NB3N3010BDG

Overview

The NB3N3010BDG is a precision, low-noise clock multiplier designed for USB applications. It utilizes Frequency-Locked-Loop (FLL) techniques to generate a 12.288 MHz output from a 4 kHz or 8 kHz reference input derived from USB Start-of-Frame pulses. The device features two LVCMOS outputs with low skew and operates on a single +3.3 V supply. It includes an internal voltage regulator and is housed in an SOIC-8 package.

Feature Summary

• Generates 12.288 MHz frequency-locked to 4 kHz or 8 kHz USB reference inputs
• Fully integrated FLL with internal loop filter and +1.8 V linear regulator
• Low skew dual LVCMOS outputs preserve codec noise floor
• Low power consumption: 35 mA operating current at 3.3 V

Applications

• Oversampling A-to-D converters
• Oversampling D-to-A converters
• USB audio interface circuits

Procurement Notes

Verify the specific ordering suffix 'DG' corresponds to the SOIC-8 tube packaging configuration as listed in official documentation. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability may vary by region and production cycle.

Selection Notes

Select this component when a stable 12.288 MHz clock is required from a low-frequency USB SOF pulse. Ensure the design accommodates the 220 nF to 270 nF CFILT capacitor for the internal regulator. Verify that the 3.3 V supply tolerance of ±5% meets system requirements.

Part Context

This part belongs to the NB3N3010B series of audio oversampling clock generators. It is specifically engineered to replace discrete PLL solutions in USB audio systems, offering a compact footprint and reduced bill of materials by integrating the frequency multiplier and output buffers into a single IC.

Replacement Considerations

Check for direct pin-compatible alternatives within the same family, such as variants in DFN-8 packaging (e.g., NB3N3010BMNG), if space constraints differ. No other cross-model substitutes are confirmed in public documentation.