3.3 V USB 3.1 Quad Channel / Dual Port Linear Redriver

The NB7NPQ7042M is a 3.3 V quad channel / dual port linear redriver suitable for USB 3.1 Gen 1 and USB 3.1 Gen 2 applications that supports both 5 Gbps and 10 Gbps data rates. Signal integrity degrades from PCB traces, transmission cables, and inter−symbol interference (ISI). The NB7NPQ7042M compensates for these losses by engaging varying levels of equalization at the input receiver, and flat gain amplification on the output transmitter. The Flat Gain and Equalization are controlled by four level control pins. Each channel has a set of independent control pins to make signal optimization possible.After power up, the NB7NPQ7042M periodically checks both of the TX output pairs of each port for a receiver connection. When the receiver is detected on both channels, the RX termination becomes enabled of that respective port and is set to perform the redriver function.The port becomes active once both TX outputs have detected 50−ohm termination, and the NB7NPQ7042M is set to perform the redriver function. Port AB (channels A & B) and port CD (channels C & D) are independent of each other.The NB7NPQ7042M comes in a small 3.1 x 4.3 mm X2QFN34 package and is specified to operate across the entire industrial temperature range, –40°C to 85°C.