Original Part
62.5 MHz XO (Standard) LVCMOS, LVTTL Oscillator 2.5V Enable/Disable 4-SMD, No Lead
Alternative Part
62.5 MHz XO (Standard) LVCMOS, LVTTL Oscillator 2.8V Enable/Disable 4-SMD, No Lead
62.5 MHz XO (Standard) LVCMOS, LVTTL Oscillator 2.8V Enable/Disable 4-SMD, No Lead
1. SIT8208AI-G1-28E-62.500000X Substitution Conclusion
The feasibility of substituting the original SIT8208AI-G1-25E-62.500000Y with the SIT8208AI-G1-28E-62.500000X is low. The primary reason is the increase in supply voltage from 2.5V to 2.8V. If the original system is designed for a 2.5V supply, using this substitute may result in operational failure, as operating below the rated voltage can cause oscillator startup issues, unstable output levels, or timing errors. Furthermore, power dissipation increases from approximately 82.5mW to 92.4mW at the same current, which could impact the system's thermal design. Other key parameters such as frequency (62.5 MHz), output type (LVCMOS/LVTTL), package (4-SMD), and frequency stability (±20ppm) are identical, making the parts physically pin-compatible. However, the electrical incompatibility due to the voltage mismatch prevents a direct drop-in replacement, unless the system supply can be adjusted to 2.8V or the device's voltage tolerance range is confirmed to support operation at 2.5V.
2. SIT8208AI-G1-28E-62.500000Y Substitution Conclusion
Similarly, the feasibility of substituting the original SIT8208AI-G1-25E-62.500000Y with the SIT8208AI-G1-28E-62.500000Y is also low. The core difference is again the supply voltage increase from 2.5V to 2.8V. This means if the system supply remains at 2.5V, this device may not function reliably due to insufficient voltage, potentially compromising output signal integrity and system synchronization. A slight increase in power dissipation is also expected. Other technical specifications, including frequency, output, package, footprint, and frequency stability, are consistent with the original model, ensuring mechanical compatibility. However, the voltage mismatch introduces risk for a direct substitution. This substitution should only be considered if the system can provide a 2.8V supply or if the device's datasheet confirms its voltage tolerance allows for operation at 2.5V.
Analysis ID: A14E-7CF5000
Based on part parameters and for reference only. Not to be used for procurement or production.
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