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Home > Products > Integrated Circuits (ICs) > Clock/Timing > Application Specific Clock/Timing

Skyworks Solutions Inc. SI5334M-B04511-GMR

Name: SI5334M-B04511-GMR
Brand: Skyworks Solutions Inc.
SKU: SI5334M-B04511-GMR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI5334M-B04511-GMR

Manufacturer:: Skyworks Solutions Inc.

Category:: Application Specific Clock/Timing

Package:: 24-VFQFN Exposed Pad

Datasheet:: SI5334M-B04511-GMR.pdf

Description:: 4-OUTPUT, ANY FREQUENCY(<200MHZ)

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SI5334M-B04511-GMR from Skyworks Solutions is a pin-controlled, any-frequency quad clock generator with four independently configurable differential outputs. It synthesizes frequencies from 0.16 MHz to 710 MHz per output using MultiSynth fractional-N PLL technology, delivers 0.7 ps RMS typical phase jitter, supports LVPECL/LVDS/HCSL/CMOS/SSTL/HSTL formats, and operates from 1.8/2.5/3.3 V core supply - deployed in PCIe 3.0 timing, 10GbE switch clocking, and FPGA reference distribution.

For engineers reviewing the SI5334M-B04511-GMR datasheet, SI5334M-B04511-GMR pinout, SI5334M-B04511-GMR application, or SI5334M-B04511-GMR equivalent, key selection criteria include its 4-output independent synthesis capability, sub-1 ps RMS jitter performance at 125 MHz, 24-QFN 4×4 mm package, factory-programmed configuration, and support for zero-delay mode via external feedback.

Technical Context

The SI5334M-B04511-GMR integrates a fully on-chip fractional-N PLL with phase detector, charge pump, loop filter, VCO, and R/N/M dividers, enabling integer or fractional frequency synthesis per output. Its dual-stage synthesis architecture separates input conditioning (R-divider) from output generation (MultiSynth M-divider), allowing independent output frequency, format, and voltage control without shared path constraints.

Each of the four differential output drivers features dedicated VDDOx supply (1.5/1.8/2.5/3.3 V), programmable initial phase offset (±45 ns), 20 ps phase step resolution, and glitchless 1 ppm frequency increment/decrement on CLK0A/B. Input flexibility includes crystal (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), or differential (5–710 MHz) references.

Key Specifications

Parameter	Value and Actual Design Meaning
Output count & type	4 independent differential clock outputs (CLK0A/B through CLK3A/B), each configurable as LVPECL, LVDS, HCSL, CMOS, SSTL, or HSTL
Frequency range per output	0.16–350 MHz (all formats); up to 710 MHz for LVPECL/LVDS with specific MultiSynth constraints
Phase jitter (RMS)	0.7 ps typical (12 kHz–20 MHz), measured at 125 MHz output with 25 MHz crystal input
Core supply voltage	1.8 V (±10%), 2.5 V (±10%), or 3.3 V (±10%) - selectable per design; enables mixed-voltage system integration
Package	24-pin QFN, 4 mm × 4 mm, 0.5 mm pitch, exposed thermal pad - optimized for high-density PCB layouts
Operating temperature	–40 °C to +85 °C ambient - qualified for industrial and telecom line card environments
Power consumption	45 mA typical core current at 100 MHz on all outputs and 25 MHz reference clock

Pinout & Package

The SI5334M-B04511-GMR is housed in a 24-lead QFN package (4 mm × 4 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments are fixed and validated per Skyworks Rev. 1.3 datasheet Figure 2 (Transparent Top View).

Pin/Terminal	Circuit Role	Design Meaning
IN1 / IN2	Differential reference input (P/N)	Accepts AC-coupled differential clock (5–710 MHz) or crystal; internal 10 kΩ termination
IN3 / IN4	Single-ended reference input (P/N)	Supports CMOS/SSTL/HSTL inputs (5–350 MHz); VIH = 0.7×VDD, VIL = 0.3×VDD
IN5 / IN6	Secondary differential reference input (P/N)	Redundant or alternate differential reference path; identical specs to IN1/IN2
CLK0A / CLK0B	Differential output 0 (P/N)	Factory-configured clock output; supports all formats; enables frequency inc/dec via PINC/FINC
CLK1A / CLK1B	Differential output 1 (P/N)	Independent output with programmable phase offset (±45 ns), format, and VDDO1 supply
CLK2A / CLK2B	Differential output 2 (P/N)	Configurable driver; supports spread spectrum when set to 100 MHz and Rn=1
CLK3A / CLK3B	Differential output 3 (P/N)	Full-format flexibility; no frequency inc/dec; phase adjustment supported
VDD	Core supply	1.8/2.5/3.3 V core power; decoupling required per layout guidelines
VDDO0–VDDO3	Output buffer supplies	Independent 1.5/1.8/2.5/3.3 V per output - enables mixed-signal interface voltage matching
LOSLOL	Loss-of-signal/loss-of-lock alarm	Open-drain active-low output; asserts within 5 µs of input loss or PLL unlock
OEB	Output enable bar	Active-low global output disable; places all outputs in high-Z state
RSVD_GND	Reserved ground	Must be connected to PCB ground plane; improves thermal and EMI performance

Key Features

Feature	Design Value
MultiSynth fractional-N synthesis	Enables independent, zero-ppm-error frequency generation on all four outputs - eliminates need for multiple discrete oscillators
Per-output voltage control (VDDOx)	Allows direct interfacing with mixed-voltage FPGAs, ASICs, and SerDes without level shifters
Glitchless 1 ppm frequency increment/decrement	Supports real-time clock margining and dynamic frequency tuning on CLK0A/B without system reset
20 ps phase step resolution	Enables precise skew alignment across multi-lane interfaces (e.g., DDR memory, PCIe lanes)
PCIe 2.0-compliant spread spectrum	Reduces EMI on any 100 MHz output with Rn divider = 1 - meets regulatory requirements without external components

Applications

Ethernet Switch Timing	PCIe 3.0 Reference Clocking
Use Scenario: High-port-count 10GbE/25GbE switches requiring synchronized clocks across multiple PHYs and packet processors. IC Role / Device Role / Timing Role: Quad-output clock generator providing independent 156.25 MHz (XAUI), 125 MHz (XFI), 100 MHz (PCIe), and 25 MHz (management) clocks with <1 ps RMS jitter. Use Value: Eliminates inter-clock skew and reduces bit error rate by delivering sub-1 ps RMS jitter across all outputs under simultaneous load.	Use Scenario: Server motherboard with dual CPU sockets and multiple PCIe 3.0 x16 slots requiring low-jitter, spread-spectrum-capable reference clocks. IC Role / Device Role / Timing Role: Generates four independent 100 MHz PCIe reference clocks, each with programmable SSC and phase alignment. Use Value: Meets PCIe 3.0 common-clock jitter spec (≤0.45 ps RMS) while enabling EMI reduction via hardware-controlled SSC on each lane group.
FPGA/ASIC Clock Distribution	Broadcast Video Synchronization
Use Scenario: High-end FPGA-based video processing platform needing multiple domain clocks (e.g., 27 MHz pixel clock, 148.5 MHz TMDS, 100 MHz logic, 50 MHz test). IC Role / Device Role / Timing Role: Any-frequency clock generator synthesizing exact video-standard frequencies with zero ppm error and independent voltage control per domain. Use Value: Avoids external frequency translators and ensures frame-accurate sync across HDMI, SDI, and internal logic domains.	Use Scenario: SMPTE ST 2059-2 compliant broadcast infrastructure requiring traceable, low-jitter 10 MHz and 1 PPS timing references. IC Role / Device Role / Timing Role: Receives GPS-disciplined 10 MHz reference and generates synchronized 10 MHz, 1 PPS, 27 MHz, and 74.25 MHz outputs for camera, router, and recorder subsystems. Use Value: Maintains <±5 ns phase alignment across all outputs over temperature, meeting ST 2059-2 Class A stability requirements.

Ethernet Switch Timing

PCIe 3.0 Reference Clocking

Use Scenario: High-port-count 10GbE/25GbE switches requiring synchronized clocks across multiple PHYs and packet processors.

IC Role / Device Role / Timing Role: Quad-output clock generator providing independent 156.25 MHz (XAUI), 125 MHz (XFI), 100 MHz (PCIe), and 25 MHz (management) clocks with <1 ps RMS jitter.

Use Value: Eliminates inter-clock skew and reduces bit error rate by delivering sub-1 ps RMS jitter across all outputs under simultaneous load.

Use Scenario: Server motherboard with dual CPU sockets and multiple PCIe 3.0 x16 slots requiring low-jitter, spread-spectrum-capable reference clocks.

IC Role / Device Role / Timing Role: Generates four independent 100 MHz PCIe reference clocks, each with programmable SSC and phase alignment.

Use Value: Meets PCIe 3.0 common-clock jitter spec (≤0.45 ps RMS) while enabling EMI reduction via hardware-controlled SSC on each lane group.

FPGA/ASIC Clock Distribution

Broadcast Video Synchronization

Use Scenario: High-end FPGA-based video processing platform needing multiple domain clocks (e.g., 27 MHz pixel clock, 148.5 MHz TMDS, 100 MHz logic, 50 MHz test).

IC Role / Device Role / Timing Role: Any-frequency clock generator synthesizing exact video-standard frequencies with zero ppm error and independent voltage control per domain.

Use Value: Avoids external frequency translators and ensures frame-accurate sync across HDMI, SDI, and internal logic domains.

Use Scenario: SMPTE ST 2059-2 compliant broadcast infrastructure requiring traceable, low-jitter 10 MHz and 1 PPS timing references.

IC Role / Device Role / Timing Role: Receives GPS-disciplined 10 MHz reference and generates synchronized 10 MHz, 1 PPS, 27 MHz, and 74.25 MHz outputs for camera, router, and recorder subsystems.

Use Value: Maintains <±5 ns phase alignment across all outputs over temperature, meeting ST 2059-2 Class A stability requirements.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad-output clock generator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Si5332A-D08511-GM	Higher integration: includes integrated crystal, smaller 3×3 mm package, supports up to 10 outputs via I²C programmability	Requires firmware initialization; not pin-compatible; better suited for space-constrained, software-configurable systems	Select when board space is critical and I²C control is acceptable; avoid if pin-control-only operation is mandatory
ICS853S02AMT	Fixed-frequency, non-synthesizing quad LVDS generator; max 250 MHz; no phase/frequency tuning; 3.3 V only	Limited to pre-defined frequencies; no spread spectrum or phase adjustment; lower jitter (0.4 ps RMS) but no flexibility	Select only for cost-sensitive, static-frequency applications where synthesis flexibility is unnecessary

Compared with Si5332A-D08511-GM and ICS853S02AMT, the SI5334M-B04511-GMR uniquely balances pin-controlled simplicity, full any-frequency synthesis on all four outputs, and hardware-based phase/frequency tuning - making it optimal for industrial and telecom designs requiring field-programmable timing without microcontroller dependency.

Availability

SI5334M-B04511-GMR is available at Aetrix Electronics and suitable for Ethernet switch/router timing, PCIe 3.0 reference clocking, and FPGA/ASIC clock distribution requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.

Supply support for SI5334M-B04511-GMR 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 leader in analog and mixed-signal semiconductors, specializing in RF, timing, and precision analog solutions for communications, automotive, and industrial markets.

The SI5334M-B04511-GMR belongs to Skyworks' Si533x family of pin-controlled, any-frequency clock generators - designed specifically for high-reliability, low-jitter timing in networking, data center, and broadcast infrastructure where software-free configuration and deterministic behavior are critical.

FAQ

What is the maximum output frequency supported by the SI5334M-B04511-GMR?

The SI5334M-B04511-GMR supports up to 710 MHz on LVPECL and LVDS outputs when operating in specific MultiSynth fractional modes above Fvco/8, though 350 MHz is guaranteed for all formats including HCSL and CMOS. The datasheet specifies 0.16–350 MHz as the general-purpose range, with higher frequencies subject to VCO division constraints and layout-dependent signal integrity. SI5334M-B04511-GMR achieves this via patented MultiSynth architecture with independent M-divider per output.

Does the SI5334M-B04511-GMR require an external configuration EEPROM or I²C interface?

No, the SI5334M-B04511-GMR does not require external memory or I²C communication. It uses one-time-programmable (OTP) NVM internally programmed at the factory. Upon power-up, SI5334M-B04511-GMR begins operation immediately in its predefined configuration - enabling true "power-on-and-go" timing without host processor involvement or boot-time delays.

Can the SI5334M-B04511-GMR generate different output formats simultaneously?

Yes, the SI5334M-B04511-GMR supports mixed output formats across its four differential pairs: for example, CLK0A/B as LVDS, CLK1A/B as HCSL, CLK2A/B as LVPECL, and CLK3A/B as CMOS - each with independent VDDOx supply voltage (1.5/1.8/2.5/3.3 V). This eliminates level-shifter components and simplifies interface to heterogeneous devices like FPGAs, PHYs, and memory controllers in a single SI5334M-B04511-GMR solution.

What is the purpose of the LOSLOL pin on the SI5334M-B04511-GMR?

The LOSLOL pin on the SI5334M-B04511-GMR is an open-drain, active-low alarm output that asserts within 5 µs of either loss-of-signal (on any input clock) or loss-of-lock (PLL unlock condition). It provides hardware-level fault detection for system monitoring circuits or watchdog timers, enabling rapid failover or diagnostic response without software polling. SI5334M-B04511-GMR drives LOSLOL low during these events and releases it upon recovery - supporting robust timing system reliability.

Is spread spectrum clocking (SSC) supported on all outputs of the SI5334M-B04511-GMR?

Spread spectrum clocking on the SI5334M-B04511-GMR is supported only on outputs configured to 100 MHz with their Rn divider set to 1 - and only in variants designated with 'K', 'L', or 'M' suffixes (SI5334M-B04511-GMR qualifies). SSC complies with PCI Express 2.0 specifications (±0.5% deviation at 30–33 kHz modulation rate) and can be enabled independently per qualifying output, reducing EMI without affecting other outputs' stability or jitter performance.

SI5334M-B04511-GMR Specifications

Product attributes: Attribute value

Manufacturer:: Skyworks Solutions Inc.

Series:: -

Package/Case:: 24-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

PLL:: -

Main Purpose:: -

Input:: -

Output:: -

Number of Circuits:: -

Ratio - Input:Output:: -

Differential - Input:Output:: -

Frequency - Max:: -

Voltage - Supply:: -

Operating Temperature:: -

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 24-QFN (4x4)

SI5334M-B04511-GMR FAQ

1.How can I place an order for SI5334M-B04511-GMR through Aetrix?

Please submit a Request for Quotation (RFQ) for SI5334M-B04511-GMR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SI5334M-B04511-GMR reliable?

The price and inventory of SI5334M-B04511-GMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI5334M-B04511-GMR is usually 5 days.

3.What payment methods are accepted for SI5334M-B04511-GMR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI5334M-B04511-GMR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI5334M-B04511-GMR?

SI5334M-B04511-GMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI5334M-B04511-GMR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SI5334M-B04511-GMR?

For technical support, including SI5334M-B04511-GMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI5334M-B04511-GMR requirements.

6.How does Aetrix verify that SI5334M-B04511-GMR is sourced from the original manufacturer or authorized distributors?

All SI5334M-B04511-GMR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SI5334M-B04511-GMR meets industry standards.

7.What is the process for return or replacement of SI5334M-B04511-GMR?

All SI5334M-B04511-GMR units undergo pre-shipment inspection (PSI). If there is an issue with SI5334M-B04511-GMR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SI5334M-B04511-GMR part is unused and in its original packaging.

Return procedure for SI5334M-B04511-GMR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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