Skyworks Solutions Inc. SI5334C-B04717-GM

Overview

SI5334C-B04717-GM from Skyworks Solutions is a pin-controlled, quad-output any-frequency clock generator with four independently configurable differential clock outputs, 0.7 ps RMS typical phase jitter, 350 MHz maximum integer-output frequency (up to 710 MHz at select frequencies), and factory-programmed configuration for immediate operation on power-up. It serves as a high-precision timing source in PCIe 3.0, Ethernet switch/router, and FPGA clocking systems.

For engineers reviewing the SI5334C-B04717-GM datasheet, SI5334C-B04717-GM pinout, SI5334C-B04717-GM application, or SI5334C-B04717-GM equivalent, key selection considerations include its MultiSynth-based fractional-N synthesis architecture, independent output voltage per driver (1.5/1.8/2.5/3.3 V), 24-pin QFN package, and support for LVPECL/LVDS/HCSL/CMOS/SSTL/HSTL signal formats across all four outputs.

Technical Context

The SI5334C-B04717-GM implements a two-stage synthesis architecture: a primary PLL (phase detector, charge pump, loop filter, VCO) followed by four independent MultiSynth fractional-N dividers - one per output - enabling zero-ppm frequency accuracy and sub-20 ps phase step resolution. Each output path includes dedicated R-divider, M-divider, and P-divider control for fine-grained frequency and phase tuning.

It supports multiple reference inputs: 8–30 MHz crystal, 5–200 MHz CMOS, 5–350 MHz SSTL/HSTL, or 5–710 MHz differential clock. Output drivers are fully decoupled - each has independent VDDO supply (1.4–3.63 V), selectable format, and programmable initial phase offset (±45 ns) - enabling mixed-voltage, multi-standard timing distribution without external level-shifting.

Key Specifications

Pinout & Package

SI5334C-B04717-GM is housed in a 24-lead QFN package (4 mm × 4 mm, 0.5 mm pitch) with an exposed thermal pad. Pin assignments follow Skyworks' standard Si5334 top-view layout.

Key Features

Applications

Equivalent & Alternatives

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

Compared with Si5332B-D08717-GM and ICS8430I-01T, the SI5334C-B04717-GM uniquely balances pin-controlled flexibility, four independent outputs, PCIe-compliant SSC, and broad voltage/format support - making it optimal for complex, multi-standard timing architectures requiring field-adjustable operation without firmware overhead.

Availability

SI5334C-B04717-GM is available at Aetrix Electronics and suitable for PCIe 3.0 timing, Ethernet switch/router clocking, and FPGA/processor clock distribution requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.

Supply support for SI5334C-B04717-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 semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, timing, and precision analog ICs for infrastructure, automotive, and industrial markets.

The SI5334C-B04717-GM belongs to Skyworks' Si533x family of any-frequency clock generators, designed specifically for high-density, multi-protocol timing applications in networking, data center, and broadcast equipment where jitter, flexibility, and reliability are critical.

FAQ

What is the maximum output frequency supported by the SI5334C-B04717-GM?

The SI5334C-B04717-GM supports up to 350 MHz in integer synthesis mode across all four outputs. At select frequencies - specifically Fvco/4 and Fvco/6 - it can generate outputs up to 710 MHz. These higher frequencies require careful validation of VCO operating range and are limited to two unique frequencies simultaneously per device. The SI5334C-B04717-GM datasheet specifies these constraints in Tables 4 and 10.

Does the SI5334C-B04717-GM support spread spectrum clocking (SSC)?

Yes, the SI5334C-B04717-GM supports PCIe 2.0-compliant spread spectrum on any output clock running at exactly 100 MHz, with ±0.5% frequency deviation modulated at 30–33 kHz. This feature is enabled per-output via factory programming and does not require runtime control. The SI5334C-B04717-GM must be ordered with SSC enabled in its configuration; it is not pin-controllable post-deployment.

Can the SI5334C-B04717-GM operate with a single-ended input clock?

Yes, the SI5334C-B04717-GM accepts single-ended clock inputs on pins IN3 and IN4, supporting CMOS (5–200 MHz), SSTL (5–350 MHz), and HSTL (5–350 MHz) logic families. Input voltage thresholds are referenced to VDD (VIH = 0.7×VDD, VIL = 0.3×VDD), and slew rate should exceed 1 V/ns for optimal jitter performance. The SI5334C-B04717-GM does not require external termination for single-ended inputs.

What is the phase adjustment capability of the SI5334C-B04717-GM?

The SI5334C-B04717-GM provides pin-controlled phase adjustment on each differential output with <20 ps step resolution and ±45 ns total range. This feature operates across the 0.16–350 MHz frequency band and updates at up to 1.5 MHz. Phase offset is applied digitally within the MultiSynth divider path, ensuring deterministic, glitch-free transitions. The SI5334C-B04717-GM implements this via dedicated PINC/FDEC pins per output pair.

Is the SI5334C-B04717-GM pin-compatible with other Si5334 variants?

Yes, all Si5334 variants - including SI5334C-B04717-GM - share identical 24-pin QFN packaging, pinout, and footprint. Differences between variants (e.g., B04717 vs D08717) reflect factory-programmed configuration (output frequencies, formats, SSC enablement, phase offsets), not physical or electrical pin behavior. The SI5334C-B04717-GM maintains full mechanical and electrical compatibility with the broader Si5334 family.