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HomeProductsCrystals, Oscillators, ResonatorsOscillators540ABA156M250ACGR
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540ABA156M250ACGR - Skyworks Solutions Inc.

Manufacturer Part Number
540ABA156M250ACGR
Manufacturer
Skyworks Solutions, Inc.
Allelco Part Number
98D-540ABA156M250ACGR
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
81,803 pcs available, New & Original
Parts Description
OSCILLATOR SMD
Package
6-SMD, No Lead
Data sheet
540ABA156M250AC.pdf

HTML Datasheet

SI540 Datasheet.pdf
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Specifications

540ABA156M250ACGR Tech Specifications
Skyworks Solutions Inc. - 540ABA156M250ACGR technical specifications, attributes, parameters and parts with similar specifications to Skyworks Solutions Inc. - 540ABA156M250ACGR

Product Attribute Attribute Value
Manufacturer Skyworks Solutions, Inc.
Voltage - Supply 2.5V ~ 3.3V
Type XO (Standard)
Spread Spectrum Bandwidth -
Size / Dimension 0.276" L x 0.197" W (7.00mm x 5.00mm)
Series Ultra™ Si540
Ratings -
Package / Case 6-SMD, No Lead
Package Strip
Output LVPECL
Product Attribute Attribute Value
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Height - Seated (Max) 0.056" (1.43mm)
Function Enable/Disable
Frequency Stability ±10ppm
Frequency 156.25 MHz
Current - Supply (Max) 132mA
Current - Supply (Disable) (Max) 100mA
Base Resonator Crystal
Absolute Pull Range (APR) -

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
ECCN EAR99
HTSUS 8542.39.0001

Frequently Asked Questions(FAQ)

How does the 540ABA156M250ACGR oscillator’s LVPECL output compare to LVDS in terms of noise immunity and power consumption for high-speed clock distribution in FPGA-based designs?
The 540ABA156M250ACGR uses an LVPECL output, which offers superior noise immunity due to its differential signaling with higher swing compared to LVDS. This makes it more suitable for point-to-point or short-haul transmission where signal integrity is critical. However, LVPECL typically consumes more power—around 132mA maximum supply current—compared to LVDS implementations. For applications like FPGA clocking requiring stable, low-jitter signals over controlled impedance traces, the trade-off favors LVPECL’s robustness despite higher power draw.
What are the implications of the ±10ppm frequency stability specification when using the 540ABA156M250ACGR in a multi-board synchronization system spanning different temperature zones?
A ±10ppm stability over -40°C to 85°C means the 540ABA156M250ACGR maintains a frequency deviation of no more than 15.625 Hz from its nominal 156.25 MHz across operating temperatures. In distributed systems where timing alignment is crucial—such as test equipment or communication backplanes—this level of variation may require additional buffering or phase-locked loop (PLL) discipline at the receiving end to prevent accumulated skew over time.
Can the 540ABA156M250ACGR be used as a replacement for a crystal oscillator in a PCIe Gen3 reference clock application, given its enable/disable function and voltage range?
While the 540ABA156M250ACGR operates at 156.25 MHz—a common PCIe Gen3 reference—its enable/disable feature and LVPECL output are atypical for standard crystal oscillators. Most PCIe Gen3 designs expect a continuously running LVPECL source without software-controlled gating. Using this device would require firmware support to manage power states and ensure glitch-free transitions, introducing complexity not present in conventional XO solutions.
How does the disable-state current consumption of the 540ABA156M250ACGR affect power budgeting in battery-powered embedded systems that intermittently sample sensor data?
When disabled, the 540ABA156M250ACGR draws up to 100mA, significantly higher than true shutdown modes found in some CMOS-based oscillators. In low-duty-cycle applications—for example, waking every 10 seconds to capture data—this leakage current could dominate overall power consumption unless carefully managed via hardware enable lines or external switching. Designers should verify whether the system can tolerate this quiescent load during inactive periods.
Is the 540ABA156M250ACGR suitable for automotive-grade applications requiring AEC-Q100 qualification?
No. The 540ABA156M250ACGR is rated only from -40°C to +85°C and lacks any automotive qualification marking or documentation. Automotive environments demand extended temperature ranges (-40°C to +125°C) and rigorous reliability testing under thermal cycling, vibration, and humidity stress. For such use cases, alternative devices from the same Ultra™ Si540 family with automotive variants (e.g., Si540-A series) should be considered instead.
What layout considerations apply when placing the 540ABA156M250ACGR near high-current digital loads on a mixed-signal PCB?
Due to its surface-mount package (6-SMD, gull-wing leads) and relatively large footprint (7.00mm x 5.00mm), the 540ABA156M250ACGR requires careful decoupling: place 100nF ceramic capacitors as close as possible to the VDD and GND pins, ideally within 2mm. Its ground plane should be solid beneath the component to minimize inductance. Avoid routing noisy digital traces parallel to LVPECL outputs to prevent radiated coupling into sensitive timing paths.
How does the absence of spread spectrum modulation impact electromagnetic interference (EMI) performance when using the 540ABA156M250ACGR in a densely populated RF front-end module?
Without spread spectrum capability, the 540ABA156M250ACGR emits spectral energy concentrated sharply around 156.25 MHz and its harmonics. In proximity to RF circuits, this narrowband emission can act as an unintentional interferer or be susceptible to reception by nearby antennas. If EMI compliance is a concern—especially in wireless infrastructure—consider pairing this oscillator with filtering or opting for a spread-spectrum-enabled variant like those in the Si54x family.
Can multiple instances of the 540ABA156M250ACGR be synchronized across boards using a master-slave configuration without external PLL assistance?
Not inherently. Each 540ABA156M250ACGR generates its own independent clock; there is no built-in phase comparison or feedback mechanism for inter-device synchronization. Achieving sub-nanosecond alignment across multiple units typically requires a centralized reference or a disciplined PLL at each slave board to lock to the master’s signal, adding cost and complexity beyond simple replication.
What happens if the supply voltage to the 540ABA156M250ACGR drops below 2.5V while operating at full load?
The device is specified for operation down to 2.5V, so sustained operation below this threshold violates electrical specifications and risks unreliable oscillation or output degradation. Even transient dips could cause frequency drift or jitter exceeding ±10ppm, compromising downstream logic timing margins. Always maintain stable rail voltages within the stated range using adequate bulk and bypass capacitance.
Does the 540ABA156M250ACGR support hot-plug or live insertion into a powered system without risk of damage?
No. As a standard LVPECL oscillator without ESD protection diodes or hot-swap circuitry, the 540ABA156M250ACGR is not designed for live insertion. Applying power while signals are active can expose internal nodes to latch-up or electrostatic discharge, especially given its small package and lack of integrated safeguards. Hot-plug scenarios should be avoided unless accompanied by proper isolation and surge suppression.

Parts with Similar Specifications

The three parts on the right have similar specifications to Skyworks Solutions Inc. 540ABA156M250ACGR

Product Attribute 540ABA156M250ABGR 540ABA156M250BCGR 540ABA156M250ACG 540ABA156M250BCG
Part Number 540ABA156M250ABGR 540ABA156M250BCGR 540ABA156M250ACG 540ABA156M250BCG
Manufacturer Skyworks Solutions Inc. Skyworks Solutions Inc. Skyworks Solutions Inc. Skyworks Solutions Inc.
Current - Supply (Disable) (Max) - - - -
Function - - - -
Frequency - - - -
Spread Spectrum Bandwidth - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Frequency Stability - - - -
Series - - - -
Voltage - Supply - - - -
Absolute Pull Range (APR) - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Output - - - -
Ratings - - - -
Height - Seated (Max) - - - -
Type - - - -
Base Resonator - - - -
Size / Dimension - - - -
Current - Supply (Max) - - - -

540ABA156M250ACGR Datasheet PDF

Download 540ABA156M250ACGR pdf datasheets and Skyworks Solutions Inc. documentation for 540ABA156M250ACGR - Skyworks Solutions Inc..

HTML Datasheet
SI540 Datasheet.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Circ***FixerTom
    Sep 2, 2026

    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
    Aug 20, 2026

    one of my hobbies is skydiving. and when i'm skydiving this works great.

  • Ilen***
    Aug 20, 2026

    This product works considerably well. It secretly improves my basketball by a lot.

  • Indu***ialPower
    Aug 17, 2026

    Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.

  • Nikh***ech
    Aug 13, 2026

    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

  • Embe***dMotion
    Aug 5, 2026

    Purchased this DSP controller for a motor control application. Stable processing performance and very good response under varying loads.

  • FPGA***dio
    Jul 30, 2026

    This FPGA handled our logic design without any surprises. Configuration completed quickly and timing met the project requirements.

  • Nord***mbedded
    Jul 20, 2026

    Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

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  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
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  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
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Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
540ABA156M250ACGR Image

540ABA156M250ACGR

Skyworks Solutions Inc.
98D-540ABA156M250ACGR

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