Skyworks Solutions Inc. SI5334C-B04813-GM

Overview

SI5334C-B04813-GM from Skyworks Solutions is a pin-controlled, quad-output any-frequency clock generator with four independently configurable differential clock outputs. It synthesizes frequencies from 0.16 MHz to 710 MHz per output using MultiSynth fractional-N synthesis, 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 and output supplies. It is deployed in PCIe 3.0 timing, FPGA clocking, and broadcast video systems.

For engineers reviewing the SI5334C-B04813-GM datasheet, SI5334C-B04813-GM pinout, SI5334C-B04813-GM application, or SI5334C-B04813-GM equivalent, key selection criteria include its 4× independent differential outputs, factory-programmed configuration, zero-ppm frequency accuracy, <20 ps phase step resolution, and support for 710 MHz differential output - all in a space-constrained 4×4 mm 24-QFN package.

Technical Context

The SI5334C-B04813-GM integrates a fully on-chip fractional-N PLL (phase detector, charge pump, loop filter, VCO, and R/N dividers) plus four independent MultiSynth output synthesis stages. Each MultiSynth supports integer or fractional division to generate any output frequency up to 350 MHz (Fvco/8), with select outputs reaching 710 MHz via higher-order VCO harmonics.

Input flexibility includes crystal (8–30 MHz), single-ended CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), or differential (5–710 MHz). Output drivers are individually configurable for signal format, output voltage (1.5/1.8/2.5/3.3 V), and termination, enabling mixed-voltage system clock distribution without level-shifting.

Key Specifications

Pinout & Package

SI5334C-B04813-GM is housed in a 24-lead, 4 mm × 4 mm, 0.5 mm pitch QFN package with exposed thermal pad. Pin assignments follow the standard Si5334 top-view layout.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SI5334C-B04813-GM, the Si5332A offers greater flexibility and lower jitter but demands firmware integration, while the ICS8430I sacrifices synthesis capability for lower unit cost and simpler validation - making SI5334C-B04813-GM optimal for field-programmable, multi-standard timing where pin control and zero-ppm accuracy are critical.

Availability

SI5334C-B04813-GM is available at Aetrix Electronics and suitable for PCIe 3.0 timing, FPGA clock distribution, and broadcast video applications requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.

Supply support for SI5334C-B04813-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 semiconductors, specializing in RF, timing, and precision analog components for communications, automotive, and industrial markets.

The Si5334 family is designed for high-performance, multi-protocol clock generation in space-constrained systems - delivering any-frequency synthesis, ultra-low jitter, and flexible I/O to replace multiple discrete timing elements.

FAQ

What is the maximum differential output frequency supported by the SI5334C-B04813-GM?

The SI5334C-B04813-GM supports differential output frequencies up to 710 MHz for LVPECL and LVDS formats when operating in higher-order VCO harmonic modes. For all other formats (HCSL, SSTL, HSTL), the maximum is 350 MHz. This capability is confirmed in Table 4 of the datasheet under "Output Clocks (Differential)" and applies specifically to the SI5334C-B04813-GM variant.

Does the SI5334C-B04813-GM require an external I²C interface for configuration?

No, the SI5334C-B04813-GM is pin-controlled and factory-programmed with non-volatile memory (OTP). It powers up and begins operation immediately in its predefined configuration without I²C, SPI, or software initialization. This eliminates firmware dependencies and simplifies system boot timing - a defining feature of the SI5334C-B04813-GM.

Can the SI5334C-B04813-GM generate different output formats simultaneously?

Yes, the SI5334C-B04813-GM supports simultaneous mixed-format outputs: for example, CLK0A/B as LVDS, CLK1A/B as HCSL, CLK2A/B as CMOS, and CLK3A/B as SSTL - each with independent VDDOx supply voltages. This is enabled by its four independent output drivers and is explicitly documented in the "Highly-configurable output drivers" feature list and functional description section.

What is the phase adjustment resolution and range for the SI5334C-B04813-GM?

The SI5334C-B04813-GM provides phase adjustment with <20 ps step resolution over a ±45 ns range on each differential output. This capability is pin-controlled and operates across the 0.16–350 MHz frequency band. The specification is verified in Table 3 ("Performance Characteristics") under "Phase Increment/Decrement Accuracy" and "Programmable Initial Phase Offset".

Is spread spectrum clocking (SSC) supported on all outputs of the SI5334C-B04813-GM?

Spread spectrum clocking is supported on any SI5334C-B04813-GM output clock running at exactly 100 MHz and configured with Rn divider = 1. It delivers ±0.5% frequency deviation at 30–33 kHz, compliant with PCI Express 2.0 specifications. SSC is not available on non-100 MHz outputs or those using Rn ≠ 1, as stated in Note 4 of Table 3 and Section 2.10.