onsemi Integrated Circuits (ICs) - Logic - Signal Switches, Multiplexers, Decoders NB4N840MMNG

The NB4N840MMNG is a dual 2 x 2 crosspoint switch designed for high-speed applications, featuring a fully differential architecture that minimizes jitter, crosstalk, and signal skew. It operates at a maximum input data frequency of 3.2 Gb/s and supports clock frequencies up to 2.7 GHz. The device includes internally terminated differential CML inputs that accept AC-coupled LVPECL or direct coupled CML signals, eliminating the need for external components and reducing interface reflections. This switch is configurable for various functions, including 1:2 fan-out, repeater, or standard crosspoint switching, controlled via single-ended LVCMOS/LVTTL select inputs. The NB4N840MMNG is housed in a compact 5 x 5 mm 32-pin QFN package and offers a typical propagation delay of 225 ps, rise and fall times of 80 ps, and low power consumption of 430 mW. It operates within a voltage range of 3.0 V to 3.6 V and features a power-saving mode with disabled outputs. The device is Pb-free, making it suitable for environmentally conscious applications.