NB2308AI3DR2G

Overview

The NB2308AI3DR2G is a 3.3 V zero delay clock buffer manufactured by onsemi, designed for high-speed clock distribution. It features an integrated PLL that locks to a reference clock input and provides eight buffered outputs organized into two banks of four. The device supports an input frequency range from 15 MHz to 133 MHz. Key electrical specifications include an output-to-output skew of less than 200 ps and a cycle-to-cycle jitter of less than 200 ps. It operates within a supply voltage range of 3.0 V to 3.6 V and is available in a 16-pin SOIC package.

Feature Summary

• Zero Delay Buffer with adjustable input-to-output propagation delay via capacitive load on the FBK pin
• Integrated PLL supporting input frequencies from 15 MHz to 133 MHz
• Low-skew performance with output-to-output skew under 200 ps and device-to-device skew under 700 ps
• Two selectable output banks (Bank A and Bank B) with three-state control

Applications

• High-speed clock distribution systems
• Multi-chip module synchronization
• System testing and validation using bypass mode

Procurement Notes

Verify the ordering suffix 'R2G' corresponds to the Tape & Reel packaging configuration containing 2500 units per reel. Confirm the component meets Pb-Free requirements as specified in the manufacturer's documentation. Ensure compatibility with industrial and commercial temperature ranges (-40°C to +85°C).

Selection Notes

Select this specific variant when a 4X frequency multiplication on Bank B and 2X on Bank A is required relative to the feedback source. Verify that the application requires the 16-pin SOIC package rather than the TSSOP option. Ensure the design accommodates the 3.3 V supply voltage and appropriate load capacitance constraints for the target operating frequency.

Part Context

This part belongs to the NB2308A family of 3.3 V zero delay buffers. The AI3 designation indicates a specific internal configuration where connecting the feedback pin to Bank B yields 4X the reference frequency on Bank B and 2X on Bank A. Other variants in the series offer different frequency multiplication ratios or high-drive capabilities.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the verified source material.