NB2308AC1HDG

Overview

The NB2308AC1HDG is a commercial-grade, 3.3 V zero delay clock buffer manufactured by onsemi. It features an integrated PLL that locks to a reference clock input and distributes the signal across eight outputs organized into two banks of four. The device guarantees an input-to-output propagation delay under 250 ps and output-to-output skew below 200 ps. It operates within a frequency range of 15 MHz to 133 MHz using a 3.0 V to 3.6 V supply. The part is housed in a 16-pin SOIC package (CASE 751B) and utilizes advanced 0.35 µm CMOS technology.

Feature Summary

• Zero delay buffer with adjustable input-to-output propagation delay via capacitive load on the FBK pin
• Low-skew performance: Output-to-output skew < 200 ps; Device-to-device skew < 700 ps
• Configurable output banks with three-state control via S1 and S2 select inputs
• Cycle-to-cycle jitter less than 200 ps at 66.67 MHz

Applications

• High-speed clock distribution systems
• Multi-device synchronization requiring low skew
• System testing via direct input clock bypass mode

Procurement Notes

Verify the specific suffix 'HDG' corresponds to the high-drive commercial variant in the SOIC-16 package. Confirm RoHS compliance status as indicated by the 'G' suffix. Check current availability as this component family may have end-of-life notifications or limited stock from authorized distributors.

Selection Notes

Select the NB2308AC1HDG for applications requiring the high-drive version of the base -1 configuration. Ensure the feedback path connects to Bank A or Bank B outputs to maintain reference frequency distribution. Verify that the load capacitance requirements (15 pF for >100 MHz, 30 pF otherwise) are met to achieve specified timing parameters.

Part Context

This part belongs to the NB2308A family of zero delay buffers. The 'C' indicates commercial temperature range (0°C to 70°C). The '1' denotes the base configuration where outputs equal the reference frequency. The 'H' specifies the high-drive variant with faster rise/fall times compared to the standard version.

Replacement Considerations

NB2308AI1HDG (Industrial temperature grade equivalent)