GS6140 Datasheet, PDF (1/3 Pages) Semtech Corporation – Multi-Rate 6G UHD-SDI Equalizer

GS6140
Multi-Rate 6G UHD-SDI Equalizer
Key Features
• Multi-standard operation at rates between 1Mb/s and
5.94Gb/s
• SMPTE ST 2081 (proposed), SMPTE ST 292 and
SMPTE ST 259 compliant
• AES10 (MADI) compatible
• Industry leading cable reach, with automatic cable
equalization for different lengths of cable
• Performance optimized for 125Mb/s, 270Mb/s,
1.485Gb/s, 2.97Gb/s and 5.94Gb/s. Typical equalized
length of Belden 1694A cable up to:
Š 100m at 5.94Gb/s
Š 200m at 2.97Gb/s
Š 300m at 1.485Gb/s
Š 550m at 270Mb/s
• 1.8V core power supply
• 83mW when DC-coupled at +1.2V
• Ultra-low power mode for shorter cable reach
applications
• Upstream launch swing compensation from 250mV_ppd
to 1000mV_ppd in 50mV steps (Default 800mV_ppd)
• Auto/Manual bypass (useful for low data rates with
slow rise/fall times)
• Robust, noise-immune signal detection with squelch
threshold adjustment
• Auto/Manual control of SLEEP/MUTE/DISABLE
OUTPUT modes
• Data Rate detection and indication
Š <MADI, MADI, SD, HD, 3G, 6G differentiation
• Digital cable length indication (CLI)
• Differential output supports DC-coupling from
1.0V to 2.5V CML logic and AC-coupling for other logic
families
• Programmable/Rate-dependent output de-emphasis
level and delay
• Host interface for status and control
• 6kV HBM ESD protection on all pins
• Wide operating temperature range of -40ºC to +85ºC
• Small footprint QFN–COL package
(16-pin, 4mm x 4mm)
• Pb-free and RoHS compliant
Applications
• SMPTE ST 2081 (proposed), SMPTE ST 424,
SMPTE ST 292, SMPTE ST 259 and AES10 coaxial cable
serial digital interfaces
Description
The GS6140 is a high-speed BiCMOS device designed to
equalize and restore signals received over cable.
The device is designed to support SMPTE ST 2081
(proposed), SMPTE ST 424, SMPTE ST 292, SMPTE ST 259
and AES10 (MADI), and it is optimized for performance at
125Mb/s, 270Mb/s, 1.485Gb/s, 2.97Gb/s, and 5.94Gb/s.
The device supports MADI serial signals at 125Mb/s with
peak-to-peak launch amplitude between 300mV and
600mV (with AES10 spec rise and fall times) and
800mV±10% (with SD-SDI rise and fall times).
The GS6140 features DC restoration to compensate for the
DC content of SMPTE pathological signals.
Loss of Signal (LOS) is detected when the input carrier is lost
or signal amplitude falls below a programmable threshold.
This is further processed by a filter programmable up to 1.6s
before LOS status is asserted. The device can be
programmed to automatically sleep/mute/disable the
output on loss of signal.
An interrupt pin (INT) indicates LOS by default, and can be
programmed to signal various other statuses.
When the BYPASS control bit is set, the equalizing and DC
restore stages are disengaged. This is useful for signals
launched at the source with low data rates and/or slow rise
and fall times.
The differential output can be DC-coupled to Semtech’s
reclockers and cable drivers, as well as industry-standard
GS6140 Multi-Rate 6G UHD-SDI Equalizer
Product Brief
Rev. 1
GENDOC-058264 March 2014
www.semtech.com
1 of 3
Proprietary & Confidential