MAX3945ETE+T (MAXIM INTEGRATED PRODUCTS)

The MAX3945ETE+T is a 1.0625Gbps to 11.3Gbps, SFP+ dual path limiting amplifier in 16 pin TQFN package. This 3.3V, multirate, low power limiting amplifier is optimized for fibre channel and Ethernet transmission systems at data rates up to 11.3Gbps. The high sensitivity limiting amplifier limits signal generated by transimpedance amplifier into CML level differential output signal. All differential inputs and outputs are optimally back terminated for 50ohm transmission line PCB design. It 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 programmable time mask for LOS output. A 3-wire digital interface reduces pin count and enables control of LOS threshold, LOS polarity, LOS mode, CML output level, input offset correction, receive (Rx) polarity, Rx input filter and Rx deemphasis without need for external components.