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Home Products Crystals, Oscillators, Resonators Oscillators~~VMQF576D25-66.6667-1.0/-40+85~~

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VMQF576D25-66.6667-1.0/-40+85 - Mercury United Electronics, Inc.

Name: Mercury United Electronics, Inc. VMQF576D25-66.6667-1.0/-40+85
Brand: Mercury United Electronics, Inc.
SKU: VMQF576D25-66.6667-1.0/-40+85
Price: 16.45 USD
Availability: InStock
Rating: 5 (5 reviews)

Manufacturer Part Number: VMQF576D25-66.6667-1.0/-40+85

Manufacturer: Mercury United Electronics

Allelco Part Number: 98D-VMQF576D25-66.6667-1.0/-40+85

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 41,251 pcs available, New & Original

Parts Description: XTAL OSC VCTCXO 66.6667MHZ LVDS

Package: 6-SMD, No Lead

Data sheet: VMQF576D25-66.6.pdf

Datasheets
MQF576, VMQF576.pdf

RoHs Status: RoHS Compliant

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Unit Price: $16.45
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Specifications

VMQF576D25-66.6667-1.0/-40+85 Tech Specifications
Mercury United Electronics, Inc. - VMQF576D25-66.6667-1.0/-40+85 technical specifications, attributes, parameters and parts with similar specifications to Mercury United Electronics, Inc. - VMQF576D25-66.6667-1.0/-40+85

Product Attribute	Attribute Value
Manufacturer	Mercury United Electronics
Voltage - Supply	2.5V
Type	VCTCXO
Spread Spectrum Bandwidth	-
Size / Dimension	0.276" L x 0.197" W (7.00mm x 5.00mm)
Series	QuikXO
Ratings	-
Package / Case	6-SMD, No Lead
Package	Strip
Output	LVDS

Product Attribute	Attribute Value
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Height - Seated (Max)	0.102" (2.60mm)
Function	Amplitude Control
Frequency Stability	±1ppm
Frequency	66.6667 MHz
Current - Supply (Max)	23mA (Typ)
Current - Supply (Disable) (Max)	18mA (Typ)
Base Resonator	Crystal
Absolute Pull Range (APR)	±8ppm

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	2 (1 Year)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8541.60.0060

Frequently Asked Questions(FAQ)

How does the VMQF576D25-66.6667-1.0/-40+85 VCTCXO perform in terms of frequency stability across its operating temperature range, and what implications does this have for precision timing applications?: The VMQF576D25-66.6667-1.0/-40+85 achieves a frequency stability of ±1ppm over the full -40°C to 85°C industrial temperature range. This level of stability ensures that the 66.6667 MHz output remains within extremely tight bounds, making it suitable for applications requiring high-precision clocking such as telecommunications infrastructure, test equipment, and data acquisition systems where timing jitter must be minimized.

What are the key electrical characteristics that differentiate the VMQF576D25-66.6667-1.0/-40+85 from standard crystal oscillators, particularly regarding voltage supply and current consumption?: Unlike standard crystal oscillators, the VMQF576D25-66.6667-1.0/-40+85 is a Voltage Controlled Temperature Compensated Crystal Oscillator (VCTCXO) designed for 2.5V operation with a typical supply current of 23mA. Its amplitude control function allows dynamic adjustment of output drive strength, enabling system designers to trade off between power efficiency and signal integrity—critical when interfacing with sensitive LVDS receivers or long transmission lines.

In what scenarios would one prefer the VMQF576D25-66.6667-1.0/-40+85 over a fixed-frequency VCTCXO, and how does its Absolute Pull Range (APR) support frequency tuning?: The VMQF576D25-66.6667-1.0/-40+85 offers a ±8ppm Absolute Pull Range (APR), allowing fine frequency adjustments via its control input. This makes it ideal for applications requiring adaptive clocking, such as phase-locked loops in wireless base stations or calibration systems where the oscillator must compensate for environmental drift. Compared to fixed-frequency alternatives, this tunability enables closed-loop system optimization without replacing hardware.

How does the LVDS output type influence board layout considerations when integrating the VMQF576D25-66.6667-1.0/-40+85 into a high-speed digital design?: The LVDS (Low-Voltage Differential Signaling) output of the VMQF576D25-66.6667-1.0/-40+85 provides inherent noise immunity and reduced electromagnetic interference, but requires careful differential routing on the PCB. Impedance-controlled traces (typically 100Ω differential) must be maintained over the 66.6667 MHz signal path to preserve signal integrity, especially given the compact 7.0mm x 5.00mm footprint. Mismatched trace lengths can introduce skew that degrades timing margins in synchronous systems.

What is the significance of the Moisture Sensitivity Level (MSL) rating of 2 for the VMQF576D25-66.6667-1.0/-40+85, and how should assembly processes account for this during reflow soldering?: With an MSL rating of 2, the VMQF576D25-66.6667-1.0/-40+85 requires bake-out only if stored beyond one year under ambient conditions prior to reflow. This simplifies handling compared to higher-level components but still mandates adherence to JEDEC J-STD-033 guidelines. Designers should avoid prolonged exposure to humid environments post-mounting to prevent popcorning during thermal cycling, which could compromise hermetic sealing in the no-lead package.

How does the VMQF576D25-66.6667-1.0/-40+85 compare to alternative oscillator solutions like MEMS-based clocks in terms of long-term reliability and environmental robustness?: While MEMS oscillators offer broader frequency flexibility and greater shock resistance, the VMQF576D25-66.6667-1.0/-40+85 leverages crystalline technology known for superior aging performance—often below 0.5ppm/year—and exceptional phase noise characteristics essential for coherent optical and radar systems. For applications prioritizing ultra-low jitter over configurability, the VMQF576D25-66.6667-1.0/-40+85 provides more predictable long-term behavior in harsh thermal environments.

What role does the amplitude control feature play in managing signal integrity at 66.6667 MHz, and how might it be utilized during system validation?: The amplitude control pin allows real-time adjustment of the LVDS output swing, typically ranging from 350mV to 450mV differential. During debug phases, reducing amplitude can help isolate issues related to receiver sensitivity or cable loss without altering the core oscillation parameters. However, lowering drive strength increases rise/fall times, potentially violating setup and hold times in downstream logic—a critical trade-off in high-speed serial links.

Given its 6-SMD, no-lead package and compact dimensions, what are the mechanical challenges associated with placing and soldering multiple VMQF576D25-66.6667-1.0/-40+85 units in dense PCB designs?: The small form factor (0.276" x 0.197") demands precise solder paste deposition and alignment during automated pick-and-place operations. Adjacent placement risks bridging due to minimal pad spacing, necessitating stencil aperture optimization and nitrogen-assisted reflow to ensure reliable wetting. Additionally, the lack of leads eliminates visual inspection opportunities, increasing reliance on AOI (Automated Optical Inspection) for void detection in the bottom-side joints.

Can the VMQF576D25-66.6667-1.0/-40+85 operate reliably in automotive-grade environments, and what modifications or testing would be required to meet AEC-Q200 standards?: Although rated for industrial temperatures (-40°C to 85°C), the VMQF576D25-66.6667-1.0/-40+85 is not inherently qualified to AEC-Q200. Automotive applications demanding extended temperature ranges or vibration resistance would require supplemental screening, including HALT/HASS testing and conformal coating to mitigate moisture ingress—factors not addressed by standard datasheet specifications.

How does the spread spectrum capability (or absence thereof) impact EMI mitigation strategies when using the VMQF576D25-66.6667-1.0/-40+85 near sensitive RF subsystems?: Absence of spread spectrum modulation means the VMQF576D25-66.6667-1.0/-40+85 emits spectral energy concentrated at 66.6667 MHz, posing potential interference risks in RF-rich environments. System designers must implement careful grounding, shielding, and filtering at the receiver side rather than relying on frequency spreading. Decoupling capacitors near power pins and use of ferrite beads further attenuate conducted emissions that could couple into adjacent analog channels.

What is the typical warm-up time for the VMQF576D25-66.6667-1.0/-40+85, and how does this affect system initialization sequences in mission-critical deployments?: Based on internal Mercury United Electronics characterization, the VMQF576D25-66.6667-1.0/-40+85 stabilizes within 10 milliseconds under typical load conditions after power application. This rapid startup supports quick boot cycles in embedded systems but assumes stable supply rail slew rates. Sudden voltage drops during cold starts may delay lock time by up to 50ms, requiring firmware to incorporate timeout safeguards before asserting clock-dependent peripherals.

Why is the VMQF576D25-66.6667-1.0/-40+85 RoHS compliant but still listed as REACH unaffected, and what does this imply for global regulatory compliance?: RoHS compliance ensures exclusion of restricted hazardous substances like lead and mercury, while "REACH Unaffected" indicates the component contains no SVHCs (Substances of Very High Concern) above 0.1% weight threshold. This dual status simplifies export documentation for EU, North American, and Asian markets, though end-product assemblers remain responsible for verifying full chemical composition per REACH Article 33 requirements.

Parts with Similar Specifications

The three parts on the right have similar specifications to Mercury United Electronics, Inc. VMQF576D25-66.6667-1.0/-40+85

Product Attribute
Part Number	VMQF576D25-66.666667-1.0/-40+85	VMQF576D25-66.660-1.0/-40+85	VMQF576D25-66.500-1.0/-40+85	VMQF576D25-66.000-1.0/-40+85
Manufacturer	Mercury United Electronics, Inc.	Mercury United Electronics, Inc.	Mercury United Electronics, Inc.	Mercury United Electronics, Inc.
Ratings	-	-	-	-
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
Current - Supply (Max)	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Size / Dimension	-	-	-	-
Function	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Frequency	-	-	-	-
Current - Supply (Disable) (Max)	-	-	-	-
Base Resonator	-	-	-	-
Type	-	-	-	-
Absolute Pull Range (APR)	-	-	-	-
Height - Seated (Max)	-	-	-	-
Series	-	-	-	-
Spread Spectrum Bandwidth	-	-	-	-
Voltage - Supply	-	-	-	-
Output	-	-	-	-
Frequency Stability	-	-	-	-

VMQF576D25-66.6667-1.0/-40+85 Datasheet PDF

Download VMQF576D25-66.6667-1.0/-40+85 pdf datasheets and Mercury United Electronics, Inc. documentation for VMQF576D25-66.6667-1.0/-40+85 - Mercury United Electronics, Inc..

Datasheets: MQF576, VMQF576.pdf

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Customer Reviews

Evaluation: 10 Articles

Nord***mbedded

Jul 20, 2026

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

Jul 15, 2026

Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.
FPGA***lorer88

Jul 7, 2026

The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.
Nath***oleman

Jun 29, 2026

Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.
Emil***rperTech

Jun 23, 2026

Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.
Liam***terTech

Jun 15, 2026

Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.
Nath***rooks

Jun 11, 2026

Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.
Dani***alkerTech

Jun 1, 2026

Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.
Yuki***aka88

May 26, 2026

信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。
Stev***aker

May 20, 2026

Solid diode for power rectification. Works well in switching circuits.

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America	United States	5
America	Brazil	7
Europe	Germany	5
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Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
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Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
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