MAX3799ETJ+T

The MAX3799ETJ+T is a 1Gbps to 14Gbps, SFP+ multirate limiting amplifier and VCSEL driver in 32 pin TQFN package. It is a highly integrated limiting amplifier and VCSEL driver that operates up to 14Gbps. By providing a selectable data path with a noise-shaping filter, the MAX3799 enables a module with 10G optics to be fully compliant with both 1000BASE-SR and 10GBASE-SR specifications. This low-power integrated limiting amplifier and VCSEL driver IC enables a platform design for SFP MSA as well as for SFP+ MSA-based optical transceivers. It limits the differential input signal generated by a transimpedance amplifier into a CML-level differential output signal. The compact VCSEL driver provides a modulation and a bias current for a VCSEL diode. The optical average power is controlled by an APC loop implemented by a controller that interfaces to VCSEL driver through a 3-wire digital interface. All differential I/Os are optimally back terminated for a 50 ohm transmission line PCB design.

• Supply voltage range is 2.85V to 3.63V
• Operating temperature range from -40°C to 85°C
• Optical sensitivity of -21.5dBm at 1.25Gbps using a 10.32Gbps ROSA (-19.7dBm OMA)
• Low power dissipation of 320mW at 3.3V power supply
• 3mVP-P receiver sensitivity at 10.32Gbps
• 4psP-P DJ at receiver output at 8.5Gbps 8B/10B
• 3-wire digital interface
• 26ps rise and fall time at Rx/Tx output
• LOS threshold, LOS squelch, LOS polarity, CML output level, signal path polarity and de-emphasis
• Modulation current, bias current, polarity and eye safety control

Note

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party