My Inquiry
My Account
Skyworks Solutions Inc. SI5332AC08967-GM1
- Part No.:
- SI5332AC08967-GM1
- Manufacturer:
- Skyworks Solutions Inc.
- Package:
- -
- Datasheet:
-
SI5332AC08967-GM1.pdf
- Description:
- IC CLOCK GENERATOR QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,760
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI5332AC08967-GM1 from Silicon Labs is a 6-output, 32-pin QFN programmable clock generator using MultiSynth™ fractional synthesis to deliver any-frequency outputs up to 333.33 MHz with 190 fs RMS phase jitter (external crystal). It supports LVDS/LVPECL/HCSL/LVCMOS per-output signal formatting and operates across –40 to +85 °C for Ethernet switch timing and server clock tree consolidation.
For engineers reviewing the SI5332AC08967-GM1 datasheet, SI5332AC08967-GM1 pinout, SI5332AC08967-GM1 application, or SI5332AC08967-GM1 equivalent, key selection criteria include its 6-differential-output capability, external 16–50 MHz crystal interface, independent VDDO per output bank, I²C programmability, and PCIe Gen1–4/SRIS compliance - all in a compact 5×5 mm QFN package.
Technical Context
The SI5332AC08967-GM1 implements a two-stage synthesis architecture: a wideband PLL locks to an external 16–50 MHz crystal (XA/XB), then feeds up to three independent MultiSynth fractional dividers and five integer dividers. Its cross-point mux routes any synthesized or divided frequency to any of six differential outputs.
Each output supports user-configurable format (LVDS/LVPECL/HCSL/LVCMOS), skew adjustment (±122.5 ps in 35 ps steps), and synchronous enable/disable. Input selection is configurable via register or two universal hardware pins (CLKIN_SEL[1:0]), and spread spectrum (down/center, 0.1–2.5%) is supported per MultiSynth path.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output count | 6 differential clock outputs, each with dedicated VDDO supply pin for mixed-voltage system interfacing |
| Frequency synthesis | Any-frequency generation up to 333.33 MHz using MultiSynth™ fractional synthesis; 0 ppm error |
| Phase jitter (RMS) | 190 fs (measured at 12 kHz–20 MHz offset, 156.25 MHz output, external crystal) |
| Input reference | External crystal: 16–50 MHz on XA/XB; no embedded crystal (Si5332A variant) |
| Output formats | Per-output selection: LVDS, LVPECL, HCSL, or LVCMOS with programmable swing and polarity |
| Supply voltages | VDD core: 1.8/2.5/3.3 V; VDDO per output: 1.5/1.8/2.5/3.3 V (LVCMOS) or 1.8/2.5/3.3 V (differential) |
| Operating temperature | –40 °C to +85 °C industrial grade, qualified for telecom and computing infrastructure |
Pinout & Package
SI5332AC08967-GM1 uses a 32-pin QFN package (5 mm × 5 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per the Si5332A/B/C/D 32-QFN pinout (Datasheet Section 6.3), supporting six differential outputs (OUT0–OUT5, each with complementary b-pin), seven universal hardware input pins (Input1–Input7), I²C interface (SCLK/SDATA), crystal interface (XA/XB), and dedicated VDDO pins per output bank.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT0 / OUT0b | Differential clock output pair | Configurable as LVDS/LVPECL/HCSL/LVCMOS; driven by cross-point mux from MultiSynth0/1 or INT divider |
| VDDO0 | Output supply voltage | Independent 1.5/1.8/2.5/3.3 V rail for OUT0/OUT0b; enables mixed-supply clock domain interfacing |
| XA / XB | Crystal oscillator interface | Connects external 16–50 MHz fundamental-mode crystal; internal CL selectable (2–30 pF) or disabled |
| SCLK / SDATA | I²C serial interface | Allows in-system configuration and dynamic reprogramming; supports ClockBuilder Pro-generated NVM images |
| Input1–Input5 | Universal hardware control pins | Configurable in ClockBuilder Pro as OE#, spread-spectrum enable, CLKIN_SEL, or I²C address select |
Key Features
| Feature | Design Value |
|---|---|
| MultiSynth™ fractional synthesis | Enables any-frequency output up to 333.33 MHz with zero synthesis error - eliminates need for multiple fixed-frequency oscillators |
| Per-output signal format control | Each of six outputs independently set to LVDS, LVPECL, HCSL, or LVCMOS - supports heterogeneous downstream clock receivers |
| Independent VDDO per output | Six dedicated VDDO pins allow simultaneous 1.8 V, 2.5 V, and 3.3 V clock signaling - simplifies multi-voltage SoC/FPGA timing |
| Configurable output skew | Adjustable ±122.5 ps skew per differential pair in 35 ps increments - enables precise inter-channel alignment for SerDes lanes |
| PCIe Gen1–4 & SRIS compliance | Meets stringent jitter and spectral requirements for PCIe root complex and endpoint timing without external filtering |
Applications
| Server Clock Tree Consolidation | Ethernet Switch Timing |
|---|---|
Use Scenario: Replacing discrete oscillators and fanout buffers in dual-socket x86 servers requiring 100 MHz, 125 MHz, 156.25 MHz, and 312.5 MHz clocks for CPU, PCIe, Ethernet PHY, and memory interfaces. IC Role / Device Role / Timing Role: Single-chip clock generator providing synchronized, low-jitter clocks across multiple voltage domains and protocols. Use Value: Reduces BOM count by ≥7 components, eliminates inter-clock skew, and meets PCIe Gen4 common clock jitter spec (<150 fs RMS). | Use Scenario: Timing engine for 10/25/100 GbE switches with mixed-rate SerDes (e.g., 156.25 MHz for 10GbE, 312.5 MHz for 25GbE, 625 MHz for 100GbE). IC Role / Device Role / Timing Role: Programmable clock source delivering protocol-specific frequencies with sub-200 fs jitter and spread spectrum for EMI reduction. Use Value: Enables single-firmware design across switch SKUs; avoids redesign when port speeds change. |
| Industrial Embedded Computing | Broadcast Video Synchronization |
Use Scenario: Clocking ARM-based edge AI gateways with heterogeneous peripherals: DDR4 (1333 MHz), eMMC (52 MHz), USB 3.0 (100 MHz), and Gigabit Ethernet (125 MHz). IC Role / Device Role / Timing Role: Flexible frequency synthesizer generating integer and non-integer related clocks from one crystal reference. Use Value: Eliminates crystal inventory complexity; supports field firmware updates to adjust clock plans without hardware change. | Use Scenario: SMPTE ST 2059-2 compliant PTP grandmaster clock distribution in 4K/8K video production systems requiring 27 MHz, 74.25 MHz, and 148.5 MHz with <1 ns inter-output skew. IC Role / Device Role / Timing Role: Low-phase-noise clock generator with programmable skew and synchronous output disable for glitch-free switching. Use Value: Meets broadcast-grade timing stability (±50 ppb holdover) and enables seamless source switching without frame drops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable clock generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si5332BC08967-GM1 | Same 32-QFN package and pinout; Si5332B variant supports max 200 MHz output (vs. 333.33 MHz for Si5332A) | Limited to lower-speed protocols (e.g., 1G/2.5G Ethernet, SATA); not suitable for PCIe Gen4 or 25G+ SerDes | Select only if output frequencies ≤200 MHz and cost sensitivity outweighs future-proofing needs. |
| Si5338AC08967-GM1 | 4-output, 24-QFN device; uses older MultiSynth architecture with higher jitter (250 fs RMS) and no spread spectrum | Lower channel count and reduced feature set; lacks PCIe/SRIS compliance and per-output format control | Consider only for legacy designs where footprint and cost are critical and 190 fs jitter is not required. |
Compared with Si5332BC08967-GM1 and Si5338AC08967-GM1, the SI5332AC08967-GM1 delivers higher maximum frequency (333.33 MHz), lower jitter (190 fs), full spread spectrum support, and richer output configurability - making it the optimal choice for next-generation compute and networking platforms requiring protocol flexibility and signal integrity.
Availability
SI5332AC08967-GM1 is available at Aetrix Electronics and suitable for Ethernet switches, server clock trees, and industrial embedded computing applications requiring stable component supply, long-term lifecycle support, and factory-programmed configurations.
Supply support for SI5332AC08967-GM1 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 connectivity.
The Si5332 family was designed to replace multiple fixed-frequency oscillators and clock buffers with a single programmable device - targeting data center, telecom infrastructure, and high-reliability embedded systems demanding ultra-low jitter and multi-protocol timing flexibility.
FAQ
What is the maximum output frequency supported by the SI5332AC08967-GM1?
The SI5332AC08967-GM1 supports differential output frequencies up to 333.33 MHz and LVCMOS outputs up to 170 MHz. This capability is enabled by its MultiSynth™ fractional synthesis architecture and applies specifically to the Si5332A variant (external crystal), which the SI5332AC08967-GM1 belongs to. Higher frequencies require verification against the specific ClockBuilder Pro configuration and layout constraints.
Does the SI5332AC08967-GM1 include an embedded crystal?
No, the SI5332AC08967-GM1 does not include an embedded crystal. It is a Si5332A variant, which requires an external 16–50 MHz fundamental-mode crystal connected to the XA/XB pins. Embedded crystal versions (e.g., Si5332E/F/G/H) use a factory-integrated 50 MHz MEMS resonator and are designated with different suffixes.
How many universal hardware input pins does the SI5332AC08967-GM1 have?
The SI5332AC08967-GM1 has five user-configurable universal hardware input pins (Input1–Input5), as confirmed in the Si5332-GM1 block diagram (Figure 3.3) and datasheet Section 3.3. These pins can be assigned in ClockBuilder Pro to functions including output enable (OE#), spread spectrum enable, input clock selection (CLKIN_SEL), or I²C address select.
Is the SI53332AC08967-GM1 pin-compatible with other Si5332 variants in the same package?
Yes, the SI5332AC08967-GM1 shares identical pinout and package (32-pin QFN, 5×5 mm) with all other Si5332-GM1 variants (e.g., Si5332BC08967-GM1, Si5332CC08967-GM1). Pin compatibility is maintained across Si5332A/B/C/D grades in the GM1 package, enabling drop-in substitution when frequency and jitter requirements align.
What clock protocols does the SI5332AC08967-GM1 officially support?
The SI5332AC08967-GM1 is explicitly documented as PCIe Gen1/2/3/4 and SRIS compliant in the datasheet Features List. Its 190 fs RMS jitter performance, programmable spread spectrum, and output format flexibility meet the timing requirements of these protocols without external cleanup circuits.
SI5332AC08967-GM1 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:
- -
SI5332AC08967-GM1 FAQ
1.How can I place an order for SI5332AC08967-GM1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI5332AC08967-GM1 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 SI5332AC08967-GM1 reliable?
The price and inventory of SI5332AC08967-GM1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI5332AC08967-GM1 is usually 5 days.
3.What payment methods are accepted for SI5332AC08967-GM1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI5332AC08967-GM1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI5332AC08967-GM1?
SI5332AC08967-GM1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI5332AC08967-GM1 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 SI5332AC08967-GM1?
For technical support, including SI5332AC08967-GM1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI5332AC08967-GM1 requirements.
6.How does Aetrix verify that SI5332AC08967-GM1 is sourced from the original manufacturer or authorized distributors?
All SI5332AC08967-GM1 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 SI5332AC08967-GM1 meets industry standards.
7.What is the process for return or replacement of SI5332AC08967-GM1?
All SI5332AC08967-GM1 units undergo pre-shipment inspection (PSI). If there is an issue with SI5332AC08967-GM1, 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 SI5332AC08967-GM1 part is unused and in its original packaging.
Return procedure for SI5332AC08967-GM1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI5332AC08967-GM1 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…
