ASM3P2814BF-08TR

Overview

The ASM3P2814BF-08TR is a low-power EMI reduction IC designed to attenuate electromagnetic interference in high-speed digital systems. It generates a 4x spread spectrum clock from an input frequency range of 10MHz to 40MHz, producing outputs between 40MHz and 160MHz. The device provides up to 15dB of EMI reduction using an FCC-approved all-digital modulation method. Operating at 3.3V with CMOS/TTL compatible I/O, it features selectable center or down spread options and eight frequency deviation settings. The component is housed in an 8-pin TSSOP package.

Feature Summary

• Generates a 4x spread spectrum clock output from 10MHz–40MHz inputs
• Provides up to 15dB EMI reduction via FCC-approved digital modulation
• Selectable spread modes (Center/Down) and frequency deviations (±0.625% to -3.5%)
• Internal loop filter minimizes external component count

Applications

• Mobile graphic chipsets
• PC peripheral devices
• Consumer electronics
• Embedded controller systems

Procurement Notes

Verify the ordering suffix 'BF' corresponds to the 8-pin TSSOP package and the '-08TR' indicates tape and reel packaging. Confirm the operating temperature range is 0°C to 70°C for this specific variant. Ensure the application requires a 4x multiplication factor suitable for the 40MHz–160MHz output range.

Selection Notes

Select this model when a 4x frequency multiplication is required for EMI management. Verify that the input clock falls within the 10MHz to 40MHz range. Check if the 0°C to 70°C commercial temperature range meets system requirements. Compare against pin-compatible alternatives like the CY25814 if design flexibility is needed.

Part Context

This part belongs to the ASM3P28XX family of spread spectrum frequency modulators. The '14' designation specifically indicates the 4x multiplication capability, distinguishing it from the 1x (ASM3P2811) and 2x (ASM3P2812) variants. The 'B' suffix denotes specific spread deviation characteristics compared to the 'A' series.

Replacement Considerations

Pin-out compatible with Cypress CY25814. Verify electrical parameter alignment, particularly supply current and jitter specifications, before substitution.