NB2308AI5HDTG

Overview

The NB2308AI5HDTG is a 3.3 V zero delay clock buffer from onsemi, designed for high-speed clock distribution. It features an internal PLL that locks to a reference clock on the REF pin, with feedback driven from one of eight outputs to the FBK pin. The device guarantees input-to-output propagation delay under 250 ps and output-to-output skew under 200 ps. It operates within a frequency range of 15 MHz to 133.3 MHz and supports a supply voltage of 3.0 V to 3.6 V. The 'I' suffix indicates industrial temperature operation (-40°C to +85°C), while '5H' denotes a specific configuration providing divided reference clocks on both banks in a high-drive TSSOP-16 package.

Feature Summary

• Zero Delay Buffer: Input-to-output propagation delay < 250 ps; adjustable via capacitive load on FBK.
• Low Skew Performance: Output-to-output skew < 200 ps; device-to-device skew < 700 ps.
• Configurable Outputs: Eight CMOS outputs organized into two banks of four, controllable via S1/S2 select inputs.
• High Drive Capability: The 'H' variant offers faster rise/fall times compared to standard versions.

Applications

• High-speed clock distribution networks
• System synchronization in computing platforms
• Multi-device clock skew minimization

Procurement Notes

Verify the exact ordering suffix against the datasheet table. The 'D' suffix corresponds to the TSSOP-16 package (CASE 948F). Confirm the 'G' suffix for lead-free status if required. Check current availability as this component may be subject to end-of-life status or limited stock depending on the distributor.

Selection Notes

Select based on required frequency range (up to 133.3 MHz) and temperature grade ('I' for -40°C to +85°C). Ensure the '5H' configuration matches the system's need for divided reference clocks on both banks. Verify package compatibility with the PCB footprint for TSSOP-16.

Part Context

This part belongs to the NB2308A family of 3.3 V zero delay buffers. Variants differ by output configuration (x1 to x5H) and drive strength. The AI5HDTG specifically combines industrial temperature rating, the 5H frequency division feature, and the TSSOP-16 surface-mount package.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer for current alternative recommendations.