Skyworks Solutions Inc. SI5338N-B06022-GMR

Overview

SI5338N-B06022-GMR from Skyworks Solutions is a quad-output, I²C-programmable clock generator with MultiSynth™ frequency synthesis. It delivers four independent, any-frequency outputs (0.16–710 MHz), supports LVPECL/LVDS/HCSL/CMOS/SSTL/HSTL formats, achieves 0.7 ps RMS phase jitter, and operates from 1.8/2.5/3.3 V core supply in PCIe Gen 4–compliant timing systems.

For engineers reviewing the SI5338N-B06022-GMR datasheet, SI5338N-B06022-GMR pinout, SI5338N-B06022-GMR application, or SI5338N-B06022-GMR equivalent, this device enables precise multi-clock domain synchronization in high-speed serial interfaces, FPGA/processor clocking, and broadcast video timing where zero-ppm accuracy and sub-picosecond jitter are critical.

Technical Context

The SI5338N-B06022-GMR integrates a dual-stage PLL architecture: a reference-stage PLL locks to one of six input sources (crystal, CMOS, SSTL, or differential), followed by four independent MultiSynth™ fractional-N synthesizers per output. Each synthesizer supports integer/fractional mode operation with programmable R, M, N, P dividers and real-time frequency/phase adjustment via I²C or dedicated pins.

It features loss-of-signal and loss-of-lock detection, independent output voltage control (1.5/1.8/2.5/3.3 V), spread-spectrum modulation (0.5–5.0% at 33–63 kHz), and external feedback for zero-delay mode. The device operates across –40 to +85 °C and meets PCIe Gen 1–4 Common Clock and Gen 3 SRNS jitter requirements.

Key Specifications

Pinout & Package

SI5338N-B06022-GMR uses a 24-pin QFN package (4 × 4 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments are fixed per Skyworks Si5338 family specification.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SI5338N-B06022-GMR, the Si5338A-B06022-GM offers identical performance in a factory-configured form, while the LMK04832RHAT adds JESD204B-specific features at the cost of higher power, larger footprint, and reduced input flexibility - making SI5338N-B06022-GMR optimal for general-purpose multi-frequency clock generation with field programmability.

Availability

SI5338N-B06022-GMR is available at Aetrix Electronics and suitable for Ethernet switching, PCIe Gen 4 infrastructure, and broadcast video timing requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for SI5338N-B06022-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 semiconductor company specializing in analog and mixed-signal connectivity solutions for wireless, broadband, automotive, and industrial markets.

The Si5338 product line delivers programmable, low-jitter clock generation for high-speed serial interfaces, FPGA/ASIC clock trees, and multi-protocol timing systems where flexibility, precision, and space efficiency are essential.

FAQ

What is the primary function of the SI5338N-B06022-GMR?

The SI5338N-B06022-GMR is an I²C-programmable quad clock generator using Skyworks' MultiSynth™ technology to synthesize four independent, any-frequency output clocks (0.16–710 MHz) with 0.7 ps RMS phase jitter. It replaces multiple discrete oscillators in systems requiring precise, configurable timing - such as PCIe Gen 4, 10 GbE, and broadcast video equipment - and is delivered in a 4 × 4 mm 24-QFN package.

Does the SI5338N-B06022-GMR support PCIe Gen 4 timing requirements?

Yes, the SI5338N-B06022-GMR meets PCIe Gen 4 common clock specifications with 0.15–0.45 ps RMS jitter (10 kHz–50 MHz) and total jitter <33.6 ps pk-pk. It is validated per PCI-SIG Base Specification 4.0 rev 0.5 and supports both common clock and Gen 3 SRNS modes. Skyworks provides the PCIe Clock Jitter Tool for in-system validation of SI5338N-B06022-GMR performance.

Can the SI5338N-B06022-GMR generate different output voltages simultaneously?

Yes, the SI5338N-B06022-GMR supports independent output buffer supply voltages (VDDO0–VDDO3) ranging from 1.4 V to 3.63 V. This allows simultaneous generation of LVDS (2.5 V), HCSL (1.8 V), and CMOS (3.3 V) outputs from a single device - enabling mixed-voltage clock domains without level-shifting components in FPGA, processor, and memory subsystems.

How is the SI5338N-B06022-GMR configured and programmed?

The SI5338N-B06022-GMR is configured via its I²C/SMBus-compatible interface (SCL/SDA pins) using Skyworks' ClockBuilder Pro software. This GUI tool generates custom configuration files, validates timing constraints, and writes settings directly to the device's on-chip NVM. Factory programming and field updates are both supported, and pin-controlled frequency/phase adjustments (PINC/FDEC) are available for real-time tuning without I²C traffic.

What input reference sources does the SI5338N-B06022-GMR accept?

The SI5338N-B06022-GMR accepts six input reference types: 8–30 MHz crystal (on-chip load capacitance), 5–200 MHz CMOS, 5–350 MHz SSTL/HSTL, and 5–710 MHz differential (IN1/IN2 or IN5/IN6). All inputs support loss-of-signal detection, and the device can operate in PLL mode or bypass mode (buffer-only) with propagation delay <4 ns. No external PLL components are required.