BU3087FV-E2

Overview

The BU3087FV-E2 is a spread-spectrum clock generator manufactured by ROHM Semiconductor, housed in an SSOP-B16 package. It operates on a single supply voltage ranging from 3.135 V to 3.465 V with a typical operating current of 45 mA. The device accepts a 27 MHz reference frequency and generates a system clock output up to 768 MHz. Key electrical specifications include a typical jitter of 35 ps (1σ) and a maximum output frequency of 74.25 MHz as listed in distributor data. It functions within an ambient temperature range of -10°C to +75°C.

Feature Summary

• Built-in VCXO for precise clock generation
• Selectable spread-spectrum modulation rates: ±0.25%, ±0.50%, ±0.75%, or ±1.00%
• Supports triangular modulation profiles
• Compatible with standard 3225 size crystals

Applications

• EMI reduction in high-speed digital circuits
• Clock distribution systems requiring jitter attenuation
• Consumer electronics utilizing spread-spectrum techniques

Procurement Notes

The BU3087FV-E2 is classified as End-of-Life (EOL) by the manufacturer. Current availability is restricted or unavailable through major distributors such as Mouser. Verification of stock status and alternative sourcing channels is required before procurement planning.

Selection Notes

Designers should verify the specific output frequency requirements against the documented limits, noting discrepancies between the 768 MHz internal capability and the 74.25 MHz max output listed in some catalogs. Ensure the power supply remains strictly within the 3.135 V to 3.465 V range to maintain specified jitter performance.

Part Context

This component belongs to the BU3087FV series of clock generators. The suffix 'E2' typically denotes RoHS compliance and specific packaging configurations. It is part of ROHM's portfolio for managing electromagnetic interference in clock signals.

Replacement Considerations

As this part is discontinued, direct substitutes are not explicitly confirmed in the provided documentation. Engineers must evaluate third-party spread-spectrum clock generators with compatible voltage ranges and SSOP-16 packages.

FAQ

What modulation types does the BU3087FV support?

The device supports triangular modulation with selectable rates of ±0.25%, ±0.50%, ±0.75%, and ±1.00%.

Is the BU3087FV-E2 currently in production?

No, the BU3087FV-E2 is marked as End-of-Life (EOL) and is no longer actively produced.

What crystal size is recommended for this IC?

The datasheet indicates that a standard 3225 size crystal is usable for operation.