My Inquiry
My Account
Skyworks Solutions Inc. SI5332AC08220-GM3
- Part No.:
- SI5332AC08220-GM3
- Manufacturer:
- Skyworks Solutions Inc.
- Package:
- -
- Datasheet:
-
SI5332AC08220-GM3.pdf
- Description:
- IC CLOCK GENERATOR QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,466
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI5332AC08220-GM3 from Silicon Labs is a 12-output, any-frequency programmable clock generator with MultiSynth™ fractional synthesis, delivering 190 fs RMS phase jitter (external crystal), 5–333.33 MHz differential output range, and user-configurable LVDS/LVPECL/HCSL/LVCMOS signal formats per output. It serves as a high-density clock tree synthesizer in multi-protocol Ethernet switch timing systems.
For engineers reviewing the SI5332AC08220-GM3 datasheet, SI5332AC08220-GM3 pinout, SI5332AC08220-GM3 application, or SI5332AC08220-GM3 equivalent, key selection considerations include its 48-pin QFN package, embedded 50 MHz crystal option compatibility, 12-differential-output architecture with independent VDDO banks, and I²C programmability for PCIe Gen4/SRIS-compliant timing.
Technical Context
The SI5332AC08220-GM3 implements a two-stage synthesis architecture: a wideband PLL locks to an external 16–50 MHz crystal or differential clock input, then feeds up to three independent MultiSynth fractional dividers and five integer dividers. Its cross-point mux routes synthesized frequencies to any of twelve differential outputs.
Each output bank (A–D) shares a dedicated VDDO supply (1.8/2.5/3.3 V), enabling mixed-voltage clock distribution. Output skew is adjustable in 35 ps steps (±122.5 ps), and synchronous output disable prevents runt pulses during enable/disable transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Count | 12 differential clock outputs (24 LVCMOS possible via dual-pin mode) |
| Jitter Performance | 190 fs RMS (measured at 12 kHz–20 MHz offset, external crystal reference) |
| Frequency Range | Differential outputs: 5–333.33 MHz; supports integer + fractional synthesis up to 250 MHz |
| Input Options | External crystal (16–50 MHz) or differential clock (10–250 MHz); no crystal required in sync mode |
| Signal Formats | Per-output configurable: LVDS, LVPECL, HCSL, or LVCMOS (1.5–3.3 V) |
| Supply Voltages | VDD core: 1.8/2.5/3.3 V; six independent VDDO pins support mixed-supply bank operation |
| Temperature Range | –40 °C to +85 °C industrial grade operation |
Pinout & Package
SI5332AC08220-GM3 uses a 48-pin QFN package (6 mm × 6 mm, 0.4 mm pitch) with exposed thermal pad. Pin functions are defined per the Si5332A/B/C/D external-crystal variant specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XA/XB | Crystal oscillator input | Accepts 16–50 MHz fundamental-mode crystal; internal load capacitance programmable (2–30 pF) |
| CLKIN_2/CLKIN_2#, CLKIN_3/CLKIN_3# | Differential clock inputs | Support LVPECL/LVDS/HCSL; AC-coupled; selectable as primary reference via register or HW pin |
| OUT0–OUT11, OUT0b–OUT11b | Differential clock outputs | Twelve fully independent pairs; each pair configurable for format, swing, polarity, and skew (35 ps step) |
| VDDO0–VDDO5 | Output bank supply rails | Six dedicated supplies powering four output banks (A–D); enables mixed-voltage clock distribution |
| SCLK/SDATA | I²C serial interface | Standard 100/400 kHz I²C bus for in-system configuration and real-time reprogramming |
| OEb, INSEL[1:0], SS_EN | Universal hardware inputs | Seven configurable pins; assignable as output enable, input select, spread-spectrum control, or I²C address |
Key Features
| Feature | Design Value |
|---|---|
| MultiSynth™ fractional synthesis | Enables zero-error generation of non-integer-related frequencies up to 250 MHz on any output |
| Cross-point output mux | Routes any MultiSynth or integer divider output to any differential output bank-maximizing routing flexibility |
| Independent output skew control | Adjustable ±122.5 ps per differential pair in 35 ps increments for precise inter-bank alignment |
| Synchronous output disable | Guarantees clean clock termination without runt pulses by disabling only at full-cycle boundaries |
| Multi-profile NVM storage | Stores up to 16 complete clock configurations; enables glitchless on-the-fly frequency switching |
Applications
| Server Clock Tree Synthesis | Ethernet Switch Timing |
|---|---|
Use Scenario: Generating synchronized 100 MHz, 156.25 MHz, and 312.5 MHz clocks for CPU, memory, and PCIe Gen4 interfaces in dual-socket rack servers. IC Role / Device Role / Timing Role: Single-device clock tree synthesizer replacing discrete oscillators and fanout buffers while maintaining sub-200 fs jitter. Use Value: Reduces BOM count by ≥7 components and eliminates inter-clock skew between critical subsystems. | Use Scenario: Providing low-jitter reference clocks for 10G/25G/100G Ethernet PHYs, MACs, and packet processors in layer-3 switches. IC Role / Device Role / Timing Role: Programmable jitter-cleaner and frequency translator supporting IEEE 802.3bj/ck SRIS compliance. Use Value: Enables single-part support across multiple line-card SKUs via software-defined clock plans. |
| Small Cell Fronthaul Timing | Broadcast Video Synchronization |
Use Scenario: Delivering phase-aligned 245.76 MHz CPRI/O-RAN eCPRI clocks to remote radio units and baseband units in 5G small cells. IC Role / Device Role / Timing Role: High-stability clock generator with <±100 ps inter-output skew for deterministic fronthaul latency. Use Value: Meets ITU-T G.8262 EEC-2 wander requirements without external jitter cleaners. | Use Scenario: Generating SMPTE ST 2059-2 compliant 27 MHz, 74.25 MHz, and 148.5 MHz video reference clocks for camera, encoder, and display subsystems. IC Role / Device Role / Timing Role: Multi-format clock source supporting both LVDS (for long traces) and LVCMOS (for SoC inputs) simultaneously. Use Value: Eliminates need for level-shifting buffers and reduces PCB layer count in compact broadcast enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable clock generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si5332AC08221-GM3 | Same 48-QFN package and 12-output architecture; differs in factory-programmed NVM configuration (NVM code 08221 vs. 08220) | Targets identical server/switch applications but with alternate frequency plan (e.g., different PCIe + Ethernet combo) | Select when requiring pre-loaded clock plan matching specific board-level timing constraints. |
| LMK04832RHAT | 14-output, dual-loop PLL architecture; higher power; 115 fs RMS jitter (with external VCXO); requires external loop filter | Better suited for ultra-low-jitter instrumentation or radar where sub-120 fs is mandatory | Choose only if SI5332AC08220-GM3's 190 fs jitter fails system-level BER testing under worst-case PVT. |
Compared with SI5332AC08220-GM3, Si5332AC08221-GM3 offers identical hardware but distinct factory-programmed timing; LMK04832RHAT provides lower jitter at the cost of higher design complexity and power, making it appropriate only for niche test/measurement use cases.
Availability
SI5332AC08220-GM3 is available at Aetrix Electronics and suitable for Ethernet switches, 5G small cells, and broadcast video equipment requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for SI5332AC08220-GM3 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 high-performance clock generation and low-power RF ICs.
The Si5332 family was designed to replace multiple fixed-frequency oscillators and clock buffers in datacenter, networking, and communications infrastructure-enabling software-defined clock trees with zero ppm synthesis error.
FAQ
What is the maximum differential output frequency supported by SI5332AC08220-GM3?
The SI5332AC08220-GM3 supports differential output frequencies from 5 MHz to 333.33 MHz. This upper limit applies to integer-mode synthesis; fractional synthesis is specified up to 250 MHz. The device achieves this using its MultiSynth™ architecture with integrated PLL and configurable output dividers, ensuring 0 ppm frequency error across the full range.
Does SI5332AC08220-GM3 include an embedded crystal?
No, SI5332AC08220-GM3 does not include an embedded crystal. It belongs to the Si5332A/B/C/D series, which requires an external 16–50 MHz fundamental-mode crystal connected to XA/XB pins. Embedded crystal variants (e.g., Si5332E/F/G/H) use part numbers ending in -GM3E, -GM3F, etc.-not applicable to SI5332AC08220-GM3.
How many independent voltage domains does SI5332AC08220-GM3 support for its clock outputs?
SI5332AC08220-GM3 supports six independent output supply domains via VDDO0–VDDO5 pins, powering four differential output banks (A–D). Each bank can operate at 1.8 V, 2.5 V, or 3.3 V, enabling simultaneous LVDS (2.5 V), LVPECL (3.3 V), and HCSL (1.8 V) signaling on a single device-critical for mixed-ASIC/FPGA timing systems.
Can SI5332AC08220-GM3 be programmed in-system after soldering?
Yes, SI5332AC08220-GM3 supports full in-system programming via its standard I²C interface (SCLK/SDATA pins). ClockBuilder Pro generates register maps for custom configurations, and the device retains settings in non-volatile memory. Factory-programmed NVM (e.g., NVM code 08220) serves as power-up default, but runtime reconfiguration is fully supported without requiring reflashing.
What is the phase jitter performance of SI5332AC08220-GM3 under typical operating conditions?
SI5332AC08220-GM3 delivers 190 fs RMS phase jitter (12 kHz–20 MHz integration bandwidth) when using an external 16–50 MHz crystal reference. This value is measured per JEDEC Standard JESD65B and reflects worst-case conditions across temperature and voltage; actual system-level jitter may improve with optimized PCB layout and proper crystal selection.
SI5332AC08220-GM3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tray
- 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:
- -
SI5332AC08220-GM3 FAQ
1.How can I place an order for SI5332AC08220-GM3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI5332AC08220-GM3 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 SI5332AC08220-GM3 reliable?
The price and inventory of SI5332AC08220-GM3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI5332AC08220-GM3 is usually 5 days.
3.What payment methods are accepted for SI5332AC08220-GM3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI5332AC08220-GM3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI5332AC08220-GM3?
SI5332AC08220-GM3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI5332AC08220-GM3 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 SI5332AC08220-GM3?
For technical support, including SI5332AC08220-GM3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI5332AC08220-GM3 requirements.
6.How does Aetrix verify that SI5332AC08220-GM3 is sourced from the original manufacturer or authorized distributors?
All SI5332AC08220-GM3 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 SI5332AC08220-GM3 meets industry standards.
7.What is the process for return or replacement of SI5332AC08220-GM3?
All SI5332AC08220-GM3 units undergo pre-shipment inspection (PSI). If there is an issue with SI5332AC08220-GM3, 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 SI5332AC08220-GM3 part is unused and in its original packaging.
Return procedure for SI5332AC08220-GM3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI5332AC08220-GM3 Tags
-
CD74HCT4046AM96
Texas Instruments
-
MC14046BDWR2G
onsemi
-
501MILFT
Renesas
-
CD74HC7046AM
Texas Instruments
-
CDCVF2505PWR
Texas Instruments
-
RC19004A100GNL#KB0
Renesas
-
SI5351A-B-GTR
Skyworks Solutions Inc.
-
CY2305SXI-1T
Infineon Technologies
-
570BILFT
Renesas
-
CDCE913PWR
Texas Instruments
-
CY2305SXI-1HT
Infineon Technologies
-
DS1086LU+T
Analog Devices Inc./Maxim Integrated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
