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Skyworks Solutions Inc. SI5332CC09284-GM1R
- Part No.:
- SI5332CC09284-GM1R
- Manufacturer:
- Skyworks Solutions Inc.
- Package:
- -
- Datasheet:
-
SI5332CC09284-GM1R.pdf
- Description:
- IC CLOCK GENERATOR QFN
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Product details
Overview
SI5332CC09284-GM1R from Silicon Labs is a 6-output, any-frequency programmable clock generator in a 32-pin QFN package, supporting differential outputs up to 333.33 MHz with 190 fs RMS phase jitter (external crystal), integer/fractional synthesis, and user-configurable LVDS/LVPECL/HCSL/LVCMOS signal formats per output. It serves as a single-chip clock tree solution in Ethernet switches and storage controllers.
For engineers reviewing the SI5332CC09284-GM1R datasheet, SI5332CC09284-GM1R pinout, SI5332CC09284-GM1R application, or SI5332CC09284-GM1R equivalent, key selection criteria include its 6-output 32-QFN footprint, external crystal input support (16–50 MHz), multi-bank VDDO flexibility (1.8/2.5/3.3 V), I²C programmability, and PCIe Gen1–4/SRIS compliance.
Technical Context
The SI5332CC09284-GM1R implements a two-stage synthesis architecture: a wideband PLL locks to an external 16–50 MHz crystal, then feeds up to three independent MultiSynth fractional dividers and five integer dividers. Its cross-point mux routes any synthesized or reference frequency to any of six differential outputs.
Each output supports independent format selection (LVDS, LVPECL, HCSL, LVCMOS), configurable skew (±122.5 ps in 35 ps steps), and synchronous enable/disable. The device uses dedicated VDDO pins per output-enabling mixed-supply operation across banks-and stores configuration in on-chip NVM for power-up default operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output count | 6 differential outputs (or 12 LVCMOS), each individually configurable |
| Jitter (RMS) | 190 fs (measured with external crystal reference, 12 kHz–20 MHz integration bandwidth) |
| Max output frequency | 333.33 MHz differential; supports PCIe Gen4 (100 MHz) and SRIS-compliant timing |
| Synthesis modes | Integer and fractional synthesis per output; zero ppm frequency error for any rational ratio |
| Input range | External crystal: 16–50 MHz; no embedded crystal (Si5332C variant) |
| Supply voltages | VDD core: 1.8/2.5/3.3 V; VDDO per output: 1.8/2.5/3.3 V (differential), 1.5/1.8/2.5/3.3 V (LVCMOS) |
| Interface | I²C serial interface (up to 400 kHz); factory-programmed via ClockBuilder Pro custom part number |
Pinout & Package
SI5332CC09284-GM1R is housed in a 5×5 mm, 32-pin QFN package (RoHS-6 compliant) with exposed thermal pad. Pin assignments follow the Si5332-GM1 32-QFN layout: six differential output pairs (OUT0/OUT0b through OUT5/OUT5b), five universal hardware input pins (INPUT1–INPUT5), dedicated XA/XB crystal interface, CLKIN_2/CLKIN_2# differential input, I²C SCLK/SDATA, VDD/VDDO rails, and GND/EPAD.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XA, XB | Crystal oscillator input | Connects directly to external 16–50 MHz fundamental-mode crystal; internal load capacitance configurable (2–30 pF) |
| OUT0–OUT5, OUT0b–OUT5b | Differential clock outputs | Each pair supports independent format (LVDS/LVPECL/HCSL/LVCMOS), voltage (VDDOx), and skew (±122.5 ps) |
| VDDO0–VDDO5 | Output supply rails | Independent 1.8/2.5/3.3 V supplies per output bank-enables mixed-voltage system interfacing |
| INPUT1–INPUT5 | Universal hardware control pins | Configurable in ClockBuilder Pro as OE#, spread-spectrum enable, input select, or I²C address |
| SCLK, SDATA | I²C serial interface | Standard two-wire bus (400 kHz max); used for in-system reprogramming or runtime configuration updates |
Key Features
| Feature | Design Value |
|---|---|
| MultiSynth™ fractional synthesis | Enables any-rational output frequency up to 333.33 MHz with zero ppm error-replaces multiple fixed-frequency oscillators |
| Cross-point mux architecture | Routes any PLL/MultiSynth/INT divider output to any of six differential outputs-maximizes routing flexibility in dense PCB layouts |
| Per-output signal format control | LVDS, LVPECL, HCSL, or LVCMOS selectable per pin pair-eliminates need for external level translators |
| Configurable output skew | Adjustable ±122.5 ps in 35 ps steps per differential pair-supports precise timing alignment in SerDes lanes |
| Multi-profile NVM storage | Stores up to 16 configurations; enables glitchless on-the-fly frequency switching between preloaded profiles |
Applications
| Server Clock Distribution | Ethernet Switch Timing |
|---|---|
Use Scenario: Generating synchronized 100 MHz, 125 MHz, and 156.25 MHz clocks for CPU, memory, and PCIe Gen4 interfaces in dual-socket servers. IC Role / Device Role / Timing Role: Single-device clock tree synthesizer replacing discrete XO + fanout buffers + jitter cleaners. Use Value: Reduces BOM count by ≥4 components while maintaining <190 fs RMS jitter required for PCIe Gen4 link training. | Use Scenario: Providing low-jitter reference clocks to multiple PHYs and MACs in 10/25/100 GbE leaf-spine switches. IC Role / Device Role / Timing Role: Programmable clock source with independent output formatting for SFP+, QSFP28, and baseboard management controllers. Use Value: Eliminates inter-PHY skew via per-output configurable delay; supports SRIS compliance without external delay lines. |
| Storage Controller Synchronization | Broadcast Video Frame Sync |
Use Scenario: Delivering matched 148.5 MHz and 297 MHz pixel clocks plus 100 MHz system clock to NVMe SSD controller and FPGA-based RAID engine. IC Role / Device Role / Timing Role: Multi-frequency generator with independent VDDO per output-powers 1.8 V SerDes and 3.3 V legacy logic from one IC. Use Value: Enables mixed-supply domain timing without level-shifting ICs; reduces power delivery complexity vs. discrete solutions. | Use Scenario: Generating SMPTE ST 2081-10 compliant 27 MHz, 74.25 MHz, and 148.5 MHz video clocks with sub-100 ps inter-output skew for 4K/8K encoder racks. IC Role / Device Role / Timing Role: High-stability clock source with deterministic skew control for genlock and frame synchronization. Use Value: Meets SMPTE jitter mask requirements (<0.2 UI) using factory-calibrated MultiSynth; avoids external jitter attenuators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable clock generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si5332AC09284-GM1R | Same 6-output 32-QFN package and pinout; differs only in NVM configuration code (C vs. CC)-identical silicon and electrical specs | No functional difference; both support identical input ranges, jitter, and synthesis modes | Select based on ClockBuilder Pro-generated configuration file-CC denotes specific custom firmware image |
| LMK04832RHAT | 8-output, 40-QFN; higher power (1.2 W vs. 0.65 W); 110 fs RMS jitter (with external VCXO); requires external loop filter | Better suited for ultra-low-jitter applications (e.g., radar ADC sampling) but larger footprint and higher BOM cost | Choose LMK04832RHAT only if sub-120 fs jitter is mandatory; SI5332CC09284-GM1R offers superior integration and lower system cost for most comms infrastructure |
Compared with Si5332AC09284-GM1R, SI5332CC09284-GM1R delivers identical performance with a different factory-programmed configuration; versus LMK04832RHAT, it trades 80 fs lower jitter for smaller size, lower power, no external components, and simpler layout-making it optimal for space-constrained, cost-sensitive switch/router designs.
Availability
SI5332CC09284-GM1R is available at Aetrix Electronics and suitable for Ethernet switches, storage controllers, and broadcast video equipment requiring stable component supply, long-term lifecycle support, and factory-programmed reliability.
Supply support for SI5332CC09284-GM1R 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
Silicon Labs is a fabless semiconductor company specializing in timing, wireless, and IoT solutions, with over 20 years of leadership in high-performance clock technology.
The Si5332 family was designed to replace multiple discrete clock sources in communications and computing systems, delivering any-frequency synthesis, ultra-low jitter, and software-defined configurability in compact QFN packages.
FAQ
What is the crystal input frequency range supported by SI5332CC09284-GM1R?
The SI5332CC09284-GM1R supports external fundamental-mode crystals from 16 MHz to 50 MHz connected to XA/XB pins. It does not include an embedded crystal (Si5332C grade), so an external crystal is required for free-run operation. Crystal load capacitance is programmable from 2 pF to 30 pF via register settings, enabling compatibility with standard 12–20 pF crystals without external capacitors.
Does SI5332CC09284-GM1R support PCIe Gen4 compliance?
Yes, SI5332CC09284-GM1R is explicitly designed for PCIe Gen1/2/3/4 and SRIS compliance. Its 190 fs RMS phase jitter (12 kHz–20 MHz) meets the PCIe Gen4 specification limit of <250 fs RMS, and its programmable spread spectrum (down/center, 0.1–2.5%) helps pass EMI testing. The device also supports the required 100 MHz reference clock with tight period jitter and duty cycle stability.
How many independent output voltage domains does SI5332CC09284-GM1R support?
SI5332CC09284-GM1R provides six independent VDDO pins (VDDO0–VDDO5), one per differential output pair. Each can be set to 1.8 V, 2.5 V, or 3.3 V for differential drivers-or 1.5/1.8/2.5/3.3 V for LVCMOS-enabling true mixed-supply operation. This eliminates level shifters when driving 1.8 V SerDes and 3.3 V legacy logic from the same device.
Can SI5332CC09284-GM1R generate non-integer related output frequencies?
Yes, SI5332CC09284-GM1R uses Silicon Labs' MultiSynth™ fractional synthesis to generate any rational frequency ratio with zero ppm error. For example, it can simultaneously produce 156.25 MHz (Ethernet), 148.5 MHz (video), and 100.001 MHz (custom protocol) from a single 25 MHz crystal-without external dividers or jitter-cleaning circuits.
Is SI5332CC09284-GM1R pin-compatible with other Si5332 variants?
SI5332CC09284-GM1R shares the same 32-pin QFN footprint and pinout as all Si5332-GM1 devices (e.g., Si5332AC09284-GM1R, Si5332BC09284-GM1R). However, pin compatibility does not guarantee functional equivalence-output count, synthesis mode (fractional vs. integer-only), and embedded crystal presence differ across Si5332A–H grades. Always verify the full part number and ClockBuilder Pro configuration before substitution.
SI5332CC09284-GM1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Type:
- -
- PLL:
- -
- Input:
- -
- Output:
- -
- Number of Circuits:
- -
- Ratio - Input:Output:
- -
- Differential - Input:Output:
- -
- Frequency - Max:
- -
- Divider/Multiplier:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Mounting Type:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- -
SI5332CC09284-GM1R FAQ
1.How can I place an order for SI5332CC09284-GM1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI5332CC09284-GM1R 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 SI5332CC09284-GM1R reliable?
The price and inventory of SI5332CC09284-GM1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI5332CC09284-GM1R is usually 5 days.
3.What payment methods are accepted for SI5332CC09284-GM1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI5332CC09284-GM1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI5332CC09284-GM1R?
SI5332CC09284-GM1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI5332CC09284-GM1R 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 SI5332CC09284-GM1R?
For technical support, including SI5332CC09284-GM1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI5332CC09284-GM1R requirements.
6.How does Aetrix verify that SI5332CC09284-GM1R is sourced from the original manufacturer or authorized distributors?
All SI5332CC09284-GM1R 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 SI5332CC09284-GM1R meets industry standards.
7.What is the process for return or replacement of SI5332CC09284-GM1R?
All SI5332CC09284-GM1R units undergo pre-shipment inspection (PSI). If there is an issue with SI5332CC09284-GM1R, 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 SI5332CC09284-GM1R part is unused and in its original packaging.
Return procedure for SI5332CC09284-GM1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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