NB2870ASNR2

Overview

The NB2870ASNR2 is a clock and frequency synthesizer integrated circuit manufactured by onsemi. It operates with a maximum frequency of 30MHz and utilizes CMOS technology for both input and output signals. The device accepts CMOS or crystal inputs and provides CMOS outputs. It is housed in a PDSO6 package, specifically identified as a TSOP-6 or SOT-23-6 Thin/TSOT-23-6 configuration. The component functions within an operating temperature range of 0°C to 70°C. Designed as part of the EMI Reducer Series, it serves as a low-power clock generator intended to mitigate electromagnetic interference in digital systems.

Feature Summary

• Generates clock signals using CMOS logic levels for compatibility with standard digital interfaces.
• Accepts crystal or CMOS signals as input sources for frequency synthesis.
• Engineered to reduce electromagnetic interference (EMI) in high-speed digital circuits.
• Delivers stable clock outputs suitable for timing-critical applications.

Applications

• Clock generation for general-purpose digital electronics
• Timing reference sources for microprocessors and memory devices
• EMI reduction in high-speed data transmission lines
• Frequency synthesis for communication interface modules

Procurement Notes

Verify the exact package marking and date code against the official onsemi datasheet to ensure authenticity. Confirm that the TSOP-6 pinout matches the schematic requirements, as variations exist between thin TSOP and standard SOIC packages. Check for RoHS compliance status if required by specific environmental regulations. Ensure the operating temperature range meets the system's thermal design constraints.

Selection Notes

Select this component when a low-cost, low-power clock solution is needed for frequencies up to 30MHz. It is suitable for designs requiring EMI reduction without complex programming. Consider the small TSOP-6 footprint for space-constrained layouts. Verify that the CMOS input/output voltage levels align with the system's power supply rails. This device is appropriate for non-critical timing applications where jitter specifications are less stringent than those of dedicated jitter-cleaner ICs.

Part Context

The NB2870ASNR2 belongs to onsemi’s EMI Reducer Series, which focuses on minimizing noise in digital systems. It is a fixed-frequency or programmable clock synthesizer designed for simplicity and cost-effectiveness. The series targets consumer electronics and industrial control applications where reliable timing is essential but advanced features like spread spectrum are not mandatory. It complements onsemi’s broader portfolio of timing and clock management solutions.

Replacement Considerations

Public confirmed substitute part numbers: NB2879ASNR2G. Both devices share similar low-power, reduced EMI characteristics and CMOS I/O levels. Verify frequency stability and package dimensions before substitution. The NB2879 variant may offer different frequency options or enhanced performance metrics; consult the respective datasheets for electrical parameter comparisons.