NB4N1158DTG

Overview

The NB4N1158DTG is a high-performance serial link replicator designed for Fibre Channel, Gigabit Ethernet, HDTV, and SATA applications. It operates at data rates up to 1.5 Gb/s with LVPECL inputs and outputs. The device features three differential inputs (IN, IN0, IN1) and three differential outputs (OUT, OUT0, OUT1), controlled by multiplexer and output enable pins. Powered by a single 3.3 V supply (3.14 V to 3.47 V), it dissipates a maximum of 330 mW. Packaged in a 28-lead TSSOP (4.4 mm x 9.7 mm), it supports deterministic jitter of up to 40 ps pk-pk.

Feature Summary

• Replicates Fibre Channel, Gigabit Ethernet, HDTV, and Serial ATA links
• Compliant with T11 Fibre Channel standards at 1.0625 Gb/s
• IEEE 802.3z Gigabit Ethernet compliant at 1.25 Gb/s
• SMPTE-292M compliant at 1.485 Gb/s

Applications

• Fibre Channel loop replication and loopback control
• Host Bus Adaptors routing between internal and external connectors
• Hot-pluggable links between redundant switch fabric cards

Procurement Notes

Verify the DT suffix indicates a Pb-Free package in the 28-TSSOP format. Confirm the operating temperature range covers -40°C to +85°C. Ensure external termination resistors are included in the design, as the device requires them for proper LVPECL operation.

Selection Notes

Select this component when a 3:3 input-to-output ratio is required for serial link replication. Verify that the system accommodates LVPECL signaling levels and provides the necessary 3.3 V power rails. Check if the 28-TSSOP footprint fits the PCB layout constraints.

Part Context

This part belongs to the NB4N1158 series from onsemi. It serves as a specialized timing and clock solution for high-speed serial data interfaces, distinct from standard logic gates or general-purpose multiplexers.

Replacement Considerations

Check for pin-compatible alternatives within the same family. Verify that any substitute maintains the 1.5 Gb/s speed capability and LVPECL interface requirements.