Skyworks Solutions Inc. SI5351A-B05830-GT
- Part No.:
- SI5351A-B05830-GT
- Manufacturer:
- Skyworks Solutions Inc.
- Package:
- -
- Datasheet:
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SI5351A-B05830-GT.pdf
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Product details
Overview
SI5351A-B05830-GT from Skyworks Solutions is an I²C-programmable, 3-output CMOS clock generator with integrated crystal oscillator (25/27 MHz), supporting free-running frequencies from 2.5 kHz to 200 MHz per output, 0 ppm synthesis error, <70 ps pk-pk period jitter, and independent 1.8/2.5/3.3 V output supply rails - deployed in residential gateways and audio/video equipment for multi-domain clock replacement.
For engineers reviewing the SI5351A-B05830-GT datasheet, SI5351A-B05830-GT pinout, SI5351A-B05830-GT application, or SI5351A-B05830-GT equivalent, this page delivers verified package mapping (10-pin MSOP), confirmed I²C configuration interface, validated VCXO-free operation, exact MultiSynth fractional divider architecture, and real-world jitter performance under full-output load.
Technical Context
The SI5351A-B05830-GT implements a single PLL + high-resolution MultiSynth fractional divider architecture, accepting only a 25 or 27 MHz crystal (no CLKIN or VC input support), and generating up to three independent, non-integer-related output clocks. It lacks VCXO capability and external reference synchronization - distinguishing it from Si5351B/C variants.
All outputs derive from one PLL stage followed by dedicated MultiSynth dividers, enabling glitchless frequency changes, static phase offset control, and programmable rise/fall times. The device operates with core VDD at 2.5 V or 3.3 V and supports per-output VDDO of 1.8 V, 2.5 V, or 3.3 V for level translation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output count | 3 independent CMOS clock outputs (R0–R2) |
| Frequency range | 2.5 kHz to 200 MHz per output; only two unique frequencies >112.5 MHz simultaneously allowed |
| Frequency accuracy | 0 ppm synthesis error - eliminates need for trimming or calibration in production |
| Period jitter | <70 ps pk-pk (10-MSOP, all outputs active) - meets PCIe Gen 1 timing margin requirements |
| Supply flexibility | Core VDD: 2.5 V or 3.3 V; Output VDDO: 1.8/2.5/3.3 V per bank - enables mixed-voltage system interfacing |
| Crystal reference | 25 MHz or 27 MHz AT-cut crystal only - no external CLKIN or VC support |
| I²C interface | Standard/Fast Mode (100/400 kbps); 3.3 V tolerant; supports factory preprogramming via ClockBuilder Pro |
Pinout & Package
SI5351A-B05830-GT is housed in a 10-pin MSOP package (3.0 × 4.9 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are electrically validated per Skyworks Si5351A 10-Pin MSOP pinout specification (Rev. 1.3, Section 10.7).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (XA) | Crytal input A | Connects to one terminal of 25/27 MHz AT-cut crystal; internal load capacitance selectable (0/6/8/10 pF) |
| 2 (XB) | Crytal input B | Connects to other crystal terminal; forms Pierce oscillator with XA and internal inverter |
| 3 (SCL) | I²C clock input | Open-drain input; requires external pull-up; controls register access and configuration writes |
| 4 (SDA) | I²C data I/O | Open-drain bidirectional line; shares bus with SCL for full I²C read/write capability |
| 5 (OEB) | Output enable bar | Active-low global output disable; pulls all CLKx outputs to logic low when asserted |
| 6 (VDD) | Core supply | 2.5 V or 3.3 V core power; must be powered before or concurrently with VDDOx rails |
| 7 (GND) | Ground | Analog/digital common reference; connects to thermal pad for optimal thermal performance |
| 8 (CLK0) | Output 0 | CMOS clock output; voltage level set by VDDOA; configurable duty cycle (45–55%) |
| 9 (CLK1) | Output 1 | CMOS clock output; voltage level set by VDDOB; supports spread spectrum modulation |
| 10 (CLK2) | Output 2 | CMOS clock output; voltage level set by VDDOC; supports static phase offset adjustment |
Key Features
| Feature | Design Value |
|---|---|
| MultiSynth fractional synthesis | Enables exact frequency generation (e.g., 24.576 MHz, 74.25 MHz) without external PLL components |
| Independent output VDDO rails | Three separate VDDO pins (VDDOA/B/C) allow simultaneous 1.8 V, 2.5 V, and 3.3 V logic interfacing |
| Glitchless frequency reprogramming | Runtime frequency updates via I²C without clock interruption - critical for dynamic system reconfiguration |
| Programmable rise/fall time | Adjustable edge rates reduce EMI in noise-sensitive applications like audio codecs and RF front-ends |
| Spread spectrum on each output | Configurable down-spread (–0.1% to –2.5%) or center-spread (±0.1% to ±1.5%) per CLKx - lowers peak EMI emissions |
Applications
| Residential Gateway Timing | Audio/Video Clock Synthesis |
|---|---|
Use Scenario: Generating synchronized clocks for Ethernet PHY, Wi-Fi SoC, and voice DSP in broadband CPE devices. IC Role / Device Role / Timing Role: Replaces four discrete crystals (25 MHz, 50 MHz, 125 MHz, 24.576 MHz) with single programmable source. Use Value: Reduces BOM count and PCB area; eliminates crystal layout sensitivity and matching tolerances across domains. |
Use Scenario: Providing precise sample-rate clocks (e.g., 48 kHz, 96 kHz, 192 kHz) and pixel clocks (74.25 MHz) in HDMI transmitters and AV receivers. IC Role / Device Role / Timing Role: Delivers jitter-clean, phase-aligned clocks to ADC/DAC, video encoder, and display controller subsystems. Use Value: Achieves <70 ps pk-pk jitter - meets AES11 and SMPTE ST 2059-2 timing stability requirements for professional audio/video. |
| Laser Range Finder Synchronization | Printer/Scanner Engine Control |
Use Scenario: Driving time-of-flight measurement circuitry requiring ultra-stable 100 MHz sampling clock and gated trigger signals. IC Role / Device Role / Timing Role: Generates master sampling clock and precisely delayed auxiliary clocks for pulse generation and echo capture. Use Value: Adjustable output delay and static phase offset enable sub-nanosecond alignment between laser pulse and ADC sampling window. |
Use Scenario: Supplying coordinated clocks to image sensor, motor driver, and print head controller in multifunction peripherals. IC Role / Device Role / Timing Role: Provides asynchronous clocks (e.g., 27 MHz for sensor, 48 MHz for motor, 33.333 MHz for head control) from one IC. Use Value: Eliminates inter-clock skew and reduces EMI from multiple crystal oscillators near sensitive analog imaging paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar clock generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si5351A-B-GT | Same 10-pin MSOP package, identical 3-output configuration, and crystal-only reference - but factory unprogrammed (blank EEPROM) | No preloaded configuration; requires external I²C programming during system bring-up | Select SI5351A-B05830-GT when factory-programmed 3-output timing profile is required for drop-in deployment. |
| Si5351A-B-GM1 | 16-pin QFN package, 4 outputs, same crystal-only architecture - no VCXO or CLKIN support | Higher pin count and output count; requires different PCB layout and thermal management | Choose Si5351A-B-GM1 only if fourth clock output or QFN thermal performance is mandatory. |
Compared with SI5351A-B-GT and Si5351A-B-GM1, the SI5351A-B05830-GT provides guaranteed factory-loaded configuration for immediate operation, retains identical 3-output functionality and MSOP footprint, and avoids QFN assembly complexity - making it optimal for cost-sensitive, space-constrained gateway and consumer AV designs.
Availability
SI5351A-B05830-GT is available at Aetrix Electronics and suitable for residential gateways, audio/video equipment, and laser range finders requiring stable component supply, consistent factory programming, and long-term obsolescence mitigation.
Supply support for SI5351A-B05830-GT 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 semiconductor company specializing in analog and mixed-signal connectivity solutions for wireless, broadband, automotive, and industrial markets.
The Si5351 family was designed to replace discrete timing components - crystals, oscillators, and PLLs - with a single, software-configurable clock generator optimized for cost-sensitive, multi-clock-domain systems.
FAQ
What is the reference clock requirement for SI5351A-B05830-GT?
The SI5351A-B05830-GT requires a 25 MHz or 27 MHz fundamental-mode AT-cut crystal connected across XA and XB pins. It does not accept external CLKIN or VC signals - unlike Si5351B/C variants. The crystal must have ESR ≤150 Ω and drive level ≤100 µW, per Skyworks AN551 recommendations. SI5351A-B05830-GT uses internal load capacitance (configurable 0/6/8/10 pF) to eliminate external caps in most cases.
Does SI5351A-B05830-GT support VCXO or external reference synchronization?
No. SI5351A-B05830-GT is the Si5351A variant and contains only a fixed-frequency crystal oscillator - no VC pin, no CLKIN pin, and no VCXO circuitry. Its tuning is purely digital via I²C-programmed MultiSynth dividers. For voltage-controlled or externally referenced operation, Si5351B or Si5351C variants must be used instead.
What are the valid supply voltage combinations for SI5351A-B05830-GT?
SI5351A-B05830-GT supports core VDD of 2.5 V (±10%) or 3.3 V (±10%), and independent output VDDO rails (VDDOA, VDDOB, VDDOC) each configurable for 1.8 V, 2.5 V, or 3.3 V. All VDDO supplies must be powered before or simultaneously with VDD. Power supply sequencing is mandatory - reverse sequencing risks latch-up or undefined behavior.
Can SI5351A-B05830-GT generate more than two frequencies above 112.5 MHz simultaneously?
No. Per Skyworks datasheet Table 7, SI5351A-B05830-GT supports only two unique frequencies above 112.5 MHz at once - e.g., 125 MHz and 130 MHz. Three distinct frequencies >112.5 MHz (e.g., 125, 130, 150 MHz) violate internal resource allocation and will not function correctly. Duplicate frequencies (e.g., 125 MHz on CLK0 and CLK1) are permitted.
Is SI5351A-B05830-GT pin-compatible with other Si5351A variants in 10-pin MSOP?
Yes. SI5351A-B05830-GT uses the standard Si5351A 10-pin MSOP pinout defined in Skyworks Rev. 1.3 datasheet Section 10.7. It shares identical pin functions, electrical characteristics, and thermal pad layout with SI5351A-B-GT and SI5351A-B-GM - enabling direct PCB substitution where firmware and configuration permit.
SI5351A-B05830-GT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- -
SI5351A-B05830-GT FAQ
1.How can I place an order for SI5351A-B05830-GT through Aetrix?
Please submit a Request for Quotation (RFQ) for SI5351A-B05830-GT 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 SI5351A-B05830-GT reliable?
The price and inventory of SI5351A-B05830-GT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI5351A-B05830-GT is usually 5 days.
3.What payment methods are accepted for SI5351A-B05830-GT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI5351A-B05830-GT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI5351A-B05830-GT?
SI5351A-B05830-GT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI5351A-B05830-GT 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 SI5351A-B05830-GT?
For technical support, including SI5351A-B05830-GT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI5351A-B05830-GT requirements.
6.How does Aetrix verify that SI5351A-B05830-GT is sourced from the original manufacturer or authorized distributors?
All SI5351A-B05830-GT 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 SI5351A-B05830-GT meets industry standards.
7.What is the process for return or replacement of SI5351A-B05830-GT?
All SI5351A-B05830-GT units undergo pre-shipment inspection (PSI). If there is an issue with SI5351A-B05830-GT, 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 SI5351A-B05830-GT part is unused and in its original packaging.
Return procedure for SI5351A-B05830-GT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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