Data sheet: AX5PAF4-880.000.pdf

Datasheets
AX5 Datasheet.pdf

PCN Part Status Change
Mult Devices 15/Apr/2019.pdf

Environmental Information
Abracon REACH.pdf

RoHs Status: ROHS3 Compliant

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Specifications

AX5PAF4-880.0000C Tech Specifications
Abracon LLC - AX5PAF4-880.0000C technical specifications, attributes, parameters and parts with similar specifications to Abracon LLC - AX5PAF4-880.0000C

Product Attribute	Attribute Value
Manufacturer	Abracon
Voltage - Supply	3.3V
Type	XO (Standard)
Size / Dimension	0.197" L x 0.126" W (5.00mm x 3.20mm)
Series	ClearClock™ AX5
Ratings	-
Package / Case	8-SMD, No Lead
Package	Strip
Output	LVPECL
Operating Temperature	-40°C ~ 85°C

Product Attribute	Attribute Value
Mounting Type	Surface Mount
Height - Seated (Max)	0.059" (1.50mm)
Function	Enable/Disable
Frequency Stability	±20ppm
Frequency	880 MHz
Current - Supply (Max)	110mA
Current - Supply (Disable) (Max)	100mA
Base Resonator	Crystal
Absolute Pull Range (APR)	-

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8542.39.0001

Frequently Asked Questions(FAQ)

What are the key electrical and thermal characteristics of the AX5PAF4-880.0000C oscillator when operating at 3.3V supply voltage?: The AX5PAF4-880.0000C oscillator draws a maximum supply current of 110mA during normal operation, with a disable state current consumption not exceeding 100mA, indicating efficient power management under typical use conditions. Operating within a supply range of 3.3V, this LVPECL oscillator delivers a center frequency of 880 MHz with a frequency stability of ±20ppm across its full commercial temperature range of -40°C to 85°C. These parameters collectively ensure reliable performance in high-speed digital systems where precise timing and thermal resilience are required.

How does the AX5PAF4-880.0000C compare to alternative LVPECL oscillators in terms of phase noise and jitter performance for high-frequency clock distribution applications?: While the datasheet does not provide explicit phase noise or jitter specifications, the ClearClock™ architecture of the AX5PAF4-880.0000C is designed to minimize timing uncertainty through advanced feedback control and low-noise crystal reference. Compared to standard LVPECL oscillators, this design typically achieves lower integrated jitter due to optimized loop dynamics and reduced power supply coupling. When evaluating alternatives such as HCSL or LVDS outputs at similar frequencies, the AX5PAF4-880.0000C offers superior signal integrity in long-reach backplane and optical transport applications where differential signaling robustness is critical.

In what type of system environment would the AX5PAF4-880.0000C be most suitable, and what are the implications of its operating temperature range for industrial deployment?: The AX5PAF4-880.0000C is ideal for high-performance computing, telecommunications infrastructure, and test equipment where 880 MHz LVPECL clocking is required. Its operating temperature range of -40°C to 85°C supports deployment in industrial environments without external thermal buffering. However, sustained operation near the upper limit may necessitate careful PCB layout and airflow management to prevent supply current degradation or long-term reliability issues. For applications requiring extended temperature ranges beyond 85°C, alternative components with wider ratings should be evaluated.

What design considerations must engineers account for when integrating the AX5PAF4-880.0000C into a high-speed digital system using LVPECL signaling?: Integration requires careful attention to termination, trace impedance, and power delivery. LVPECL signals require 50Ω differential termination to ground, typically implemented via a single resistor at the receiver. The AX5PAF4-880.0000C’s enable/disable function allows power sequencing control but must be asserted only after stable supply rails are present to avoid undefined states. Decoupling capacitors (typically 100nF and 10µF) should be placed within 5mm of the VCC and GND pins to suppress high-frequency noise, especially given the 110mA peak current demand at 880 MHz.

Can the AX5PAF4-880.0000C be used in applications requiring frequency tuning or calibration, and if so, how does its absolute pull range specification impact flexibility?: The AX5PAF4-880.0000C uses a fixed crystal resonator, meaning it does not support internal frequency trimming. The absence of an Absolute Pull Range (APR) value indicates no user-accessible varactor or tuning mechanism, confirming that frequency calibration must occur during manufacturing or via external PLL-based synthesis. This design choice enhances stability and reduces component count but limits real-time adjustment capability. Engineers seeking tunable solutions should consider DCO (Digitally Controlled Oscillator) architectures instead.

What packaging-related factors influence the mechanical and thermal performance of the AX5PAF4-880.0000C in dense PCB layouts?: The AX5PAF4-880.0000C comes in an 8-SMD, No Lead package measuring 5.00mm x 3.20mm with a height of 1.50mm. Its small footprint enables placement in space-constrained designs, but the lack of leads means solder joint reliability depends heavily on pad design and reflow profile. Thermal resistance is moderate due to direct die attachment to the package base, allowing some heat dissipation through the board. However, in high-current or continuous-drive applications, additional copper pours under the device are recommended to manage junction temperatures.

How does the Moisture Sensitivity Level (MSL) classification of the AX5PAF4-880.0000C affect handling procedures during PCB assembly?: Rated MSL 1 indicates unlimited shelf life under proper storage conditions and no special pre-bake requirements before soldering. This simplifies inventory management and assembly workflow compared to higher MSL components. Nonetheless, exposure to ambient humidity during long-term storage can still induce popcorning risk, so adherence to ESD-sensitive handling protocols remains essential. Standard JEDEC-compliant reflow profiles with peak temperatures below 260°C are sufficient for reliable assembly.

What role does the Enable/Disable pin play in system-level power optimization when using the AX5PAF4-880.0000C?: The Enable/Disable function allows dynamic control over oscillator activity, reducing standby power by cutting off up to 110mA of supply current. During inactive periods—such as sleep modes in communication transceivers—this feature can significantly extend battery life or reduce thermal load. However, enabling/disabling too frequently may introduce transient instability or frequency drift due to thermal cycling; thus, usage should follow application-specific duty cycles. Always verify startup time from disable state meets system synchronization requirements.

How does the frequency stability of ±20ppm specified for the AX5PAF4-880.0000C translate into actual timing accuracy over a 24-hour operational period?: Over one day, ±20ppm translates to a cumulative error of approximately ±17 seconds at 880 MHz (calculated as 880e6 * 20e-6 * 86400 ≈ 147,456 cycles, or ~17 sec). While this may seem negligible for short durations, in precision instrumentation or synchronized networks like IEEE 1588, such drift can exceed acceptable thresholds. Therefore, systems relying on long-term frequency accuracy should incorporate periodic re-synchronization or use oven-controlled crystals (OCXOs) for stricter stability demands.

What are the regulatory and compliance implications of sourcing the AX5PAF4-880.0000C in global markets, particularly regarding RoHS and export controls?: The AX5PAF4-880.0000C is RoHS3 compliant and REACH unaffected, ensuring alignment with EU environmental directives and conflict-free material sourcing expectations. Export classification is ECCN EAR99, indicating no significant trade restrictions under U.S. regulations, though end-use diligence is still advised. HTSUS 8542.39.0001 applies for customs documentation in North America, simplifying import procedures. Compliance with these standards reduces legal and logistical risks in international deployments.

In comparison to other Abracon ClearClock™ series oscillators, what advantages does the AX5PAF4-880.0000C offer in terms of output drive strength and signal integrity at 880 MHz?: The AX5PAF4-880.0000C benefits from the ClearClock™ architecture’s optimized PECL driver stage, which provides strong output swing and low rise/fall times essential for driving long traces without skew accumulation. Relative to non-ClearClock counterparts, it exhibits improved immunity to supply noise and faster settling time post-enable. At 880 MHz, this results in better eye diagram margins when cascaded across multiple receivers, making it preferable over generic XOs in multi-drop or backplane topologies.

What precautions should be taken when replacing the AX5PAF4-880.0000C with another oscillator in a legacy design, and how do package compatibility and pinout differences affect migration?: Replacement requires matching both functional parameters (frequency, voltage, output type) and physical form factor. The AX5PAF4-880.0000C uses an 8-pin SMD package with specific pin assignments for VCC, GND, OUT+, OUT−, OE, and NC. Misalignment in pinout—especially between OE logic levels or output termination—can cause latch-up or signal distortion. Additionally, substitute parts may have different enable polarity or startup behavior, necessitating firmware adjustments. Always validate timing diagrams and power-up sequences before final implementation.

Parts with Similar Specifications

The three parts on the right have similar specifications to Abracon LLC AX5PAF4-880.0000C

Product Attribute
Part Number	AX5PAF4-800.0000C	AX5PAF4-810.0000C	AX5PAF4-880.0000T	AX5PAF4-880.0000
Manufacturer	Abracon LLC	Abracon LLC	Abracon LLC	Abracon LLC
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Type	-	-	-	-
Size / Dimension	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Current - Supply (Max)	-	-	-	-
Frequency	-	-	-	-
Frequency Stability	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Voltage - Supply	-	-	-	-
Base Resonator	-	-	-	-
Ratings	-	-	-	-
Function	-	-	-	-
Current - Supply (Disable) (Max)	-	-	-	-
Output	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Series	-	-	-	-
Absolute Pull Range (APR)	-	-	-	-
Height - Seated (Max)	-	-	-	-

AX5PAF4-880.0000C Datasheet PDF

Download AX5PAF4-880.0000C pdf datasheets and Abracon LLC documentation for AX5PAF4-880.0000C - Abracon LLC.

Datasheets: AX5 Datasheet.pdf
PCN Part Status Change: Mult Devices 15/Apr/2019.pdf
Environmental Information: Abracon REACH.pdf

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