NBXSBA019LN1TAG

Programmable Timers And Oscillators Overview

The NBXSBA019LN1TAG is a single and dual frequency crystal oscillator from onsemi's PureEdge/C0116 family. It provides selectable 125 MHz or 250 MHz LVPECL differential outputs using a high Q fundamental crystal and PLL multiplier. The device operates at 3.3 V ±10% with an operating temperature range of -40°C to +85°C. Key electrical parameters include a power supply current of 78 mA typical, total frequency stability of ±50 ppm, and RMS phase jitter of 0.4 ps (12 kHz to 20 MHz). It features hermetically sealed ceramic packaging in a 6-pin CLCC-6 (7x5 mm) SMD package.

Programmable Timers And Oscillators Feature Summary

• Selectable output frequencies: 125 MHz (default/open FSEL) or 250 MHz (FSEL LOW)
• Ultra-low jitter and phase noise: 0.4 ps RMS jitter (12 kHz–20 MHz), -112 dBc/Hz at 100 Hz offset
• Hermetically sealed ceramic SMD package (CLCC-6, Case 848AB)
• LVPECL differential outputs with OE control input

Programmable Timers And Oscillators Applications

• Ethernet and Gigabit Ethernet systems
• Infiniband interconnects
• Base station timing applications

Programmable Timers And Oscillators Procurement Notes

Verify the part number suffix 'LN1TAG' corresponds to the CLCC-6 package and tape & reel shipping quantity of 1000 units. Confirm RoHS compliance and Pb-free status as specified in the ordering information table. Ensure the application circuit supports the required VTT termination voltage of VDD - 2.0 V for proper LVPECL operation.

Programmable Timers And Oscillators Selection Notes

Select this component when a hermetically sealed clock source is required for high-reliability networking equipment. The FSEL pin allows frequency selection between 125 MHz and 250 MHz; ensure the design accounts for the logic level requirements (LVTTL/LVCMOS) for the OE and FSEL inputs. Verify that the PCB layout accommodates the 7x5 mm CLCC footprint and provides adequate thermal dissipation for the 78 mA typical supply current.

Programmable Timers And Oscillators Part Context

This device belongs to the NBXxBA019 series, which includes variants like NBXDBA019 and NBXHBA019. The NBXSBA019 variant specifically defaults to 250 MHz when FSEL is HIGH and switches to 125 MHz when FSEL is LOW, whereas other series members may have different default behaviors or fixed frequencies. It is part of the PureEdge family designed for precision clock generation.

Programmable Timers And Oscillators Replacement Considerations

Direct replacements within the same family include NBXDBA019LN1TAG and NBXHBA019LN1TAG, provided their specific frequency configurations match the system requirements. Cross-family replacement requires verification of pin compatibility, output swing levels, and phase noise specifications against the original design constraints.