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Gennum Corporation

GS1578A Datasheet Preview

GS1578A Datasheet

HD-LINX-R II Multi-Rate Dual Slew-Rate Cable Driver

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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
RSET
SDI INPUT
DIFFERENTIAL
PAIR
SDI
OUTPUT STAGE &
CONTROL
SDO
SDO
SD/HD
Functional Block Diagram
33657 - 4 March 2006
1 of 15
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Gennum Corporation

GS1578A Datasheet Preview

GS1578A Datasheet

HD-LINX-R II Multi-Rate Dual Slew-Rate Cable Driver

No Preview Available !

Contents
GS1578A Data Sheet
Features ........................................................................................................................1
Applications ...................................................................................................................1
Description ....................................................................................................................1
1. Pin Out ......................................................................................................................3
1.1 Pin Assignment ...............................................................................................3
1.2 Pin Descriptions ..............................................................................................3
2. Electrical Characteristics ...........................................................................................4
2.1 Absolute Maximum Ratings ............................................................................4
2.2 Solder Reflow Profiles .....................................................................................4
2.3 DC Electrical Characteristics ..........................................................................5
2.4 AC Electrical Characteristics ...........................................................................6
3. Input / Output Circuits ...............................................................................................7
4. Detailed Description ..................................................................................................8
4.1 Input Interfacing ..............................................................................................8
4.2 Output Interfacing ...........................................................................................8
4.3 Output Return Loss Measurement ................................................................11
4.4 Output Amplitude (RSET) .............................................................................11
5. Application Information............................................................................................12
5.1 PCB Layout ...................................................................................................12
5.2 Typical Application Circuit .............................................................................12
6. Package & Ordering Information .............................................................................13
6.1 Package Dimensions ....................................................................................13
6.2 Recommended PCB Footprint ......................................................................14
6.3 Packaging Data .............................................................................................14
6.4 Ordering Information .....................................................................................14
7. Revision History ......................................................................................................15
33657 - 4 March 2006
2 of 15


Part Number GS1578A
Description HD-LINX-R II Multi-Rate Dual Slew-Rate Cable Driver
Maker Gennum Corporation
Total Page 15 Pages
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