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Cable Driver. GS2988 Datasheet

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Cable Driver. GS2988 Datasheet






GS2988 Driver. Datasheet pdf. Equivalent




GS2988 Driver. Datasheet pdf. Equivalent





Part

GS2988

Description

Dual-Slew-Rate / Cable Driver



Feature


GS2988 Dual-Slew-Rate, Cable Driver with 3Gb/s Capability Features • • • • SMPTE 424M, SMPTE 292M and SMPTE 25 9M compliant Supports DVB-ASI at 270Mb/ s Supports data rates from 270Mb/s to 2 .97Gb/s Wide common-mode range input bu ffer Š 100mV sensitivity Š supports D C-coupling to industry-standard Descri ption The GS2988 is a high-speed BiCMOS integrated circuit designed.
Manufacture

Gennum

Datasheet
Download GS2988 Datasheet


Gennum GS2988

GS2988; to drive one to two 75Ω coaxial cables . The GS2988 may drive data rates up to 2.97Gb/s and provides two selectable s lew rates in order to achieve complianc e to SMPTE 424M, SMPTE 292M and SMPTE 2 59M. The GS2988 accepts industry-standa rd differential input levels including LVPECL and CML. Input trace equalizatio n compensates for up to 10 inches of FR 4 trace loss while .


Gennum GS2988

in HD and 3G modes. This feature can be disabled using the EQ_EN pin. The DISAB LE pin powers-down the entire device. T he GS2988 features adjustable output sw ing using an external bias resistor. Th e single-ended output swing is adjustab le from 500mVpp to 1800mVpp. An output signal presence function, the OSP pin, indicates whether an active signal is p resent at the outp.


Gennum GS2988

ut of the GS2988. The GS2988 can be powe red from either a 3.3V or a 2.5V supply . Power consumption is typically 110mW using a 2.5V power supply. The GS2988 i s Pb-free, and the encapsulation compou nd does not contain halogenated flame r etardant. This component and all homoge neous subcomponents are RoHS compliant. differential logic Š on-chip 100Ω d ifferential data inp.

Part

GS2988

Description

Dual-Slew-Rate / Cable Driver



Feature


GS2988 Dual-Slew-Rate, Cable Driver with 3Gb/s Capability Features • • • • SMPTE 424M, SMPTE 292M and SMPTE 25 9M compliant Supports DVB-ASI at 270Mb/ s Supports data rates from 270Mb/s to 2 .97Gb/s Wide common-mode range input bu ffer Š 100mV sensitivity Š supports D C-coupling to industry-standard Descri ption The GS2988 is a high-speed BiCMOS integrated circuit designed.
Manufacture

Gennum

Datasheet
Download GS2988 Datasheet




 GS2988
GS2988 Dual-Slew-Rate, Cable Driver with 3Gb/s Capability
Features
• SMPTE 424M, SMPTE 292M and SMPTE 259M
compliant
• Supports DVB-ASI at 270Mb/s
• Supports data rates from 270Mb/s to 2.97Gb/s
• Wide common-mode range input buffer
Š 100mV sensitivity
Š supports DC-coupling to industry-standard
differential logic
Š on-chip 100Ω differential data input termination
• Input signal trace equalization
• Differential coaxial-cable-driving output
Š selectable slew rates
Š adjustable output swing from 500mVpp to
1800mVpp
Š DISABLE control
• Robust output signal presence function
• Excellent output eye quality
• Power supply operation at 3.3V or 2.5V
• 110mW power consumption (2.5V supply)
• Operating temperature range: -40°C to +85°C
• Small footprint QFN package (4mm x 4mm)
Š Drop-in compatible to the GS2978
• Pb-free and RoHS compliant
Applications
• SMPTE 424M, SMPTE 292M and SMPTE 259M coaxial
cable serial digital interfaces
Description
The GS2988 is a high-speed BiCMOS integrated circuit
designed to drive one to two 75Ω coaxial cables.
The GS2988 may drive data rates up to 2.97Gb/s and
provides two selectable slew rates in order to achieve
compliance to SMPTE 424M, SMPTE 292M and SMPTE
259M.
The GS2988 accepts industry-standard differential input
levels including LVPECL and CML.
Input trace equalization compensates for up to 10 inches of
FR4 trace loss while in HD and 3G modes. This feature can
be disabled using the EQ_EN pin.
The DISABLE pin powers-down the entire device.
The GS2988 features adjustable output swing using an
external bias resistor. The single-ended output swing is
adjustable from 500mVpp to 1800mVpp.
An output signal presence function, the OSP pin, indicates
whether an active signal is present at the output of the
GS2988.
The GS2988 can be powered from either a 3.3V or a 2.5V
supply. Power consumption is typically 110mW using a
2.5V power supply.
The GS2988 is Pb-free, and the encapsulation compound
does not contain halogenated flame retardant.
This component and all homogeneous subcomponents are
RoHS compliant.
GS2988 Dual-Slew-Rate, Cable Driver with 3Gb/s
Capability
Data Sheet
52131 - 4
December 2010
www.gennum.com
1 of 17
Free Datasheet http://www.datasheet4u.net/




 GS2988
EQ_EN
SD/HD
DISABLE
DDI
DDI
Revision History
Version
4
3
2
1
0
ECR
155552
155359
155070
153602
153455
B 152690
A 151623
Equalizer
Slew Rate
Control
Band Gap Reference
&
Output Control
RSET
Functional Block Diagram
Output
Signal
Presence
SDO
SDO
OSP
PCN
Date
Changes and/or Modifications
December 2010 Corrected the Marking Diagram.
November 2010 Clarified the functionality of the EQ_EN pin in Table
1-1: Pin Descriptions and throughout the document.
October 2010 Updated Typical Application Circuit.
February 2010 Converted document to Data Sheet.
January 2010
Converted document to Preliminary Data Sheet.
Changed Additive jitter numbers in Table 2-2: AC
Electrical Characteristics.
October 2009
Updates to Section 2. Electrical Characteristics.
Corrections to Section 3. Input/Output Circuits.
April 2009
New document.
GS2988 Dual-Slew-Rate, Cable Driver with 3Gb/s
Capability
Data Sheet
52131 - 4
December 2010
2 of 17
Free Datasheet http://www.datasheet4u.net/




 GS2988
Contents
Features ................................................................................................................................................................. 1
Applications.........................................................................................................................................................1
Description ........................................................................................................................................................... 1
Revision History .................................................................................................................................................2
1. Pin Out...............................................................................................................................................................4
1.1 Pin Assignment ..................................................................................................................................4
1.2 Pin Descriptions ................................................................................................................................4
2. Electrical Characteristics ............................................................................................................................5
2.1 Absolute Maximum Ratings ..........................................................................................................5
2.2 DC Electrical Characteristics ........................................................................................................6
2.3 AC Electrical Characteristics ........................................................................................................7
3. Input/Output Circuits ..................................................................................................................................8
4. Detailed Description.....................................................................................................................................9
4.1 Serial Data Input ...............................................................................................................................9
4.2 Input Trace-equalization ................................................................................................................9
4.3 Serial Data Output ............................................................................................................................9
4.3.1 Slew Rate Selection (Rise/Fall Time Requirement)....................................................9
4.4 Output Disable ................................................................................................................................ 10
4.5 Output Signal Presence Indicator (OSP) ................................................................................. 10
4.6 Output Amplitude (RSET) ........................................................................................................... 10
4.7 Output Return Loss Measurement ........................................................................................... 12
5. Application Information .......................................................................................................................... 13
5.1 PCB Layout ....................................................................................................................................... 13
5.2 Typical Application Circuit ........................................................................................................ 13
6. Package & Ordering Information .......................................................................................................... 14
6.1 Package Dimensions ..................................................................................................................... 14
6.2 Recommended PCB Footprint ................................................................................................... 15
6.3 Packaging Data ............................................................................................................................... 15
6.4 Solder Reflow Profiles .................................................................................................................. 16
6.5 Marking Diagram ........................................................................................................................... 16
6.6 Ordering Information ................................................................................................................... 17
GS2988 Dual-Slew-Rate, Cable Driver with 3Gb/s
Capability
Data Sheet
52131 - 4
December 2010
3 of 17
Free Datasheet http://www.datasheet4u.net/






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