NB2308AI1DR2G

Overview

The NB2308AI1DR2G is a 3.3 V zero delay clock buffer manufactured by onsemi, designed for distributing high-speed clocks in industrial environments. It features an internal PLL that locks to a reference clock input and provides eight buffered outputs organized into two banks of four. The device guarantees an input-to-output propagation delay of less than 250 ps and output-to-output skew of less than 200 ps. It operates within a supply voltage range of 3.0 V to 3.6 V and supports frequencies from 15 MHz to 133.3 MHz. Packaged in a 16-pin SOIC (D suffix) with tape and reel shipping, it utilizes advanced CMOS technology.

Feature Summary

• Zero Delay Buffer: Input-to-output propagation delay < 250 ps; adjustable via capacitive load on FBK pin.
• Low Skew Performance: Output-to-output skew < 200 ps; device-to-device skew < 700 ps.
• Configurable Outputs: Two banks of four outputs controllable via S1/S2 select inputs for three-stating or direct bypass.
• Industrial Grade: Operates at temperatures from -40°C to +85°C with 3.3 V supply.

Applications

• High-speed clock distribution networks requiring low skew.
• System testing where direct input clock application to outputs is required.
• Multi-device synchronization scenarios demanding tight inter-device skew control.

Procurement Notes

Verify the 'I' suffix confirms the Industrial temperature range (-40°C to +85°C). Confirm the 'DR2G' suffix indicates Tape & Reel packaging with Pb-free compliance. Check manufacturer documentation for End-of-Life status, as this component family has been subject to discontinuation notices.

Selection Notes

Select based on required operating temperature; use 'C' for commercial (0°C to 70°C) or 'I' for industrial. Ensure the feedback path configuration matches the desired frequency multiplication (e.g., x1, x2, x4). Verify load capacitance requirements (15 pF for >100 MHz, 30 pF for <100 MHz) to maintain specified jitter and skew performance.

Part Context

This part belongs to the NB2308A family of 3.3 V Zero Delay Clock Buffers. Variants include different output configurations (x1 through x5H) and drive strengths ('H' suffix for faster rise/fall times). The base model NB2308A/D covers both Commercial and Industrial grades across SOIC-16 and TSSOP-16 packages.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.