GS2974B Datasheet, PDF (9/17 Pages) Gennum Corporation – HD-LINX III Adaptive Cable Equalizer

50
SDO
50
SDO
Figure 3-3: Output Circuit
MUTE,
CD
BYPASS
Figure 3-4: MUTE and BYPASS Circuits
Figure 3-5: CD Circuit
4. Detailed Description
The GS2974B is a high speed BiCMOS IC designed to equalize serial digital signals.
The GS2974B can equalize 3Gb/s, HD and SD serial digital signals, and will typically
equalize 140m of Belden 1694A cable at 2.97Gb/s, 230m at 1.485Gb/s and 250m at
270Mb/s.The GS2974B is powered from a single +3.3V power supply and consumes
approximately 215mW of power.
4.1 Serial Digital Inputs
The Serial Data Signal may be connected to the input pins (SDI/SDI) in either a
differential or single ended configuration. AC coupling of the inputs is recommended, as
the SDI and SDI inputs are internally biased at approximately 1.8V.
GS2974B GS2974B HD-LINX™ III Adaptive Cable
Equalizer
Data Sheet
45062 - 3
April 2009
9 of 17