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GS6042 Folha de dados(PDF) 1 Page - Gennum Corporation

Nome de Peças GS6042
Descrição Electrónicos  Automatic cable equalization
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Fabricante Electrônico  GENNUM [Gennum Corporation]
Página de início  http://www.gennum.com
Logo GENNUM - Gennum Corporation

GS6042 Folha de dados(HTML) 1 Page - Gennum Corporation

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Proprietary and Confidential
GS6042
Final Data Sheet
Rev. 3
PDS-060055
May 2014
Gennum Products
GS6042
6G UHD-SDI/3G/HD/SD Adaptive
Cable Equalizer
www.semtech.com
Key Features
Supports data rates from 125Mb/s to 6.25Gb/s
SMPTE ST 2081 (proposed), SMPTE ST 424,
SMPTE ST 292, and SMPTE ST 259 compliant
Automatic cable equalization
Typical equalized length of Belden 1694A cable:
80m at 5.94Gb/s
210m at 2.97Gb/s
300m at 1.485Gb/s
500m at 270Mb/s
Supports DVB-ASI at 270Mb/s
Supports MADI at 125Mb/s
Manual bypass control
Programmable carrier detect with squelch threshold
adjustment
Automatic power-down on loss of signal
Differential output supports DC-coupling from +1.2V
to +3.3V CML logic
Optional 6dB flat band gain on input
Selectable output de-emphasis: 2dB, 6dB, and 8dB
Standard EIA/JEDEC logic for control/status signals
Single +3.3V power supply operation
180mW power consumption (35mW in sleep)
Operating temperature range: -40ºC to +85ºC
Small footprint QFN package (4mm x 4mm)
Footprint compatible with the GS2974A, GS2974B,
GS2984, GS2994, and GS3440
Pb-free and RoHS compliant
Applications
SMPTE ST 2081 (proposed), SMPTE ST 424,
SMPTE ST 292, and SMPTE ST 259 coaxial cable serial
digital interfaces
Serialized 8b/10b encoded video streams up to
6.25Gb/s
Description
The GS6042 is a high-speed BiCMOS device designed to
optimally equalize and restore signals received over 75
Ω
coaxial cable.
The device supports data rates up to 6.25Gb/s while being
optimized for the proposed SMPTE ST 2081, as well as
SMPTE ST 424, SMPTE ST 292, and SMPTE ST 259.
The GS6042 features DC restoration to compensate for the
DC content of SMPTE pathological signals.
The Carrier Detect output pin (CD) indicates whether an
input signal has been detected. It can be connected
directly to the SLEEP pin to enable automatic sleep on loss
of input.
A CD threshold is set via the SQ_ADJ pin, allowing the
GS6042 to distinguish between small amplitude SDI signals
and noise at the input of the device.
The equalizing and DC restore stages are disengaged and
no equalization occurs when the BYPASS pin is HIGH. This is
useful for signals launched at the signal source with low
data rates and/or slow rise/fall times.
The GS6042 features a gain selection pin (GAIN_SEL) which
can be used to compensate for 6dB flat attenuation prior to
the input of the device.
The differential output can be DC-coupled to Semtech’s
reclockers and cable drivers, as well as industry-standard
CML logic by changing the voltage applied to the
VCC_O pin. In general, DC-coupling to any termination
voltage between +1.2V and +3.3V is supported.
The GS6042 also features programmable output
de-emphasis with three user-selectable operating levels to
support long PCB traces at the output of the device.
Power consumption of the GS6042 is typically 180mW
when its output is DC-coupled at +1.2V.
The GS6042 is Pb-free, and the encapsulation compound
does not contain halogenated flame retardant. This
component and all homogeneous subcomponents are
RoHS compliant.


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