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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
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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
FX
Compliant
PHY
EQCO875SC
IEEE 802.3
FX
Compliant
PHY
EQCO875SC

Specyfikacje produktu

Marka: Microchip
Kategoria: Niesklasyfikowane
Model: FastECoax7501

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