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

Skyworks Solutions Inc. SI5338P-B04154-GM

Name: SI5338P-B04154-GM
Brand: Skyworks Solutions Inc.
SKU: SI5338P-B04154-GM
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI5338P-B04154-GM

Manufacturer:: Skyworks Solutions Inc.

Category:: Application Specific Clock/Timing

Package:: 24-VFQFN Exposed Pad

Datasheet:: SI5338P-B04154-GM.pdf

Description:: I2C CONTROL, 4-OUTPUT, ANY FREQU

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SI5338P-B04154-GM from Skyworks Solutions is an I²C-programmable quad clock generator with four independently configurable differential or single-ended outputs, 0.7 ps RMS typical phase jitter, PCIe Gen 1–4 Common Clock and Gen 3 SRNS compliance, and operation across –40 to +85 °C. It replaces up to four crystal oscillators in Ethernet switch/router, PCIe, and FPGA clocking systems.

For engineers reviewing the SI5338P-B04154-GM datasheet, SI5338P-B04154-GM pinout, SI5338P-B04154-GM application, or SI5338P-B04154-GM equivalent, key selection criteria include its MultiSynth™-based any-frequency synthesis (0.16–710 MHz), independent output voltage per driver (1.5/1.8/2.5/3.3 V), low-power 4×4 mm 24-QFN package, and I²C/SMBus programmability with ClockBuilder Pro support.

Technical Context

The SI5338P-B04154-GM implements a two-stage PLL architecture: a high-stability reference stage (with crystal or external clock input) feeding a fractional-N MultiSynth™ synthesis stage per output. Each of the four outputs supports independent frequency, format (LVPECL/LVDS/HCSL/CMOS/SSTL/HSTL), and voltage configuration.

It delivers true zero-ppm frequency accuracy via integer/fractional synthesis, supports glitchless 1-ppm frequency increment/decrement, <20 ps phase step resolution, and configurable spread-spectrum clocking (0.5–5.0% spread, 33–63 kHz modulation rate) on any output - all while maintaining PCIe Gen 4 jitter compliance (0.15–0.45 ps RMS).

Key Specifications

Parameter	Value and Actual Design Meaning
Phase Jitter (RMS)	0.7 ps typ (12 kHz–20 MHz); meets PCIe Gen 4 common clock jitter spec
Output Frequency Range	0.16–710 MHz per channel; supports LVPECL/LVDS/HCSL/CMOS/SSTL/HSTL formats
Input Reference Options	Crystal (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), differential (5–710 MHz)
Supply Voltages	Core: 1.8/2.5/3.3 V; Output buffers: independently configurable 1.5/1.8/2.5/3.3 V
Package	24-pin QFN, 4 × 4 mm, 0.5 mm pitch; RoHS-compliant, moisture-sensitive level 3
Operating Temperature	–40 to +85 °C; qualified for industrial and telecom line card environments
Power Consumption	45 mA typ core current at 100 MHz on all outputs; <30 mA per LVPECL output at 710 MHz

Pinout & Package

SI5338P-B04154-GM uses a 24-pin QFN package (4 mm × 4 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are validated per Skyworks Rev. 1.6 datasheet Figure 1 (Pin Assignments) and Section 7 (Pin Descriptions).

Pin/Terminal	Circuit Role	Design Meaning
IN1/IN2, IN5/IN6	Differential clock inputs	Accept 5–710 MHz AC-coupled differential references; require external 100 Ω termination
IN3/IN4	Single-ended clock inputs	Support 5–200 MHz CMOS, 5–350 MHz SSTL/HSTL; DC-coupled with internal bias
CLK0A/CLK0B – CLK3A/CLK3B	Differential output pairs	Four independent output drivers; each configurable for LVPECL/LVDS/HCSL/CML with selectable VDDO
VDDO0–VDDO3	Output buffer supply pins	Enable per-output voltage setting (1.5/1.8/2.5/3.3 V); decoupling required per output domain
SCL/SDA	I²C interface	Standard SMBus-compatible serial programming interface; supports ClockBuilder Pro configuration
INTR	Interrupt output	Open-drain status pin indicating loss-of-lock or loss-of-signal events

Key Features

Feature	Design Value
MultiSynth™ synthesis	Enables independent, any-frequency generation (0.16–710 MHz) on all four outputs with zero ppm error
PCIe Gen 4 compliance	Meets 0.15–0.45 ps RMS jitter requirement under common clock architecture with 2–5 MHz PLL bandwidth
Independent phase adjustment	±45 ns range with <20 ps step resolution per output - enables precise skew management in multi-lane interfaces
Configurable spread spectrum	Programmable 0.5–5.0% down-spread at 33–63 kHz on any output to reduce EMI without affecting timing margins
Glitchless frequency tuning	1 ppm-step increment/decrement via pin control or I²C; update time as fast as 667 ns for >18 MHz outputs

Applications

Ethernet Switch/Routing	PCIe Gen 1–4 Timing
Use Scenario: High-density 1/10 GbE switch fabric requiring synchronized clocks across multiple PHYs and MACs. IC Role / Device Role / Timing Role: Quad-output clock generator providing independent 125 MHz, 156.25 MHz, and 250 MHz clocks to SerDes lanes and packet processors. Use Value: Eliminates four discrete oscillators; reduces board area and BOM count while maintaining sub-1 ps RMS jitter across all outputs.	Use Scenario: Server motherboard with CPU, GPU, and NVMe controllers sharing PCIe Gen 4 links. IC Role / Device Role / Timing Role: Common clock source delivering 100 MHz HCSL to all PCIe root complexes and endpoints. Use Value: Meets PCIe Gen 4 SRNS jitter spec (0.11–0.32 ps RMS) and supports simultaneous clocking of up to four PCIe domains.
FPGA & Processor Clocking	Broadcast Video/Audio Timing
Use Scenario: Adaptive computing platform using Xilinx Versal or Intel Agilex FPGA with multiple clock domains. IC Role / Device Role / Timing Role: Configurable clock source generating 100 MHz system clock, 200 MHz DDR interface clock, 300 MHz transceiver reference, and 500 MHz video processing clock. Use Value: Single-chip solution eliminates clock tree complexity; independent voltage per output matches diverse I/O standards (HSTL, LVDS, LVCMOS).	Use Scenario: SMPTE ST 2110 IP media gateway synchronizing video, audio, and ancillary data streams. IC Role / Device Role / Timing Role: Precision timing engine delivering 27 MHz, 74.25 MHz, and 148.5 MHz SMPTE-compliant clocks with <10 ps cycle-cycle jitter. Use Value: Supports frame-accurate synchronization across IP-based broadcast infrastructure without external jitter cleaners.

Ethernet Switch/Routing

PCIe Gen 1–4 Timing

Use Scenario: High-density 1/10 GbE switch fabric requiring synchronized clocks across multiple PHYs and MACs.

IC Role / Device Role / Timing Role: Quad-output clock generator providing independent 125 MHz, 156.25 MHz, and 250 MHz clocks to SerDes lanes and packet processors.

Use Value: Eliminates four discrete oscillators; reduces board area and BOM count while maintaining sub-1 ps RMS jitter across all outputs.

Use Scenario: Server motherboard with CPU, GPU, and NVMe controllers sharing PCIe Gen 4 links.

IC Role / Device Role / Timing Role: Common clock source delivering 100 MHz HCSL to all PCIe root complexes and endpoints.

Use Value: Meets PCIe Gen 4 SRNS jitter spec (0.11–0.32 ps RMS) and supports simultaneous clocking of up to four PCIe domains.

FPGA & Processor Clocking

Broadcast Video/Audio Timing

Use Scenario: Adaptive computing platform using Xilinx Versal or Intel Agilex FPGA with multiple clock domains.

IC Role / Device Role / Timing Role: Configurable clock source generating 100 MHz system clock, 200 MHz DDR interface clock, 300 MHz transceiver reference, and 500 MHz video processing clock.

Use Value: Single-chip solution eliminates clock tree complexity; independent voltage per output matches diverse I/O standards (HSTL, LVDS, LVCMOS).

Use Scenario: SMPTE ST 2110 IP media gateway synchronizing video, audio, and ancillary data streams.

IC Role / Device Role / Timing Role: Precision timing engine delivering 27 MHz, 74.25 MHz, and 148.5 MHz SMPTE-compliant clocks with <10 ps cycle-cycle jitter.

Use Value: Supports frame-accurate synchronization across IP-based broadcast infrastructure without external jitter cleaners.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Si5332A-D06154-GM	Higher integration: includes integrated crystal, lower jitter (0.35 ps RMS), supports up to 12 outputs	Targeted at space-constrained, ultra-low-jitter applications (e.g., 5G baseband, optical transport)	Choose when crystal integration and sub-0.4 ps jitter are mandatory; requires different layout and ClockBuilder Pro configuration
ICS853S02IAGLF	Fixed-frequency, non-programmable quad LVDS clock buffer; no synthesis capability; 1.2 ps RMS jitter	Used only in fixed-clock distribution scenarios where frequency flexibility is unnecessary	Choose only for cost-sensitive, static-clock designs; lacks I²C programmability and any-frequency synthesis

Compared with Si5332A-D06154-GM and ICS853S02IAGLF, the SI5338P-B04154-GM uniquely balances field-programmability, PCIe Gen 4 compliance, and industrial temperature operation in a compact 4×4 mm footprint - making it optimal for reconfigurable embedded systems where design flexibility and supply chain stability are critical.

Availability

SI5338P-B04154-GM is available at Aetrix Electronics and suitable for Ethernet switch/router, PCIe Gen 1–4 timing, and FPGA clocking applications requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.

Supply support for SI5338P-B04154-GM 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 connectivity solutions for communications, automotive, and industrial markets.

The SI5338 family is designed for high-performance, programmable clock generation in datacenter, networking, and broadcast infrastructure - emphasizing low jitter, multi-format output flexibility, and robust I²C configurability.

FAQ

What is the primary function of the SI5338P-B04154-GM in a system design?

The SI5338P-B04154-GM serves as an I²C-programmable quad clock generator that synthesizes up to four independent, any-frequency output clocks (0.16–710 MHz) with 0.7 ps RMS typical phase jitter. In system design, the SI5338P-B04154-GM replaces multiple discrete oscillators, provides PCIe Gen 4–compliant timing, and enables flexible clock tree architecture for FPGAs, processors, and high-speed SerDes interfaces.

Does the SI5338P-B04154-GM support PCIe Gen 4 timing requirements?

Yes, the SI5338P-B04154-GM meets PCIe Gen 4 common clock jitter specifications (0.15–0.45 ps RMS) when configured with a 2–5 MHz PLL bandwidth and 100 MHz HCSL outputs. It is explicitly listed in Skyworks documentation as PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant, and its jitter performance has been validated using the Skyworks PCIe Clock Jitter Tool and Intel Clock Jitter Tool v1.6.4.

Can the SI5338P-B04154-GM generate different output voltages on each channel?

Yes, the SI5338P-B04154-GM supports independent output buffer supply voltages per channel via dedicated VDDO0–VDDO3 pins. Each output driver can be set to 1.5 V, 1.8 V, 2.5 V, or 3.3 V - enabling direct interfacing with mixed-voltage I/O standards such as LVDS (1.8 V), HSTL (1.5 V), and CMOS (3.3 V) without external level shifters.

How is the SI5338P-B04154-GM programmed and configured?

The SI5338P-B04154-GM is programmed via its I²C/SMBus-compatible serial interface using Skyworks' ClockBuilder Pro software. This GUI tool enables full register configuration, frequency synthesis setup, output format selection, spread-spectrum parameters, and phase/frequency tuning - then generates custom configuration files for one-time OTP programming or runtime I²C writes.

What package type and thermal characteristics does the SI5338P-B04154-GM have?

The SI5338P-B04154-GM uses a 24-pin QFN package measuring 4 mm × 4 mm with 0.5 mm pitch and an exposed thermal pad. Its thermal resistance is θJA = 37 °C/W (still air) and θJC = 10 °C/W, supporting reliable operation from –40 to +85 °C. The package is RoHS-compliant and rated MSL3 per JEDEC J-STD-020.

SI5338P-B04154-GM Specifications

Product attributes: Attribute value

Manufacturer:: Skyworks Solutions Inc.

Series:: MultiSynth™

Package/Case:: 24-VFQFN Exposed Pad

Packaging:: Tray

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)

SI5338P-B04154-GM FAQ

1.How can I place an order for SI5338P-B04154-GM through Aetrix?

Please submit a Request for Quotation (RFQ) for SI5338P-B04154-GM 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 SI5338P-B04154-GM reliable?

The price and inventory of SI5338P-B04154-GM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI5338P-B04154-GM is usually 5 days.

3.What payment methods are accepted for SI5338P-B04154-GM?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI5338P-B04154-GM transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI5338P-B04154-GM?

SI5338P-B04154-GM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI5338P-B04154-GM 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 SI5338P-B04154-GM?

For technical support, including SI5338P-B04154-GM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI5338P-B04154-GM requirements.

6.How does Aetrix verify that SI5338P-B04154-GM is sourced from the original manufacturer or authorized distributors?

All SI5338P-B04154-GM 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 SI5338P-B04154-GM meets industry standards.

7.What is the process for return or replacement of SI5338P-B04154-GM?

All SI5338P-B04154-GM units undergo pre-shipment inspection (PSI). If there is an issue with SI5338P-B04154-GM, 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 SI5338P-B04154-GM part is unused and in its original packaging.

Return procedure for SI5338P-B04154-GM:

1.Submit a request within 90 days.

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

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