General Description

The MAX3798 is a highly integrated limiting amplifier and VCSEL driver designed for 1x/2x/4x/8x Fibre Channel transmission systems at data rates up to 8.5Gbps as well as for 10GBASE-SR transmission systems at a data rate of 10.3125Gbps.

Features

♦ Low Power Dissipation of 320mW at 3.3V Power Supply

♦ Up to 10.32Gbps (NRZ) Operation

♦ 3mVP-P Receiver Sensitivity at 10.32Gbps

♦ 4psP-P DJ at Receiver Output at 8.5Gbps 8B/10B

♦ 4psP-P DJ at Receiver Output at 10.32Gbps 231 - 1 PRBS

♦ 26ps Rise and Fall Time at Rx/Tx Output

♦ Mode Select for High-Gain Mode and HighBandwidth Mode

♦ CML Output Slew-Rate Adjustment for High-Gain Mode

♦ CML Output with Continuous Level Adjustment

♦ CML Output Squelch

♦ Polarity Select for Rx and Tx

♦ LOS Assert Level Adjustment

♦ LOS Polarity Select

♦ Modulation Current Up to 12mA Into 100Ω Differential Load

♦ Bias Current Up to 15mA

♦ Integrated Eye Safety Features

♦ Selectable Deemphasis at Rx Output

♦ 3-Wire Digital Interface

♦ Eye-Crossing Adjustment of Modulation Output

♦ Programmable Deemphasis at Tx Output

♦ Fast Mode-Select Change Time of 10µs

Applications

    10GBASE-SR SFP+ Optical Transceiver

    1x/2x/4x/8x SFF/SFP/SFP+ MSA Fibre Channel (FC) Optical Transceiver

    10GBASE-LR SFP+ Optical Transceiver (1310nm VCSEL)

    10GBASE-LRM SFP+ Optical Transceiver (1310nm VCSEL)