GS1578A Datasheet, PDF (1/15 Pages) Gennum Corporation – GS1578A HD-LINX-R II Multi-Rate Dual Slew-Rate Cable Driver

GS1578A HD-LINX® II
Multi-Rate Dual Slew-Rate Cable Driver
GS1578A Data Sheet
Features
• 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® II family
products
• Single 3.3V power supply operation
• Operating temperature range: 0°C to 70°C
Applications
• SMPTE 292M, SMPTE 344M and SMPTE 259M
Coaxial Cable Serial Digital Interfaces.
Description
The GS1578A is a second generation high-speed
BiCMOS integrated circuit designed to drive one or two
75Ω co-axial cables.
The GS1578A may drive data rates up to 1.485Gb/s
and provides two selectable slew rates in order to
achieve compliance to SMPTE 259M, SMPTE 344M
and SMPTE 292M.
The GS1578A 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 GS1578A 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
R_SET
SDI
INPUT
DIFFERENTIAL
PAIR
SDI
OUTPUT STAGE &
CONTROL
SDO
SDO
SD/HD
Functional Block Diagram
33657 - 4 March 2006
1 of 15
www.gennum.com