What does xtal mean and what's its function? - Forum for Electronics
May 5, 2004 · A xtal is the habitual stupid way yankees like to write the correct word crystal, and often found written that way in schematic references. It is a thin slice of quartz crystal, exhibits the property …
Fast start-up crystal oscillator know-how | Forum for Electronics
Jan 5, 2004 · xtal start-up time gm Did anyone come across some design techniques for fast start-up XTAL? I did some previous designs already but always faced a problem for too long transient …
Explanation of AC analysis of oscillator | Forum for Electronics
Aug 31, 2024 · The phase characteristics of this 3rd order Xtal are key to determining the parallel then the series resonant frequency. Below I tuned L of this Xtal model to create 15 MHz
Resistor across crystal for biasing the internal op-amp
May 10, 2020 · It's not unusual for an Xtal oscillator to take 200ms until the frequency is stable with low jitter. While the one resistor just ensures that it will start, the second resistor (in series) can improve …
__delay_ms() is not working why ? using PIC16f877a and hitech compiler
Feb 7, 2011 · #ifndef _XTAL_FREQ // Unless already defined assume 4MHz system frequency // This definition is required to calibrate __delay_us () and __delay_ms () #define _XTAL_FREQ 20000000 …
A question on STB analysis of OSC | Forum for Electronics
Dec 4, 2024 · Hi , I have a problem on simulation of xtal oscillator. When I simulatie a Santos xtal OSC, I use STB to get its gainmargin which I found it is -1.5dB.So it should not to oscillate, but I found it can …
40MHz crystal works on 13.33MHz? | Forum for Electronics
Feb 15, 2002 · 7400 xtal osc Dear all, My supplier said the crystal I used is 3rd overtone, and they do not have the fundamental mode crystal > 30MHz. I have tried to make the capacitors smaller (5pF), …
[SOLVED] - What is the difference between a ... - Forum for Electronics
Mar 28, 2004 · difference crystal oscillator hi, regarding to the oscillator, xtal is one part of it. there are more than one type of oscillator, such as the RLC oscillator, xtal oscillator, so on. one of the …
XTAL question about capacitors | Forum for Electronics
Aug 18, 2002 · XTAL question.. Dear all: For general xtal output terminal are shunt 2 cap to ground and connect to IC pin xtal1 and xtal 2, but in this circuit have another method. who can explain this circuit …
27MHz crystal oscillator transmitter simulation in PSPICE
Jul 2, 2008 · There is a xtal library in PSPICE with some xtals but I have no idea about their resonance frequency and how to edit the resonance frequency in the model. Where I can find the 27MHz xtal …