EQCO30R5.D Datasheet, PDF (4/24 Pages) Microchip Technology – EQCO30R5.D 3G/HD-SDI Video Cable Equalizer

EQCO30R5.D
1.0 DEVICE OVERVIEW
The EQCO30R5 is a multi-rate adaptive cable
equalizer, designed to restore signals received over
coaxial cable. The EQCO30R5 chip is optimized for
SMPTE HD/SDI signals, but works equally well with
8B/10B coded signals. The device operates from a
single 3.3V power supply. A sister device operates from
a single 1.2V power supply, which reduces power
consumption at the cost of voltage compatibility with
competitive parts. For more information on the 1.2V
part, please contact Microchip.
The EQCO30T5 is a cable driver that matches to the
EQCO30R5, since it can receive the uplink signal.
Implementing the uplink requires very few additional
components on both sides of the link and complies with
SMPTE specifications. The EQCO30T5 data sheet is
available separately from Microchip.
The EQCO30R5 has a DC restore circuit to recover
SMPTE pathological patterns in the data stream. The
EQCO30R5 has a variable gain to compensate for low-
frequency attenuation through the coax and variations
in transmit amplitude.
Figure 1-1 shows a typical communication link using
the EQCO30T5 and EQCO30R5 chips
FIGURE 1-1:
TYPICAL EQCO30R5 SETUP
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Note: Email address: [e-mail]
High
Definition
Camera
Up to
2.97 Gbps
downlink
Up to
900 mA DC
EQCO
30T5
Up to
5 Mbps
uplink
Up to 400 meters
75ɏCoax
Up to
900 mA DC
Up to
2.97 Gbps
downlink
EQCO
30R5
Frame
Store +
Camera
Control
Up to
5 Mbps
uplink
DS60001304B-page 4
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