1.0625Gbps To 11.3Gbps, SFP+ Dual-Path Limiting Amplifier

The MAX3945 is a +3.3V, multirate, low-power Limiting Amplifier optimized for Fibre Channel and Ethernet transmission systems at data rates up to 11.3Gbps. The high-sensitivity Limiting Amplifier limits the signal generated by a Transimpedance Amplifier into a CML-level differential output signal. All differential inputs and outputs (I/O) are optimally back terminated for 50Ω transmission line PCB design. The MAX3945 's dual-path Limiting Amplifier has programmable filtering to optimize sensitivity for different data rates and to suppress relaxation oscillations that could occur in some optical systems. The MAX3945 incorporates two loss-of-signal (LOS) circuits and a programmable time mask for the LOS output. By Maxim Integrated Products