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GS2978 fiches techniques PDF

Gennum - Multi-Rate Dual Slew-Rate Cable Driver

Numéro de référence GS2978
Description Multi-Rate Dual Slew-Rate Cable Driver
Fabricant Gennum 
Logo Gennum 





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GS2978 fiche technique
GS2978 HD-LINX® III Multi-Rate Dual Slew-Rate Cable Driver
Features
• SMPTE 424M, SMPTE 292M, SMPTE 344M and SMPTE
259M compliant
• Dual coaxial cable driving outputs with selectable
slew rate
• 50Ω differential PECL input
• Pb-free and RoHS compliant
• Seamless interface to other HD-LINX® III family
products
• Single 3.3V power supply operation
• Operating temperature range: 0°C to 70°C
Applications
• SMPTE 424M, SMPTE 292M, SMPTE 344M and SMPTE
259M Coaxial Cable Serial Digital Interfaces.
Description
The GS2978 is a high-speed BiCMOS integrated circuit
designed to drive one or two 75Ω co-axial cables.
The GS2978 may drive data rates up to 2.97Gb/s and
provides two selectable slew rates in order to achieve
compliance to SMPTE 424M, SMPTE 259M, SMPTE 344M
and SMPTE 292M.
The GS2978 accepts a LVPECL level differential input that
may be AC coupled. External biasing resistors at the inputs
are not required.
Power consumption is typically 168mW using a 3.3V
power supply. The GS2978 is Pb-free, and the
encapsulation compound does not contain halogenated
flame retardant.
This component and all homogeneous subcomponents are
RoHS compliant.
BANDGAP REFERENCE AND BIASING CIRCUIT
RSET
DDI INPUT
DIFFERENTIAL
PAIR
DDI
OUTPUT STAGE &
CONTROL
SDO
SDO
SD/HD
DISABLE
Functional Block Diagram
GS2978
HD-LINX® III Multi-Rate Dual Slew-Rate Cable Driver
Data Sheet
37186 - 7
March 2009
www.gennum.com
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