Skyworks Solutions Inc. 541EAB000346BBG

Overview

541EAB000346BBG from Skyworks Solutions is an ultra-low-jitter dual-output crystal oscillator (XO) based on 4th-generation DSPLL® technology, delivering two factory-programmed frequencies between 0.2 MHz and 1500 MHz with <1 ppb resolution. It features 125 fs typical RMS phase jitter (12 kHz–20 MHz), ±7 ppm frequency stability over –40 to +85 °C, and supports LVPECL/LVDS/CML/HCSL/CMOS/Dual CMOS output formats. It is deployed in high-speed optical networking equipment requiring precise, noise-immune clock synthesis.

For engineers reviewing the 541EAB000346BBG datasheet, 541EAB000346BBG pinout, 541EAB000346BBG application, or 541EAB000346BBG equivalent, this page provides verified technical context, package-validated pin functions, real-world application mappings, and confirmed alternative options for dual-frequency timing in 100G/400G coherent optics, FPGA clocking, and broadcast video systems.

Technical Context

The 541EAB000346BBG implements a digitally controlled oscillator (DCO) within a fractional-N DSPLL architecture, enabling independent, glitch-free switching between two user-defined frequencies via the FS pin. Its on-chip digital loop filter and phase detector eliminate external loop components while maintaining sub-200 fs jitter across integer and fractional outputs.

It integrates power supply regulation with –80 dBc typical PSNR and supports 1.8 V / 2.5 V / 3.3 V operation from a single part number. The device uses a fixed-frequency crystal resonator combined with programmable dividers and format-selectable low-noise drivers - eliminating crystal-bin dependencies and enabling 1–2 week custom-frequency sampling.

Key Specifications

Pinout & Package

541EAB000346BBG is housed in a 3.2×5 mm 6-pin CLCC package (Moisture Sensitivity Level 1), with gold/nickel contact pads and industry-standard land pattern per IPC-7351. Thermal resistance is 55 °C/W (junction-to-ambient) under still-air conditions.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-frequency oscillator applications.

Compared with Si540AAB000346BBG and ICS8430I-01LG, the 541EAB000346BBG uniquely delivers field-selectable dual frequencies with ultra-low jitter and multi-voltage support - enabling flexible, future-proof clock architecture in high-performance optical and compute platforms.

Availability

541EAB000346BBG is available at Aetrix Electronics and suitable for 100G/400G optical transceivers, FPGA-based AI accelerators, broadcast video infrastructure, and enterprise server timing applications requiring stable component supply, rapid customization, and guaranteed long-term availability.

Supply support for 541EAB000346BBG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Skyworks Solutions is a global semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, timing, and power management technologies for communications, automotive, and industrial markets.

The Si541 Ultra Series™ is designed specifically for high-speed digital systems demanding ultra-low jitter, dual-frequency flexibility, and robust noise immunity - targeting next-generation optical networking, data center infrastructure, and professional AV equipment.

FAQ

What output frequencies does the 541EAB000346BBG support?

The 541EAB000346BBG supports two factory-programmed frequencies ranging from 0.2 MHz to 1500 MHz for LVPECL/LVDS/CML outputs, 0.2–400 MHz for HCSL, and 0.2–250 MHz for CMOS. The exact pair is defined at order time using Skyworks' online configurator, and both frequencies maintain <1 ppb resolution and 125 fs typical jitter across the range. The 541EAB000346BBG does not support user runtime reprogramming.

How is frequency selection implemented on the 541EAB000346BBG?

Frequency selection on the 541EAB000346BBG is controlled by the FS (Frequency Select) pin, which toggles between the two pre-programmed output frequencies. The FS pin is configurable during ordering to reside on Pin 1 or Pin 2 and may share the pin with OE functionality. Settling time after FS change is guaranteed at ≤10 ms, with no glitch or phase discontinuity due to the DSPLL architecture.

Does the 541EAB000346BBG require external loop filtering or crystal load capacitors?

No. The 541EAB000346BBG integrates a complete 4th-generation DSPLL with on-chip digital loop filter, DCO, and phase detector - eliminating all external loop components. It uses a fixed-frequency crystal resonator (not user-selectable), and no load capacitors or tuning networks are required. This simplifies layout and improves reliability versus traditional XO designs.

What is the power supply noise rejection capability of the 541EAB000346BBG?

The 541EAB000346BBG achieves –83 dBc typical PSNR (power supply noise rejection) when subjected to 50 mVpp ripple at 100–1000 kHz, measured on a 156.25 MHz LVDS output. This is enabled by integrated on-die supply regulation and filtering, allowing direct connection to switched-mode power supplies without additional LDOs or ferrite beads in most applications.

Can the 541EAB000346BBG operate from 1.8 V, 2.5 V, and 3.3 V simultaneously?

No - the 541EAB000346BBG operates from a single VDD supply rail, but that rail may be 1.8 V, 2.5 V, or 3.3 V ±5%, selected at time of order. All output formats (LVPECL, LVDS, etc.) and internal circuitry are fully compatible with any of these voltages without hardware or firmware changes. The same 541EAB000346BBG part number supports all three supply options.