GS6081
Gennum Products
Features Description
Supports data rates from 270Mb/s to 5.94Gb/s The GS6081 is a high-speed BiCMOS integrated circuit
designed to drive one to four 75 coaxial cables.
SMPTE ST 424, SMPTE ST 292 and SMPTE ST 259
compliant The GS6081 may drive data rates up to 5.94Gb/s and
provides two selectable slew rates in order to achieve
Supports DVB-ASI at 270Mb/s
compliance to SMPTE ST 424, SMPTE ST 292 and
Wide common-mode range input buffer
SMPTE ST 259.
100mV sensitivity
The GS6081 accepts industry-standard differential input
supports DC-coupling to industry-standard
levels including LVPECL and CML.
differential logic
Input trace equalization compensates for up to 10 inches of
on-chip 100 differential data input termination
FR4 trace loss while in HD, 3G and UHD modes. This feature
is enabled and disabled using the EQ_EN pin.
Input signal trace equalization
The DISABLE1 and DISABLE2 pins power-down the first and
Dual differential coaxial-cable-driving outputs
second output drivers respectively, leaving the serial data
selectable slew rates
outputs in a high-impedance state. When applied
adjustable output swing from 500mV to
simultaneously, the entire device is powered-down.
pp
1040mV
pp
The GS6081 features adjustable output swing using an
external bias resistor. The single-ended output swing is
independent disable controls for each output
adjustable from 500mV to 1040mV .
pp pp
Robust signal presence function
An output signal presence function, the SP pin, indicates
Excellent output eye quality
whether an active signal is present at the output of the
Power supply operation at +3.3V or +2.5V
GS6081.
135mW power consumption (+2.5V supply)
The GS6081 can be powered from either a +3.3V or a +2.5V
Operating temperature range: -40C to +85C supply. Power consumption is typically 135mW using a
+2.5V power supply with one output enabled.
Small footprint QFN package (4mm x 4mm)
The GS6081 is Pb-free, and the encapsulation compound
new dual-output pin out
does not contain halogenated flame retardant.
use the GS6080 for a single-output variant that is
This component and all homogeneous subcomponents are
drop-in compatible to the GS2988
RoHS compliant.
Pb-free and RoHS compliant
Applications
6G UHD-SDI, SMPTE ST 424, SMPTE ST 292 and
SMPTE ST 259 coaxial cable serial digital interfaces
GS6081 1 of 19
www.semtech.com
Final Data Sheet Rev.4
PDS-060046 July 2014EQ_EN SD_EN DISABLE1
SDO1
SDO1
DDI
Output
Signal SP
Slew Rate
Equalizer Presence
Control
DDI
SDO2
SDO2
Band Gap Reference
&
Output Control
RSET DISABLE2
GS6081 Functional Block Diagram
Revision History
Version ECO PCN Date Changes and/or Modifications
4 020838 July 2014 Updated max power and current values in Table 2-2.
Corrected pin order in Table 1-1 to match proper pin
3 016276 November 2013
numbering arrangement
2 013845 July 2013 Updated from Draft Data Sheet to Final Data Sheet.
Updated Table 2-3: AC Electrical Characteristics. Changed
the product name to GS6081 (and the DOC ID to
1 012266 June 2013
PDS-060046) to reflect the production-ready status of the
device.
0 010383 December 2012 New document.
GS6081 2 of 19
www.semtech.com
Final Data Sheet Rev.4
Proprietary & Confidential
PDS-060046 July 2014