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Skyworks Solutions Inc. SI5332DC09623-GM2R
- Part No.:
- SI5332DC09623-GM2R
- Manufacturer:
- Skyworks Solutions Inc.
- Package:
- -
- Datasheet:
-
SI5332DC09623-GM2R.pdf
- Description:
- IC CLOCK GENERATOR QFN
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Product details
Overview
SI5332DC09623-GM2R from Silicon Labs is a factory-programmed, 8-output, high-performance programmable clock generator based on MultiSynth™ fractional synthesis. It delivers up to 8 differential LVDS/LVPECL/HCSL outputs with 190 fs RMS phase jitter (external crystal), supports 5–333.33 MHz differential output frequencies, and operates across –40 to +85 °C for Ethernet switch timing and server clock tree consolidation.
For engineers reviewing the SI5332DC09623-GM2R datasheet, SI5332DC09623-GM2R pinout, SI5332DC09623-GM2R application, or SI5332DC09623-GM2R equivalent, key selection considerations include its 40-pin QFN package, embedded configuration for 8-output mixed-voltage bank operation, I²C programmability, and PCIe Gen4/SRIS compliance.
Technical Context
The SI5332DC09623-GM2R implements a wideband PLL paired with three independent MultiSynth fractional synthesis paths and five integer dividers, enabling simultaneous generation of non-integer-related frequencies across eight differential outputs. Its cross-point mux routes any synthesized or divided frequency to any output bank.
It supports free-run mode using an external 16–50 MHz crystal or synchronous mode via differential (10–250 MHz) or LVCMOS (10–170 MHz) inputs. Each of the two dedicated VDDO banks and two shared VDDO banks allows independent 1.8/2.5/3.3 V supply per output group, supporting mixed-signal SoC interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Count | 8 differential clock outputs (Si5332-GM2 variant) |
| RMS Phase Jitter | 190 fs (12 kHz–20 MHz integration bandwidth, external crystal) |
| Differential Output Range | 5–333.33 MHz - enables PCIe Gen4 (100 MHz), Ethernet 10G (156.25 MHz), and CPRI (307.2 MHz) support |
| Input Reference | External crystal (16–50 MHz) - no embedded crystal; requires XA/XB connection |
| Supply Voltages | VDD = 1.8/2.5/3.3 V; VDDO banks = 1.8/2.5/3.3 V - supports mixed-voltage SerDes and PHY interfaces |
| Signal Formats | Per-output configurable LVDS, LVPECL, HCSL, or LVCMOS - eliminates need for external level translators |
| Operating Temp | –40 to +85 °C - qualified for industrial and networking equipment environments |
Pinout & Package
SI5332DC09623-GM2R is housed in a 6 × 6 mm, 40-pin QFN package (GM2 suffix) with exposed thermal pad. Pin functions align with the Si5332-GM2 40-QFN pinout defined in Section 6.2 of the datasheet, including six VDDO pins (VDDO0–VDDO5), eight differential output pairs (OUT0/OUT0b through OUT7/OUT7b), two differential input pairs (CLKIN_2/CLKIN_2#, CLKIN_3/CLKIN_3#), crystal interface (XA/XB), I²C (SCLK/SDATA), and seven universal hardware input pins (IN1–IN7).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT0 / OUT0b | Differential clock output pair | Individually configurable signal format (LVDS/LVPECL/HCSL); driven from cross-point mux; dedicated VDDO0 supply |
| OUT1 / OUT1b to OUT3 / OUT3b | Differential clock output pairs | Grouped into Bank A (VDDO1) and Bank B (VDDO2); share common VDDO per bank; support independent voltage and format |
| OUT4 / OUT4b to OUT7 / OUT7b | Differential clock output pairs | Grouped into Bank C (VDDO3) and Bank D (VDDO4); each bank has dedicated VDDO; enables mixed-supply clock distribution |
| VDDO0–VDDO5 | Output driver supply pins | Power individual outputs or banks; set logic levels and drive strength; decoupling required per bank |
| XA / XB | Crystal oscillator terminals | Connect external 16–50 MHz fundamental-mode crystal; internal load capacitance configurable via register |
| SCLK / SDATA | I²C serial interface | Supports in-system reconfiguration; standard 100/400 kHz modes; pull-ups required |
| IN1–IN7 | Universal hardware input pins | Configurable as OE#, spread spectrum enable, input select, or I²C address; defined in ClockBuilder Pro |
Key Features
| Feature | Design Value |
|---|---|
| MultiSynth™ fractional synthesis | Enables zero-ppm error generation of any frequency up to 250 MHz on any output - replaces multiple fixed-frequency oscillators |
| Cross-point output mux | Routes any of three MultiSynth or five integer-divided sources to any output bank - maximizes frequency flexibility without redesign |
| Per-output signal format control | LVDS/LVPECL/HCSL/LVCMOS selectable per pin pair - interfaces directly with diverse SerDes, PHY, and FPGA clock inputs |
| Configurable output skew | Adjustable ±122.5 ps in 35 ps steps per differential pair - enables precise timing alignment across multi-lane interfaces |
| Synchronous output disable | Prevents runt pulses by disabling only at clock edge boundaries - ensures glitch-free power management in hot-plug systems |
| Multi-profile NVM storage | Stores up to 16 configurations; powers up with default profile - supports field-upgradable timing schemes without firmware changes |
Applications
| Server Clock Tree Consolidation | Ethernet Switch Timing |
|---|---|
Use Scenario: Replacing discrete oscillators and fanout buffers in dual-socket x86 servers with DDR5 memory and PCIe Gen5 root complexes. IC Role / Device Role / Timing Role: Primary clock generator synthesizing CPU reference (100 MHz), memory clock (1200 MHz DDR5 DQS), PCIe REFCLK (100 MHz), and USB 3.2 (100 MHz) from single crystal. Use Value: Reduces BOM count by 7+ components; eliminates inter-clock skew; meets PCIe Gen5 jitter spec (<300 fs RMS) with 190 fs measured performance. | Use Scenario: Providing synchronized clocks to multi-port 10G/25G/100G Ethernet switch ASICs and PHYs in data center top-of-rack switches. IC Role / Device Role / Timing Role: Generating 156.25 MHz (10G), 312.5 MHz (25G), and 100 MHz (management) clocks with sub-200 fs jitter and bank-isolated supplies. Use Value: Enables deterministic latency across ports; supports IEEE 802.3cd SRIS compliance; eliminates need for separate clock ICs per speed tier. |
| Mobile Fronthaul Small Cell | Broadcast Video Synchronization |
Use Scenario: Timing distribution in 5G massive MIMO remote radio units requiring CPRI/eCPRI and synchronization to PTP grandmaster. IC Role / Device Role / Timing Role: Synthesizing 307.2 MHz (CPRI), 245.76 MHz (eCPRI), and 10 MHz/1 PPS reference from GPS-disciplined OCXO input. Use Value: Achieves <100 ns phase alignment across RF chains; supports hitless switching between primary/backup references via register-controlled input select. | Use Scenario: Frame-accurate clocking of SMPTE ST 2110 IP video encoders, decoders, and routers in broadcast production facilities. IC Role / Device Role / Timing Role: Delivering 74.25 MHz (HD), 148.5 MHz (3G-SDI), and 27 MHz (legacy) clocks with ultra-low jitter and deterministic skew control. Use Value: Prevents video frame tearing and audio sync drift; meets SMPTE ST 2059-2 PTP timing accuracy requirements (<1 μs). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable clock generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si5332DC09622-GM2R | Same 40-pin QFN package and 8-output architecture, but configured for embedded 50 MHz crystal (E/F/G/H grade); lacks XA/XB crystal pins | Requires no external crystal; suited for space-constrained designs where board-level crystal layout is impractical | Select when crystal integration reduces layout complexity and cost outweighs external crystal flexibility |
| LMK04832RHAR | 2× PLL architecture with jitter cleaner function; higher power; 14-output max; supports JESD204B deterministic latency | Targeted at high-speed data converter timing; includes dual-loop clean-up not present in SI5332DC09623-GM2R | Select when sub-100 fs jitter cleaning or JESD204B SYSREF alignment is required - not a drop-in replacement |
Compared with SI5332DC09623-GM2R, the Si5332DC09622-GM2R trades external crystal flexibility for smaller footprint and lower component count, while the LMK04832RHAR adds jitter cleaning and deterministic latency at the cost of higher power and non-compatible register mapping - neither is pin- or firmware-compatible.
Availability
SI5332DC09623-GM2R is available at Aetrix Electronics and suitable for Ethernet switch timing, server clock tree consolidation, mobile fronthaul small cell synchronization, and broadcast video infrastructure requiring stable component supply and long-term lifecycle support.
Supply support for SI5332DC09623-GM2R 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 leadership in low-jitter clock generation and programmable oscillators.
The Si5332 family was designed to replace multiple fixed-frequency clock sources with a single, software-configurable device for high-speed networking, computing, and communications systems - SI5332DC09623-GM2R implements the 8-output variant optimized for density and flexibility in mid-tier infrastructure.
FAQ
What is the core function of the SI5332DC09623-GM2R in a system design?
The SI5332DC09623-GM2R serves as a programmable, multi-output clock generator that synthesizes up to eight independent, low-jitter clock frequencies from a single external crystal or reference input. It replaces multiple discrete oscillators and fanout buffers, reducing board space and inter-clock skew. Its MultiSynth™ architecture ensures zero-ppm frequency error, making SI5332DC09623-GM2R ideal for PCIe, Ethernet, and CPRI timing-critical applications.
Does the SI5332DC09623-GM2R include an embedded crystal?
No, the SI5332DC09623-GM2R does not include an embedded crystal. The "DC" prefix indicates it belongs to the Si5332A/B/C/D series, which require an external 16–50 MHz fundamental-mode crystal connected to the XA/XB pins. Embedded crystal variants use "E/F/G/H" suffixes (e.g., SI5332DC09622-GM2R). Using SI5332DC09623-GM2R mandates proper PCB layout and load capacitance tuning for optimal 190 fs jitter performance.
How many independent voltage domains does the SI5332DC09623-GM2R support for its outputs?
The SI5332DC09623-GM2R supports four independent output voltage domains: two dedicated VDDO supplies (VDDO0 and VDDO1) for OUT0–OUT1 and OUT2–OUT3, and two shared VDDO supplies (VDDO2 for OUT4–OUT5, VDDO3 for OUT6–OUT7), plus VDDO4 and VDDO5 reserved for future expansion or unused pins. Each domain accepts 1.8 V, 2.5 V, or 3.3 V, enabling mixed-supply operation across different SerDes and PHY interfaces within a single SI5332DC09623-GM2R device.
Can the SI5332DC09623-GM2R generate PCIe Gen4-compliant REFCLK?
Yes, the SI5332DC09623-GM2R generates PCIe Gen4-compliant 100 MHz REFCLK with 190 fs RMS phase jitter (12 kHz–20 MHz), meeting the PCIe Gen4 specification limit of <300 fs. Its fractional synthesis ensures zero-ppm frequency error, and its configurable output format supports LVDS or HCSL signaling required by host controllers and endpoints. SI5332DC09623-GM2R also complies with SRIS (Spread Spectrum Independent Spread) requirements when enabled.
Is the SI5332DC09623-GM2R programmable after soldering to the PCB?
Yes, the SI5332DC09623-GM2R supports full in-circuit programming via its I²C interface (SCLK/SDATA pins), allowing runtime reconfiguration of output frequencies, formats, and enable states without reflashing or replacing the device. Factory-programmed configurations are stored in non-volatile memory (NVM) and load at power-up, but users can overwrite settings dynamically - making SI5332DC09623-GM2R suitable for prototyping, field upgrades, and multi-configurable platforms.
SI5332DC09623-GM2R 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:
- -
SI5332DC09623-GM2R FAQ
1.How can I place an order for SI5332DC09623-GM2R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI5332DC09623-GM2R 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 SI5332DC09623-GM2R reliable?
The price and inventory of SI5332DC09623-GM2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI5332DC09623-GM2R is usually 5 days.
3.What payment methods are accepted for SI5332DC09623-GM2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI5332DC09623-GM2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI5332DC09623-GM2R?
SI5332DC09623-GM2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI5332DC09623-GM2R 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 SI5332DC09623-GM2R?
For technical support, including SI5332DC09623-GM2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI5332DC09623-GM2R requirements.
6.How does Aetrix verify that SI5332DC09623-GM2R is sourced from the original manufacturer or authorized distributors?
All SI5332DC09623-GM2R 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 SI5332DC09623-GM2R meets industry standards.
7.What is the process for return or replacement of SI5332DC09623-GM2R?
All SI5332DC09623-GM2R units undergo pre-shipment inspection (PSI). If there is an issue with SI5332DC09623-GM2R, 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 SI5332DC09623-GM2R part is unused and in its original packaging.
Return procedure for SI5332DC09623-GM2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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