Engineers working with oscillators and crystals know the importance of testing components to ensure they function reliably and accurately. Among the many tools designed for this purpose, the AFCB, or Analog Frequency Converter Board, stands out as a powerful device that simplifies and enhances crystal and oscillator testing.
What is AFCB?
An Analog Frequency Converter Board (AFCB) is a specialized testing tool designed to measure and convert frequency signals generated by crystals and oscillators. It translates high-frequency analog signals into a more manageable form, which is then processed by frequency measurement devices or counters.
An AFCB is particularly useful when working with high-frequency crystals and oscillators that operate beyond the direct measurement range of standard frequency counters or digital test equipment. It expands the range of measurement and allows for more accurate testing, making it an invaluable asset for electronics labs and production facilities alike.
With its ability to isolate the DUT from the test system and its dual operational modes, the AFCB stands out as a reliable solution for high-frequency testing needs.
Benefits of Using the AFCB
The AFCB offers numerous advantages for engineers testing crystals and oscillators:
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- Extended Frequency Range: By converting high frequencies to a lower, measurable range, the AFCB expands the capability of standard measurement tools. This allows for precise testing of crystals and oscillators that operate at frequencies beyond the limits of traditional test equipment.
- Improved Signal Quality: The AFCB’s signal conditioning features minimize noise, ensuring that the output signal accurately represents the device under test. This clarity is crucial for obtaining reliable data on performance characteristics.
- Versatility Across Applications: AFCBs are compatible with a wide range of crystal and oscillator types, making them useful for testing in fields as diverse as telecommunications, aerospace, automotive, and consumer electronics.
- Cost-Efficiency: High-frequency test equipment can be prohibitively expensive. The AFCB provides a cost-effective solution by converting frequencies to a manageable range, allowing engineers to perform accurate testing without requiring high-end measurement systems.
- Enhanced Calibration and Stability Analysis: AFCBs enable precise calibration and offer insights into frequency stability, both of which are critical for quality assurance in time-sensitive applications.
Key Features and Functionality
High-Frequency Testing: The AFCB is designed for testing crystals and oscillators with frequencies of up to 100 MHz in ICT (In-Circuit Testing).
Smart Isolation with Relay: One of the standout features of the AFCB is its use of a TWO-POLE/DOUBLE THROW relay. This relay plays a crucial role in isolating the test system from the device under test (DUT). By minimizing capacitive loading, the AFCB enhances measurement accuracy, allowing for precise testing of oscillators and crystals without the interference typically caused by connecting wires or external components.
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- Differential Mode: This configuration is suitable for testing crystals. In this mode, both sides of the crystal are connected to the Analog Inputs.
- Non-Differential Mode: This configuration is suitable for testing oscillators. In non-differential mode, the oscillator’s output is connected to the Analog Input. The other Analog Input terminal of the AFCB must be connected to GND to ensure proper operation.
The Analog Frequency Converter Board (AFCB) has revolutionized how engineers test and analyze high-frequency crystals and oscillators. With its ability to convert, amplify, and condition frequency signals, the AFCB makes it easier to perform accurate and comprehensive testing on these vital components. In fields that demand precise timing, such as telecommunications, aerospace, and consumer electronics, the AFCB is an indispensable tool that ensures reliability and quality in modern electronic devices.
Purchase your AFCB from Acculogic today. Contact sales@acculogic.com to inquire about Part number: A00-013-003.