AX7DBF3-320.0000C Equivalent & Substitute Parts

Part Overview

The AX7DBF3-320.0000C is a 320 MHz XO (Standard) LVDS Oscillator manufactured by Abracon LLC, part of the ClearClock™ AX7 series. This surface mount oscillator operates at 2.5V with Enable/Disable functionality and is housed in an 8-SMD, No Lead package. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

AX7DBF3-320.0000C

Abracon LLCIn Stock: 883AX7DBF3-320.0000C Datasheet

Current PartRFQ

591FB320M000DG

Skyworks Solutions Inc.In Stock: 792591FB320M000DG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AX7DBF3-320.0000C is determined by the following critical parameters:

• Frequency: 320 MHz (exact match required)
• Output: LVDS (electrical interface requirement)
• Supply Voltage: 2.5V (power compatibility)
• Function: Enable/Disable (operational feature)
• Frequency Stability: ±25ppm (timing accuracy)
• Operating Temperature: -40°C ~ 85°C (environmental range)
• Mounting: Surface Mount (assembly compatibility)
• Footprint: 7.00mm x 5.00mm (PCB layout compatibility)

The substitute part 591FB320M000DG from Skyworks Solutions Inc. meets all critical electrical parameters. Package differences (6-SMD vs. 8-SMD) and minor dimensional variations are noted but do not prevent functional substitution when PCB layout accommodates the footprint.

Parameter Comparison

Engineering Selection Recommendations

The 591FB320M000DG from Skyworks Solutions Inc. is a direct functional equivalent for the discontinued AX7DBF3-320.0000C. All critical electrical parameters align: frequency, output type, supply voltage, function, stability, and operating temperature range are identical. The footprint dimensions match exactly at 7.00mm x 5.00mm, enabling direct PCB layout compatibility.

The substitute part carries Active product status, ensuring long-term availability and supply chain continuity. Both parts comply with EAR99 export classification and share identical HTSUS coding. The Skyworks part demonstrates higher current specifications (100mA vs. 70mA maximum supply current), which provides additional design margin without creating incompatibility.

The package difference (6-SMD vs. 8-SMD) reflects internal design variation between manufacturers but does not affect electrical performance or PCB footprint compatibility. Height difference (1.80mm vs. 1.90mm) is negligible for standard assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the 591FB320M000DG replace the AX7DBF3-320.0000C directly on the PCB?

A: Yes. Both parts share identical footprint dimensions (7.00mm x 5.00mm) and mounting type (Surface Mount). The 6-SMD package of the substitute accommodates the same PCB land pattern as the 8-SMD original. Height difference (1.80mm vs. 1.90mm) is within standard assembly tolerances.

Q: Are the electrical outputs compatible?

A: Yes. Both oscillators provide LVDS output at 320 MHz with identical frequency stability (±25ppm) and operate from 2.5V supply with Enable/Disable control. Signal integrity and timing characteristics are equivalent.

Q: What is the impact of higher current consumption in the substitute part?

A: The 591FB320M000DG draws up to 100mA compared to 70mA for the original. This difference is compatible with standard power supply designs and typically requires no circuit modification. The higher specification provides additional design margin.

Q: Are both parts RoHS compliant?

A: The AX7DBF3-320.0000C is explicitly ROHS3 compliant. RoHS status for the 591FB320M000DG is not specified in available data but both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, indicating equivalent regulatory treatment.

Q: What is the moisture sensitivity level for both parts?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.