NBSG11BA

Clock Buffers, Drivers Overview

The NBSG11BA is a SiGe-based 1-to-2 differential fanout buffer manufactured by onsemi. It features Reduced Swing ECL (RSECL) outputs with a typical 400 mV peak-to-peak amplitude. The device incorporates internal 50 Ω input termination resistors and supports multiple input formats including NECL, PECL, CML, LVCMOS, LVTTL, and LVDS. It operates within a supply voltage range of 2.375 V to 3.465 V for positive logic or -2.375 V to -3.465 V for negative logic. Key electrical parameters include a maximum frequency of 12 GHz, typical propagation delay of 125 ps, and RMS random clock jitter of 0.2 ps at frequencies below 10 GHz.

Clock Buffers, Drivers Feature Summary

• Maximum Input Clock Frequency up to 12 GHz Typical
• Internal 50 Ω Input Termination Resistors
• Ultra-Low Jitter: 0.2 ps RMS Random Clock Jitter (< 10 GHz)
• Typical Propagation Delay of 125 ps

Clock Buffers, Drivers Applications

• High-speed clock distribution networks
• Differential fanout buffering for data converters
• Telecommunications infrastructure timing systems

Clock Buffers, Drivers Procurement Notes

Verify the package suffix 'BA' corresponds to the FCBGA-16 format when sourcing. Confirm that the specific revision matches the required thermal and mechanical specifications. Ensure ordering documentation explicitly states the lead-free status if required by assembly processes. Cross-reference the part number against current manufacturer availability lists to confirm active production status.

Clock Buffers, Drivers Selection Notes

Select this component for applications requiring low skew and ultra-low jitter in high-frequency environments. Ensure the design accommodates the specific RSECL output swing requirements and termination voltages (VTT = VCC - 2.0 V). Verify that the PCB layout supports the FCBGA-16 package dimensions and thermal dissipation needs for the intended operating temperature range.

Clock Buffers, Drivers Part Context

The NBSG11BA belongs to the NBSG11 family of SiGe differential clock drivers. It serves as a fanout buffer designed to drive two differential loads from a single source while maintaining signal integrity. The BA suffix specifically identifies the Flip Chip Ball Grid Array (FCBGA) packaging variant, distinguishing it from QFN or LGA options within the same functional family.

Clock Buffers, Drivers Replacement Considerations

Direct replacements within the same family include NBSG11MAG (FCLGA-16), NBSG11MN (QFN-16), and NBSG11MNG (Pb-Free QFN-16). These variants share identical electrical characteristics but differ in physical package dimensions and pinout configurations. Evaluate board space and thermal constraints before substituting.