Questions tagged [crystal]
Piezo-electric device cut at a specific resonance frequency, mostly used in oscillators.
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How to verify a crystal is damaged?
I need to check in one of designs to see if my crystal (8MHz) is working or not, the schematic is as follows:
When I check the USSXOUT pin I see the following signals:
Here I see almost 1 second ...
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Identify SMD crystal marked EATC
Can everybody help me to identify crystal EATC such as picture below?
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What is this SMD crystal marked AA51?
I have an SMD crystal marked AA51.
Please help me identify it from this picture:
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RTC Crystal severe timing issue
The issue is that my RTC 32.768KHz Crystal is oscillating at ~31.5kHz to 33kHz, depending on Load Capacitor values from troubleshooting. This was verified using the RTC_output signal used for ...
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Use of crystal oscillator
Can I use this crystal oscillator
instead of the crystal in this picture?
ESP8266 Hardware Design Guidelines
If so, can you explain to me how, I have to connect the crystal?
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ATSAME70 outputting clock on xin/xout and operating without crystal
I need to operate an ATSAME70 on an external 16MHz crystal. I had the crystal soldered onto the PCB and tried to enable it in MCC Harmony. For some reason the entire CPU started operating at a ...
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making a DF96 pentode crystal oscillator
I want to make a crystal oscillator using DF96 vacuum tube. The tube is a small RF/IF amplifier for battery operated systems. This tube is unique in the sense that it only takes 25ma of filament ...
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Recommendation for sine wave of 100kHz with 1ppm stable amplitude
I need to design a 100 kHz sine wave with 1 ppm stable amplitude. I mean the noise of the amplitude should be lower than 1 ppm RMS and also the thermal stability should be < 1 pmm/K.
I was thinking ...
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Identify values for these resonators
I need some help to identify the values of these resonators. Anyone here have experience with such components?
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Will the below XTAL Layout causes radiated emission from board
I am debugging a 6 layer board for RE issue and the stackup is (S G G P+G G S).This is a 6 layer board.
The microcontroller used is FS32K148UJT0VLQT and the XTAL circuit diagram is given below.
The ...
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Importance of load capacitance in 32.765 kHz crystals
I am designing a very low power portable device that has an RTC and I cannot choose a crystal for it. Most crystals on the market have 12.5pF load capacitance, however there are also 6 or 4pF crystals ...
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Crystal load capacitor physical defect
I have a 16MHz crystal that is used to derive a 60MHz PLL.
I have not seen many issues but have a PCBA that loses its PLL lock. I'm not sure why but I looked at one of the load capacitors up close (...
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Custom RP2040 PCB Design Check (after I biffed the first one)
I'm looking for some feedback on a circuit board that I've designed for a RP2040-powered macro keypad. I am well aware that I'm in over my head on this one, but I'm excited about this project and am ...
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Piezo electric buzzer as a crystal earpiece? [closed]
Making a foxhole radio, saw on https://rimstar.org/equip/crystal_earphone_earpiece_for_crystal_radio.htm
can you actually use a buzzer as a crystal earpiece?
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16 MHz crystal not oscillating
I recently designed a custom board in KiCAD using an ATMEGA32U4, I had JLCPCB solder on the USB-C connector and MCU, however I can't get it to boot load. I referenced another design that works (I made ...
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