EQCO850SC.3-HS Datasheet, PDF (1/24 Pages) Microchip Technology – Pb-Free and RoHS Compliant

EQCO850SC.3-HS
EQCO875SC.3-HS
EQCO850SC.3-HS/EQCO875SC.3-HS Single-Coax
Transceiver for LVDS and Gigabit Ethernet Applications
Features
• Combined Transmitter and Receiver with an
Integrated Equalizer to Form a Full-Duplex
Bidirectional Connection over a Single 50Ω Coax
Cable (EQCO850SC-HS) or 75Ω Coax Cable
(EQCO875SC-HS)
• Internal LVDS Termination Resistors for Low
External Discrete Count
• Allows Power Distribution Over the Coax, on top
of the Data Signals
• Single 3.3 V Supply
• 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
• Coax Cable-Distribution Infrastructure
Introduction
The EQCO850SC-HS single-coax transceiver is
designed to simultaneously transmit and receive
signals on a single 50Ω coax cable. A sister product,
the EQCO875SC-HS, can achieve similar performance
when used in 75Ω coaxial systems.
The EQCO850SC.3-HS works for 50Ω coax
applications and the EQCO875SC.3-HS works for 75Ω
coax applications. Everything is the same between both
parts except the part number, the coax resistance and
the characteristic impedance of transmission lines and
connectors between the chip and the edge of the
boards. Refer to Section 3.0 “Application
Information” for information about the typical
application circuit.
TABLE 1: TYPICAL EQUALIZATION PERFORMANCE FOR EQCO850SC.3-HS
Bit Rate
RG174 (Ø 2.8 mm)
EQCO850SC.3-HS range using
RTK (Ø 2.8 mm)
RG58 (Ø5 mm)
500 Mbps
25m
1 Gbps
15m
40m
50m
25m
30m
Note:
For other cable types, the length that can be reached in full-duplex may have maximally -12 dB insertion
loss at 625 Mhz, for a bit rate of 1.25 Gbps. Equalizer performance works up to much higher levels in half-
duplex. For lower bit-rates, slightly longer cable lengths can be achieved.
TABLE 2: TYPICAL EQUALIZATION PERFORMANCE FOR EQCO875SC.3-HS
Bit Rate
RG179
EQCO875SC.3-HS range using
RG59
RG6
1.25 Gbps
20m
40m
80m
 2010-2015 Microchip Technology Inc.
DS60001313A-page 1