Product Summary

The GS2972-IBE3 is a high-speed BiCMOS integrated circuit designed to equalize and restore signals received over 75Ω co-axial cable. The GS2972-IBE3 is designed to support SMPTE 424M, SMPTE 292M and SMPTE 259M, and is optimized for performance at 1.485Gb/s and 2.97Gb/s. The GS2972-IBE3 features DC restoration to compensate for the DC content of SMPTE pathological test patterns. A voltage programmable mute threshold (MCLADJ), applicable for SD mode (refer to Section 4.3), is included to allow muting of the GS2972-IBE3 output when an approximate selected cable length is reached for SMPTE 259M signals. This feature allows the device to distinguish between low amplitude SD-SDI signals and noise at the input of the device. The serial digital outputs of the GS2972-IBE3 may be forced to a mute state by applying a voltage to the MUTE pin. The applications of the GS2972-IBE3 include SMPTE 424M, SMPTE 292M and SMPTE 259M Coaxial Cable Serial Digital Interfaces.

Parametrics

GS2972-IBE3 absolute maximum ratings: (1)Supply Voltage: -0.3V to +3.6 VDC; (2)Input ESD Voltage: 2kV; (3)Storage Temperature Range: -50℃ < Ts < 125℃; (4)Input Voltage Range (any input): -0.3 to (VCC +0.3)V; (5)Operating Temperature Range: 0℃ to 70℃; (6)Solder Reflow Temperature: 260℃.

Features

GS2972-IBE3 features: (1)SMPTE 424M, SMPTE 292M and SMPTE 259M compliant; (2)Automatic cable equalization; (3)0.3UI Maximum Output Jitter at 2.97Gb/s; (4)Multi-standard operation from 143Mb/s to 2.97Gb/s; (5)Supports DVB-ASI at 270Mb/s; (6)Small footprint (4mm x 4mm); (7)Pb-free and RoHS compliant; (8)Manual bypass (useful for low data rates with slow rise/fall times); (9)Performance optimized for 1.485Gb/s and 2.97Gb/s; (10)Typical equalized length of Belden 1694A cable: 120m at 2.97Gb/s, 200m at 1.485Gb/s, and 350m at 270Mb/s; (11)50?differential output (internal 50?pull-ups); (12)Programmable mute based on max cable length adjust; (13)Single 3.3V power supply operation; (14)Operating temperature range: 0℃ to +70℃.

Diagrams

GS2972-IBE3 block diagram

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