GS2984

GS2984 Adaptive Cable Equalizer Key Features SMPTE 424M, SMPTE 292M and SMPTE 259M compliant Automatic cable equalization Multi-standard operation from 143Mb/s to 2.97Gb/s Performance optimized for 270Mb/s, 1.485Gb/s and 2.97Gb/s. Typical equalized length of Belden 1694A cable: Š 140m at 2.97Gb/s Š 200m at 1.485Gb/s Š 400m at 270Mb/s Supports DVB-ASI at 270Mb/s Manual bypass (useful for low data rates with slow rise/fall times) Programmable carrier detect with squelch threshold adjustment Differential outputs support DC coupling to 3.3V and 2.5V CML logic 0/6 dB gain boost selection pin Standard EIA/JEDEC logic control and status signal levels Single 3.3V power supply operation 195mW power consumption (typical) Wide temperature range of -40ºC to +85ºC Small footprint QFN package (4mm x 4mm) Š Drop-in compatible with the GS2974 Pb-free and RoHS compliant Applications SMPTE 424M, SMPTE 292M and SMPTE 259M coaxial cable serial digital interfaces Description The GS2984 is a high-speed BiCMOS integrated circuit designed to equalize and restore signals received over 75Ω coaxial cable. The device is designed to support SMPTE 424M, SMPTE292M and SMPTE 259M, and is optimized for performance at 270Mb/s, 1.485Gb/s and 2.97Gb/s. The GS2984 features DC restoration to compensate for the DC content of SMPTE pathological test patterns. The Carrier Detect output pin (CD) indicates whether a valid input signal has been detected. It can be connected directly to...