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What is GS2978?

This electronic component, produced by the manufacturer "Gennum", performs the same function as "Multi-Rate Dual Slew-Rate Cable Driver".


GS2978 Datasheet PDF - Gennum

Part Number GS2978
Description Multi-Rate Dual Slew-Rate Cable Driver
Manufacturers Gennum 
Logo Gennum Logo 


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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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GS2978 equivalent
Table 1-1: Pin Descriptions
Pin Number
11,12
Name
Timing
SDO, SDO
Center Pad
Analog
Type
Output
Power
Description
Serial digital differential output.
Connect to most negative power supply plane following the
recommendations in Recommended PCB Footprint on page 12.
2. Electrical Characteristics
2.1 Absolute Maximum Ratings
Parameter
Value
Supply Voltage
-0.5V to 3.6 VDC
Input ESD Voltage
4kV
Storage Temperature Range
-50°C < Ts < 125°C
Input Voltage Range (any input)
-0.3 to (VCC +0.3)V
Operating Temperature Range
C to 70°C
Solder Reflow Temperature
260°C
NOTE: Absolute Maximum Ratings are those values beyond which damage to the device may
occur. Functional operation under these conditions or at any other condition beyond those
indicated in the AC/DC Electrical Characteristic sections is not implied.
2.2 DC Electrical Characteristics
Table 2-1: DC Electrical Characteristics
VCC = 3.3V ±5%; TA = 0°C to 70°C, unless otherwise shown
Parameter
Symbol Conditions
Supply Voltage
Power Consumption
Supply Current
Output Voltage
VCC
PD
Is
VCMOUT
TA = 25°C,
SDO/SDO enabled
TA = 25°C,
SDO/SDO disabled
TA = 25°C,
SDO/SDO enabled
TA = 25°C,
SDO/SDO disabled
Common mode
Min
3.135
Typ
3.3
168
96
51
29
VCC - VOUT
GS2978
HD-LINX® III Multi-Rate Dual Slew-Rate Cable Driver
Data Sheet
37186 - 7
March 2009
Max
3.465
180
Units
V
mW
mW
mA
mA
V
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On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for GS2978 electronic component.


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