Skyworks Solutions Inc. SI5350A-B05801-GM
- Part No.:
- SI5350A-B05801-GM
- Manufacturer:
- Skyworks Solutions Inc.
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
SI5350A-B05801-GM.pdf
- Description:
- IC ANY FREQ ANY OUT XTAL 20QFN
- Quantity:
- Payment:

- Shipping:

Inventory:1,120
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Product details
Overview
SI5350A-B05801-GM from Skyworks Solutions is a factory-programmed, pin-controlled CMOS clock generator delivering up to 8 independent output frequencies (2.5 kHz–200 MHz) with 0 ppm synthesis error, <70 ps pk-pk period jitter, and configurable spread spectrum on any output. It replaces multiple crystals/XOs in audio/video processors, HDMI interfaces, and Ethernet PHYs using a single 25 or 27 MHz crystal reference.
For engineers reviewing the SI5350A-B05801-GM datasheet, SI5350A-B05801-GM pinout, SI5350A-B05801-GM application, or SI5350A-B05801-GM equivalent, this device supports glitchless frequency switching via FS pins, HCSL-compatible outputs at 2.5 V VDDO, static phase offset control, and independent core/output voltage rails (1.8/2.5/3.3 V).
Technical Context
The SI5350A-B05801-GM implements a dual-PLL + eight fractional MultiSynth™ architecture, enabling simultaneous non-integer-related frequencies per output. Each MultiSynth divider supports two user-configurable frequencies (F1_x/F2_x) selected by FS_0/FS_1 pins for glitchless transitions.
It operates from a fixed 25 or 27 MHz crystal (XA/XB), supports spread spectrum only on PLLA-synchronized outputs, and provides separate VDD (core) and VDDOx (output buffer) supplies for level translation and PSRR optimization without external filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output count | 8 independent CMOS clock outputs (CLK0–CLK7) |
| Frequency range | 2.5 kHz to 200 MHz per output; max two unique frequencies >112.5 MHz simultaneously |
| Period jitter | <70 ps pk-pk (typ), measured across all 8 outputs running at 33.33, 74.25, 27, 24.576, 22.5792, 28.322, 125, and 48 MHz |
| Core supply | 1.8 V / 2.5 V / 3.3 V (±5% to ±10%), with independent VDDOx rails per output group |
| Reference input | 25 MHz or 27 MHz fundamental-mode AT-cut crystal (XA/XB); no external load caps required for 6–10 pF CL |
| Spread spectrum | Selectable per-output: down-spread (–0.1% to –2.5%) or center-spread (±0.1% to ±1.5%) at 30–33 kHz modulation rate |
| Power consumption | 25 mA typ (all 8 outputs enabled), 50 µA in power-down mode (PDN = high) |
Pinout & Package
SI5350A-B05801-GM is packaged in a 20-pin QFN (4 mm × 4 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are validated per Skyworks Rev. 1.2 datasheet Section 7.1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XA, XB | Crytal oscillator inputs | Accept 25 or 27 MHz fundamental-mode crystal; internal 0/6/8/10 pF load capacitance selectable via ClockBuilder Pro |
| CLK0–CLK7 | CMOS clock outputs | Individually configurable frequency, drive strength, invert/non-invert, and spread spectrum; each pair shares VDDOx rail |
| VDDOA–VDDOD | Output buffer supplies | Four independent 1.8/2.5/3.3 V rails: VDDOA (CLK0/1), VDDOB (CLK2/3), VDDOC (CLK4/5), VDDOD (CLK6/7) |
| VDD, GND | Core power and ground | 1.8/2.5/3.3 V core supply; must be powered before or concurrently with all VDDOx rails |
| P0–P4 | Configurable control pins | P0: OEB_0 (output enable for CLK0); P1/P2: OEB_1/OEB_2; P3: SSEN; P4: PDN - all support 0.3×VDD/0.7×VDD logic thresholds |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed configuration | Preloaded with exact frequency plan (SI5350A-B05801-GM), eliminating I²C programming hardware and firmware overhead |
| Glitchless frequency switching | F1_x/F2_x dual-frequency mode on CLK0–CLK2 enables zero-cycle transition between rates (e.g., 74.25 MHz ↔ 74.25/1.001 MHz) via FS_0/FS_1 pins |
| HCSL-compatible outputs | Configurable 2.5 V VDDO + 50 Ω output impedance + complementary inverted clock enables drop-in replacement for HCSL sources (10-MSOP/20-QFN only) |
| Independent voltage domains | Separate VDD (core) and VDDOx (output) rails allow mixed-voltage system interfacing (e.g., 1.8 V core + 3.3 V I/O) without level shifters |
| Low EMI spread spectrum | Per-output spread spectrum with user-selectable deviation (±0.1–1.5%) and fixed 31.5 kHz modulation reduces peak radiated emissions without affecting timing margin |
Applications
| HDMI Audio/Video Processor Timing | Residential Gateway Ethernet PHY Clocking |
|---|---|
Use Scenario: Synchronizing HDMI transmitter (74.25 MHz), audio codec (24.576 MHz), and video processor (48 MHz) in set-top boxes. IC Role / Device Role / Timing Role: Single-chip multi-frequency clock source replacing three discrete XOs and reducing board space by 60%. Use Value: Eliminates inter-clock skew, enables shared crystal reference for deterministic phase relationships, and cuts BOM cost vs. multiple oscillators. |
Use Scenario: Driving 100/1000BASE-T Ethernet PHY (25 MHz), USB 2.0 controller (48 MHz), and CPU (33.333 MHz) in home gateways. IC Role / Device Role / Timing Role: Factory-configured 4-output clock generator with independent VDDO rails for mixed-voltage PHY and controller interfaces. Use Value: Reduces layout complexity by consolidating clocks onto one IC with programmable rise/fall times and <70 ps jitter for clean signal integrity. |
| Printers & Scanners System Clocking | Handheld Instrumentation Signal Generation |
Use Scenario: Providing 27 MHz (image sensor), 22.5792 MHz (audio DAC), and 28.322 MHz (motor controller) in multifunction printers. IC Role / Device Role / Timing Role: Pin-controlled clock generator with FS_0/FS_1 enabling dual-rate operation for variable-speed scanning modes. Use Value: Glitchless frequency switching allows real-time adjustment of scan resolution without system reset or clock interruption. |
Use Scenario: Generating precise test tones (125 MHz sampling clock, 24.576 MHz DAC reference, 48 MHz MCU clock) in portable oscilloscopes. IC Role / Device Role / Timing Role: Low-jitter, factory-programmed clock source with spread spectrum disabled for measurement-grade stability. Use Value: <40 ps pk-pk period jitter (4-output config) ensures sub-LSB timing accuracy in high-resolution ADC/DAC paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar clock generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si5350A-B05802-GM | Same 20-QFN package and 8-output architecture, but factory-programmed for 27 MHz crystal reference (vs. 25 MHz for SI5350A-B05801-GM) | Requires 27 MHz crystal; not interchangeable without crystal change and revalidation of load capacitance | Select when 27 MHz XTAL is already used in design or preferred for lower phase noise at higher frequencies |
| Si5351A-B-GM | I²C-programmable (not factory-programmed), 8-output, same frequency range but higher typical period jitter (95 ps pk-pk vs. 70 ps) | Suitable for prototyping or field-upgradable systems; requires microcontroller I²C interface and configuration firmware | Choose for flexibility in frequency tuning post-deployment, accepting higher jitter and added software complexity |
Compared with SI5350A-B05801-GM, Si5350A-B05802-GM offers identical performance with a different crystal frequency, while Si5351A-B-GM trades factory simplicity for runtime programmability and slightly degraded jitter - making SI5350A-B05801-GM optimal for cost-sensitive, high-volume production where fixed timing is verified.
Availability
SI5350A-B05801-GM is available at Aetrix Electronics and suitable for HDMI transceivers, residential gateways, and printer/scanner systems requiring stable component supply, long-term lifecycle support, and factory-verified timing accuracy.
Supply support for SI5350A-B05801-GM 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, and timing markets.
The Si5350A family delivers factory-programmed, low-jitter clock generation for cost-sensitive consumer and networking applications - designed to replace multiple crystals and oscillators with a single configurable IC.
FAQ
What crystal frequency does SI5350A-B05801-GM require?
SI5350A-B05801-GM is factory-programmed for use with a 25 MHz fundamental-mode AT-cut crystal connected to XA/XB pins. The device's internal load capacitance (6/8/10 pF) eliminates need for external capacitors unless the crystal specifies 12 pF CL, in which case ≤2 pF external caps are added. Operation with 27 MHz crystals requires a different part number (e.g., SI5350A-B05802-GM).
Does SI5350A-B05801-GM support HCSL-compatible outputs?
Yes, SI5350A-B05801-GM supports HCSL-compatible swing when configured with 2.5 V on the relevant VDDO rail (e.g., VDDOA = 2.5 V for CLK0/CLK1) and paired with an external 511 Ω pull-up and 240 Ω termination resistor per output. This capability is validated for the 20-QFN package and requires one output in each pair to be inverted via ClockBuilder Pro configuration.
How many frequencies can SI5350A-B05801-GM generate above 112.5 MHz simultaneously?
SI5350A-B05801-GM can output no more than two *unique* frequencies above 112.5 MHz at once - for example, 125 MHz on CLK0 and 130 MHz on CLK1 is permitted, but adding 150 MHz on CLK2 violates the specification. Multiple outputs may replicate the same high-frequency signal (e.g., 125 MHz on CLK0–CLK3), preserving timing consistency across parallel data paths.
What is the power-down current of SI5350A-B05801-GM?
When the PDN pin is driven high, SI5350A-B05801-GM enters full power-down mode with a maximum supply current of 50 µA. This state disables all PLLs, MultiSynths, and outputs while retaining factory-programmed configuration. Power-up time from PDN assertion to valid clock output is ≤10 ms (typical 2 ms) per Table 5 in the datasheet.
Can SI5350A-B05801-GM generate different frequencies on CLK0 and CLK1 with glitchless switching?
Yes, SI5350A-B05801-GM supports glitchless frequency switching on CLK0 and CLK1 using the FS_0 and FS_1 pins. Each output is preconfigured with two frequencies (F1_x/F2_x) during factory programming; asserting FS_0 low selects F1_0 on CLK0, while driving it high selects F2_0 - with zero-cycle transition and no runt pulses or phase discontinuity.
SI5350A-B05801-GM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 20-VFQFN Exposed Pad
- Packaging:
- Strip
- 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:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 20-QFN (4x4)
SI5350A-B05801-GM FAQ
1.How can I place an order for SI5350A-B05801-GM through Aetrix?
Please submit a Request for Quotation (RFQ) for SI5350A-B05801-GM 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 SI5350A-B05801-GM reliable?
The price and inventory of SI5350A-B05801-GM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI5350A-B05801-GM is usually 5 days.
3.What payment methods are accepted for SI5350A-B05801-GM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI5350A-B05801-GM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI5350A-B05801-GM?
SI5350A-B05801-GM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI5350A-B05801-GM 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 SI5350A-B05801-GM?
For technical support, including SI5350A-B05801-GM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI5350A-B05801-GM requirements.
6.How does Aetrix verify that SI5350A-B05801-GM is sourced from the original manufacturer or authorized distributors?
All SI5350A-B05801-GM 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 SI5350A-B05801-GM meets industry standards.
7.What is the process for return or replacement of SI5350A-B05801-GM?
All SI5350A-B05801-GM units undergo pre-shipment inspection (PSI). If there is an issue with SI5350A-B05801-GM, 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 SI5350A-B05801-GM part is unused and in its original packaging.
Return procedure for SI5350A-B05801-GM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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