MAX3987 8.5Gbps Quad Equalizer and Preemphasis Driver

The MAX3987 is a 4-channel receive and transmit equalizer (EQ). It compensates for transmission medium losses encountered with FR4 stripline/microstrip and/or high-speed cable. The device can be used at the beginning, middle, or end of a channel. The input equalization requires no setting, and the output preemphasis (PE) is programmable.

For each channel, the preemphasis level, output drive level, output polarity, and powering down of unused outputs are programmable through an I2C serial interface. It can also be configured globally through pins.

The device operates from a 2.5V or 3.3V supply, and is packaged in a 7mm x 7mm, 48-pin TQFN.

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