A good PCB layout for the XTR106UA/2K5 should consider the following: keep the input and output traces short and symmetrical, use a solid ground plane, and avoid routing high-frequency signals near the oscillator inputs. TI provides a recommended PCB layout in the datasheet, but it's essential to consult with a PCB design expert for optimal performance.
To ensure reliable startup, make sure the power supply is stable and within the recommended range (2.7V to 5.5V). Also, ensure the oscillator input pins (XIN and XOUT) are properly terminated with a 1-kΩ resistor and a 10-nF capacitor to ground. Additionally, avoid applying a voltage to the oscillator inputs during power-up.
The XTR106UA/2K5 has a typical frequency deviation of ±100 ppm over the operating temperature range (-40°C to 85°C). However, this can vary depending on the specific application and environmental conditions. It's essential to consider this deviation when designing your system.
While the XTR106UA/2K5 is rated for operation up to 85°C, it's essential to consider the device's thermal characteristics and ensure proper heat dissipation in high-temperature environments. Consult with a thermal expert to ensure the device operates within its recommended specifications.
To troubleshoot oscillator startup issues, check the power supply voltage, ensure proper termination of the oscillator inputs, and verify the crystal oscillator circuit is properly configured. Also, check for any noise or interference on the oscillator inputs. If issues persist, consult the TI support resources or contact a TI representative for assistance.
XTR106UA/2K5 datasheet
by Texas Instruments
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