GS2974A Datasheet, PDF (9/16 Pages) Gennum Corporation – HD-LINX III Adaptive Cable Equalizer

50
SDO
50
SDO
Figure 3-3: Output Circuit
MUTE,
BYPASS
CD
Figure 3-4: MUTE and BYPASS Circuits
Figure 3-5: CD Circuit
4. Detailed Description
The GS2974A is a high speed BiCMOS IC designed to equalize serial digital signals.
The GS2974A can equalize both HD and SD serial digital signals, and will typically
equalize 120m of Belden 1694A cable at 2.97Gb/s, 200m at 1.485Gb/s and 350m at
270Mb/s.The GS2974A 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.
GS2974A HD-LINX™ III Adaptive Cable Equalizer
Data Sheet
42216 - 3
January 2009
9 of 16