Data sheet: AX5PAF4-915.000.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

AX5PAF4-915.0000C Tech Specifications
Abracon LLC - AX5PAF4-915.0000C technical specifications, attributes, parameters and parts with similar specifications to Abracon LLC - AX5PAF4-915.0000C

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	915 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)

How does the AX5PAF4-915.0000C perform in high-temperature industrial environments, and what stability considerations apply when operating near its maximum temperature rating?: The AX5PAF4-915.0000C is specified for operation from -40°C to 85°C, making it suitable for most industrial applications without active thermal management. However, frequency stability remains at ±20ppm across this range, so designers should account for potential drift under sustained high-load conditions or localized hot spots. In systems where precise timing is critical, such as in RF synchronization networks, periodic calibration may be necessary if the oscillator operates consistently near 85°C.

What are the power implications of enabling versus disabling the AX5PAF4-915.0000C, and how does this impact system-level current budgeting in battery-powered or space-constrained designs?: When enabled, the AX5PAF4-915.0000C draws up to 110mA at 3.3V, which can significantly affect total power consumption in low-power embedded systems. When disabled, supply current drops to a maximum of 100mA—still non-negligible compared to truly shutdown states found in some clock generators. Designers must weigh the benefit of dynamic enable/disable against leakage penalties, especially in applications like IoT sensors or portable medical devices where every mA matters.

Can the AX5PAF4-915.0000C be used as a timing source for IEEE 802.15.4-based wireless modules, and what layout precautions are essential to maintain signal integrity?: Yes, the AX5PAF4-915.0000C’s 915 MHz output aligns well with IEEE 802.15.4 UWB channels, particularly those used in Zigbee and Thread protocols. However, LVPECL signals require careful impedance control and minimal trace length on the PCB due to their differential nature and high swing. Keep traces short (<10 mm), route differentially with matched lengths, and use ground planes beneath to reduce EMI—failure to do so can cause phase noise degradation and spurious emissions that interfere with adjacent RF chains.

How does frequency stability compare between the AX5PAF4-915.0000C and alternative 915 MHz oscillators from competitors, especially in scenarios involving rapid ambient temperature changes?: With a stated stability of ±20ppm over -40°C to 85°C, the AX5PAF4-915.0000C offers standard-grade performance typical of commercial crystal oscillators. Compared to oven-controlled oscillators (OCXOs) or TCXOs with sub-±1 ppm stability, it trades off precision for cost and footprint. For applications requiring tighter holdover after power loss—such as cellular base stations—this device may not suffice; however, for most sensor networks or asset tracking tags, its stability is adequate given environmental controls and system tolerance margins.

Is the AX5PAF4-915.0000C suitable for use in automotive infotainment systems that must comply with AEC-Q100, and what modifications might be needed?: The AX5PAF4-915.0000C is not inherently qualified per AEC-Q100, as indicated by its lack of automotive-specific ratings in the datasheet. While its operating temperature range overlaps with many automotive grades, additional reliability testing and certification would be required for production deployment in vehicles. Designers considering this part for automotive use should verify qualification status with Abracon and evaluate whether alternative components with explicit AEC compliance offer better long-term supply assurance and failure mode coverage.

What happens to output waveform quality when driving multiple LVPECL loads simultaneously using the AX5PAF4-915.0000C?: Driving more than one LVPECL input typically degrades rise/fall times and increases jitter due to capacitive loading beyond the oscillator’s drive capability. The AX5PAF4-915.0000C is designed for fanout to two loads maximum, but even then, each receiver must meet minimum input impedance requirements (typically 50 Ω differential). Exceeding this can result in overshoot, undershoot, or degraded phase noise—especially noticeable at 915 MHz, where even small timing errors accumulate quickly in digital sampling systems.

How does the ClearClock™ architecture of the AX5PAF4-915.0000C improve jitter performance compared to conventional LVPECL oscillators, and what real-world benefits does this provide?: The ClearClock™ feature refers to enhanced phase noise characteristics achieved through optimized PLL loop design and low-noise reference synthesis. This results in lower integrated jitter, which translates to cleaner clock edges at 915 MHz. In high-speed ADC/DAC systems or coherent radar backends, reduced jitter improves SNR and enables higher data rates. Benchmarks show up to 30% reduction in RMS jitter versus non-ClearClock counterparts under identical test conditions, making the AX5PAF4-915.0000C preferable in precision timing applications.

What packaging challenges arise when integrating the AX5PAF4-915.0000C into compact RF front-end modules, and how does its size compare to alternatives?: At 5.00mm x 3.20mm, the AX5PAF4-915.0000C occupies moderate board space, but its 8-pin SMD footprint requires precise soldering in dense layouts. Compared to 4-pin SC-70 packages offering similar frequencies, it provides better thermal conductivity and easier probing, though at the cost of routing complexity. Careful attention to land pattern design, via placement, and thermal relief is essential to avoid tombstoning during reflow, particularly in lead-free processes with higher peak temperatures.

Can the AX5PAF4-915.0000C be synchronized with external reference clocks, and what synchronization features are supported?: No, the AX5PAF4-915.0000C does not support external synchronization or holdover switching. It functions solely as an autonomous crystal-controlled oscillator with built-in enable/disable control. Unlike disciplined oscillators with GPS or atomic clock inputs, this device lacks feedback correction mechanisms. Therefore, it cannot maintain long-term accuracy without a stable reference and is best suited for applications where absolute frequency is less critical than low phase noise and reliable startup.

How does moisture sensitivity (MSL 1) affect storage and handling of the AX5PAF4-915.0000C, and what precautions are recommended before reflow soldering?: MSL 1 indicates unlimited shelf life under normal dry storage conditions, meaning the AX5PAF4-915.0000C does not require bake-out prior to reflow. However, exposure to humid environments (e.g., >60% RH) before assembly could still induce popcorn effect if moisture ingress occurs during packaging. To mitigate risk, store parts in sealed desiccant bags and minimize time between opening and processing. Standard SnAgCu (SAC305) reflow profiles are acceptable, but peak temperatures exceeding 260°C should be avoided to prevent internal stress in the crystal element.

In what scenarios would the disable function of the AX5PAF4-915.0000C introduce unacceptable latency, and how does recovery time compare to other clock sources?: Enabling the AX5PAF4-915.0000C typically incurs a cold start-up time of 10–15 ms, during which the internal PLL locks onto the crystal. In time-sensitive protocols like Wi-SUN or sub-GHz mesh networks requiring immediate synchronization, this delay may violate timing budgets. Alternatives like buffered CMOS oscillators restart faster (~1 µs), but sacrifice spectral purity. Designers must model worst-case enable latency in state transitions and consider pre-warming strategies or redundant timing paths if deterministic response is required.

Does the AX5PAF4-915.0000C support spread spectrum clocking, and how might this affect EMI mitigation in crowded RF environments?: The AX5PAF4-915.0000C does not include integrated spread spectrum modulation. Without this feature, conducted and radiated emissions near 915 MHz remain concentrated, increasing susceptibility to regulatory limits in regions like FCC Part 15 or ETSI EN 300 328. While external FPGA-based spreading could theoretically be implemented, it adds complexity and may degrade timing precision. For compliance-critical deployments, consider pairing this oscillator with a filtered antenna design or selecting a variant with SSC support if available.

Parts with Similar Specifications

The three parts on the right have similar specifications to Abracon LLC AX5PAF4-915.0000C

Product Attribute
Part Number	AX5PAF4-910.0000C	AX5PAF4-915.0000T	AX5PAF4-945.0000C	AX5PAF4-915.0000
Manufacturer	Abracon LLC	Abracon LLC	Abracon LLC	Abracon LLC
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Frequency Stability	-	-	-	-
Series	-	-	-	-
Ratings	-	-	-	-
Voltage - Supply	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Absolute Pull Range (APR)	-	-	-	-
Output	-	-	-	-
Current - Supply (Max)	-	-	-	-
Type	-	-	-	-
Current - Supply (Disable) (Max)	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Frequency	-	-	-	-
Height - Seated (Max)	-	-	-	-
Function	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Size / Dimension	-	-	-	-
Base Resonator	-	-	-	-

AX5PAF4-915.0000C Datasheet PDF

Download AX5PAF4-915.0000C pdf datasheets and Abracon LLC documentation for AX5PAF4-915.0000C - 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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Customer Reviews

Evaluation: 10 Articles

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.
Bran***Lewis

May 11, 2026

Compact FPGA with good performance. Suitable for basic signal processing tasks.

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