GS2975A HD-LINX® III Multi-Rate SDI Automatic Reclocker with Dual
Differential Outputs
Features
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SMPTE 424M, 292M, and 259M-C compliant
Supports data rates of 270, 1483.5, 1485, 2967,
2970Mb/s
Supports DVB-ASI at 270Mb/s
Pb-free and RoHS Compliant
Auto and Manual Modes for rate selection
Standards indication in Auto Mode
4:1 input multiplexer patented technology
Choice of dual reclocked data outputs or one data
output and one recovered clock output
Footprint and drop-in compatible with existing
GS2975 designs
Loss of Signal (LOS) Output
Lock Detect Output
On-chip Input and Output Termination
Differential 50Ω inputs and outputs
Mute, Bypass and Autobypass functions
SD/HD indication output to control GS2978 Dual
Slew-Rate Cable Driver
Single 3.3V power supply
Operating temperature range: 0°C to 70°C
Description
The GS2975A is a Multi-Rate Serial Digital Reclocker
designed to automatically recover the embedded clock
from a digital video signal and re-time the incoming video
data.
The GS2975A Serial Digital Reclocker will recover the
embedded clock signal and re-time the data from a SMPTE
424M, SMPTE 292M, or SMPTE 259M-C compliant digital
video signal.
The GS2975A removes the high frequency jitter
components from the bit-serial stream. Input termination is
on-chip for seamless matching to 50Ω transmission lines.
The GS2975A can operate in either auto or manual rate
selection mode. In Auto mode the device will automatically
detect and lock onto incoming SMPTE SDI data signals at
any supported rate. For single rate data systems, the
GS2975A can be configured to operate in Manual mode. In
both modes, the device requires only one external crystal to
set the VCO frequency when not locked and provides
adjustment free operation.
In systems which require passing of non-SMPTE data rates,
the GS2975A can be configured to either automatically or
manually enter a bypass mode in order to pass the signal
without reclocking.
The GS2975A offers a choice of dual reclocked data outputs
or one data output and one recovered clock output. The
device is footprint and drop-in compatible with existing
GS2975 designs, with no additional application changes
required.
The GS2975A is Pb-free, and the encapsulation compound
does not contain halogenated flame retardant.
This component and all homogeneous sub-components are
RoHS compliant.
Applications
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SMPTE 424M, SMPTE 292M and SMPTE 259M-C Serial
Digital Interfaces
GS2975A HD-LINX® III Multi-Rate SDI Automatic
Reclocker with Dual Differential Outputs
Data Sheet
41487 - 4
April 2009
1 of 27
GENNUM [ GENNUM CORPORATION ]
