The timestamps for the different topics covered in the video: 0:21 why crystal oscillator is used in certain applications 1:58 Working principle of crystal and different piezo-electric materials 4:05 The equivalent circuit of crystal and discussion on series and parallel resonant frequencies in the crystal 8:38 Crystal oscillator design using series resonance of the crystal 9:30 Colpitts oscillator using crystal 10:20 Pierce Oscillator using crystal 14:12 Things to consider while selecting crystal for crystal oscillator / for a particular application
Excellent explanation, however, at 7:12 in the video, it mentions 'parallel combination' while the formula on the slide is of series combination of capacitors. Capacitors add directly in parallel. In the loop the two capacitors are in series only I think. Please clarify. Thanks in advance.
Excellent video brilliantly explained in easy way Sir please🙏 make a video on explaining in detail the working of any RF transmitter receiver module circuit diagram , step by step, covering all the required topics used to design the RF circuit diagram
I understand that the crystal will deform when a voltage is applied accross it. I understand that it will have a natural resonant frequency. But I also know that it must be 'pumped' with a voltage *at the resonance frequency* . So what generates that pump frequency? And surely that would negate the need for the crystal all together, as you already have that frequency being generated?
The best way to think of it as an analogy is a swing on a swingset. You push it when it gets back to you, and you know when it gets to you without having to know the exact frequency. In the crystal world, you basically feed the signal back to itself based on the output of the crystal itself.
I don't understand from where the output is taken in the Pierce Oscillator 13:20 Isn't the parallel combination of capacitance = c1+c2 ? 14:05 what is the load capacitance and where it's connected Please suggest a reference book for this topic of XTAL
at 13:20, actually, both capacitors will be in series. If we just remove the crystal and see the capacitance across it, then it is the series combination of C1 and C2. (without the input and output capacitance) Load capacitance is the equivalent capacitance of the circuit, seen across the crystal. Here the crystal itself will act as a load. But the output of the oscillator is taken across the output of the inverter. I hope it will clear your doubt.
Wish a little more detail and examples as in previous oscillator videos. Not clear how equivalent C is derived. How does this apply to PIC controller oscillator input?
It is said to be the parallel combination of Cs and Cp. But, capacitances are simply added when they are in parallel. Though it is clear in the circuit that there are Rs and Ls also. So, Ceq is unclear here.
These are good videos man, one think that would REALLY help your channel is some voice classes. It is hard to understand you and you enunciate in an off way for native speakers so it makes it a little harder to get though. Even native speakers benefit from voice coaching. Keep it up!
It can be found by finding the impedance of the equivalent RLC circuit. At the resonant frequency, the impedance will be resistive. So, equating the imaginary part to zero the equation can be obtained.
Yes I understand that, but parallel combination of Cp & Cs should be Cp + Cs, here i think you want to say series combination Btw thanks for this explanation you did superb job, pls continue
@@viveksingh7388 From the circuit shown the capacitance should be calculated in parallel (Cp + Cs) still. I think he wants to say parallel but the formula is for series.
Stupid question...a crystal is more stable than an LC circuit. I had a bad thought, an LED is made with a crystal soooo could it possibly be used in a circuit in a similar manner? This is an unresearched question. Thanks.
LED is not made up of crystal it's made using diode... basically PN diode. Here it's called crystal because we are using QUARTZ CRYSTAL(a material) .. which acts a peizo electric material to generate desired Frequency. Thanks for asking :)
Well, some of us do have our mother tongue influence.. not everyone speaks like this tho, and in India, this level of pronounciation will be considered really good by most people lol 😅
@@miscmisc1029 It's not bad English, it's a dialect of its own and often quite hard to understand if you're not used to it (even with perfect grammar and vocabulary), especially if they talk fast.
Your explanation is very nice brother, I just want to know reference for this video from where you have taken this content, kindly suggest be a good book to learn about crystal oscillator, thanks in advance
It is used indifferent applications. Like in the processor, there is reference clock (in GHz) at which the CPU operates and all the peripheral devices are synchronized with that reference clock. In the frequency synthesizers also they are used. In the introductory video of oscillator and multivibrator, initially I have explained that. Please watch that video for more information. ruclips.net/video/XVS8Puf4tiw/видео.html
Good info but I need advice to change a crystal frequency of a AM transmitter from 1620 khz to 1000 khz ...I have found 1MHZ crystal, what capacitor i need to change it's a 30-50 watts with lamp final
Please check the value of the load capacitance in the datasheet. For any crystal, the load capacitance is given the datasheet. From, that you can find the value of the C1 and C2. Like I mentioned in the video, Ceq or CL= C1x C2 / (C1 + C2) + Cs Where Cs is the stray capacitance. Usually, it is in the range of 3-5 pF. If you consider C1 = C2 and simplify the equation then C1 = C2 = 2 (CL - Cs) So, let's say, for a given crystal if CL = 16pF, and assuming Cs = 4pF, C1 = C2 = 24pF I hope it will help you in selecting the value of capacitor.
@@ALLABOUTELECTRONICS Thank you for your answer. In the book they said to use (probably with the original crystal)..to use 220pf and a 530 pf. Do you think that could work?
Hi How Can I Lower The Frequency Of Quartz Crystal From 32768 kHz to 24500 kHz? I Wanna Create And Measure Martian Time Which Is 24 Hours 39 Minutes Thanks
By controlling the control voltage of the crystal, you can control the frequency. The other way is, you can use external capacitor along with the crystal (in parallel with crystal) in Colpitts oscillator and you can tune the frequency.
The equivalent ckt. diagram and how Ceq is computed does not make sense. Parallel CAPS are just added. Why is a parallel CAP circuit diagram then treated as a series CAP for computation?
Hi How Can I Lower The Frequency Of Quartz Crystal From 32768 kHz to 24500 kHz? I Wanna Create And Measure Martian Time Which Is 24 Hours 39 Minutes Thanks
@@ALLABOUTELECTRONICS sir I know that oscillators take dc supply and give oscillations at desired frequency , but as you said here that the inverse piezoelectric effect is giving ac signal at a frequency makes the material vibrate at that input ac frequency and I am thinking as dc has 0 frequency the crystal can't vibrate?
@@ALLABOUTELECTRONICS processors actually dont need stable clocks, in a pc the clock speed is changed constantly for excample, you can also run a frequency changing signal into the clock input of a microcontroller.
@@josefaschwanden1502 What I mean to say is, the processor needs a stable source of clock. Using PLL the clock frequency is upscaled and according to the need of the processor, the frequency gets changed. But the PLL needs a stable source, which is usually provided by the crystal oscillator.
I just got a giant bag of crystal oscillators nobody knows why or where they came from but they range from six megahertz to 10.245 megahertz and I have no idea why again but I guess I'm going to find out what to do with them right now
Great video! Nice job sir. But just like other people's observation, yeah you sound like a robot at the end of every sentences and it gets me distracted a little bit. 😅
The recording cuts to monotone vocabulary is distracting… it’s one thing if you had to do that over a few mistakes you made in the original cut, but over and over again, it’s: “The next effect is the:” “piezoelectriceffect” “And it is responsible for the:” “electricresonantfrequencyeffect” “Which means that it is:” “highfrequency”.
Can you reduce your Indian accent a little bit to the General English because your content is very useful but the accent makes me really hard to understand what you want to deliver
ALL ABOUT ELECTRONICS no need. Your English is perfectly clear, people will get used to different accents since native speakers of language will soon run out of people knowlegeable I science and Technology. There is an increasing number of lecturers with foreign accents in the leading universities in US .
While there is nothing wrong with Indian accent, he is certainly not speaking normal Indian english. He needs to learn to speak normally. Observe how he ends each sentence. Even I(an indian) found it Very annoying. Bro, if you put subs, I'd have to mute while watching. Those liars who say that there's nothing wrong with the way he speaks need English listening classes or an ENT doctor. While, our friend needs to attend English speaking classes. No offence.
The timestamps for the different topics covered in the video:
0:21 why crystal oscillator is used in certain applications
1:58 Working principle of crystal and different piezo-electric materials
4:05 The equivalent circuit of crystal and discussion on series and parallel resonant frequencies in the crystal
8:38 Crystal oscillator design using series resonance of the crystal
9:30 Colpitts oscillator using crystal
10:20 Pierce Oscillator using crystal
14:12 Things to consider while selecting crystal for crystal oscillator / for a particular application
I think this video is:
- Very informative.
that is a very:
- appropriate response
what does it mean that you write a comment in such?
- very specific way
Why am I reading these comments in a:
-very specific voice
i am confused as to why:
-this comment is a bullet point
Why am I not able to read any other word:
- other than very 😂
Excellent explanation, however, at 7:12 in the video, it mentions 'parallel combination' while the formula on the slide is of series combination of capacitors. Capacitors add directly in parallel. In the loop the two capacitors are in series only I think. Please clarify. Thanks in advance.
You explain all the topics of electronics so easily that anyone can understand it and it is far better than attending the our teachers lectures.
Great video! You do a good job explaining how the various components work. Keep up the good work!
Hi, the Cp and Cs are parallel to each other, so why is the Ceq = (Cp*Cs)/(Cp+Cs) ? and not Ceq=Cp+Cs ?
Excellent video brilliantly explained in easy way
Sir please🙏 make a video on explaining in detail the working of any RF transmitter receiver module circuit diagram , step by step, covering all the required topics used to design the RF circuit diagram
I understand that the crystal will deform when a voltage is applied accross it.
I understand that it will have a natural resonant frequency.
But I also know that it must be 'pumped' with a voltage *at the resonance frequency* . So what generates that pump frequency? And surely that would negate the need for the crystal all together, as you already have that frequency being generated?
The best way to think of it as an analogy is a swing on a swingset. You push it when it gets back to you, and you know when it gets to you without having to know the exact frequency.
In the crystal world, you basically feed the signal back to itself based on the output of the crystal itself.
This video is absolute BS, I recommend you find another one. The narrator is only reading from a text book,.
This video was so helpful! Thank you so much!
It was more informative and understandable thanks
Another question, overtones are harmonics meaning even higher frequencies, which will require even thinner crystal. Is there any confusion?
I don't understand from where the output is taken in the Pierce Oscillator
13:20 Isn't the parallel combination of capacitance = c1+c2 ?
14:05 what is the load capacitance and where it's connected
Please suggest a reference book for this topic of XTAL
at 13:20, actually, both capacitors will be in series. If we just remove the crystal and see the capacitance across it, then it is the series combination of C1 and C2. (without the input and output capacitance)
Load capacitance is the equivalent capacitance of the circuit, seen across the crystal. Here the crystal itself will act as a load. But the output of the oscillator is taken across the output of the inverter.
I hope it will clear your doubt.
@@ALLABOUTELECTRONICS Thanks
Best video sir
It's clear over doubts
Excellent video. Keep the nice work up.
Wish a little more detail and examples as in previous oscillator videos. Not clear how equivalent C is derived. How does this apply to PIC controller oscillator input?
It is said to be the parallel combination of Cs and Cp. But, capacitances are simply added when they are in parallel. Though it is clear in the circuit that there are Rs and Ls also. So, Ceq is unclear here.
an interesting lesson in well understandable approach . many thanks !
Very informative and truly helpful!
sir why is the RFC not used in the collector branch in both the circuits, or is it not necessary?
Let's say I have a piezo crystal on a stand by itself. Would you know how to wirelessly send electrical energy into it from 15-30 cms away?
These are good videos man, one think that would REALLY help your channel is some voice classes. It is hard to understand you and you enunciate in an off way for native speakers so it makes it a little harder to get though. Even native speakers benefit from voice coaching. Keep it up!
hi, I still don't get how to select the values of the components to make the crystal oscillate at his own resonant frequency ?
Thanks, wary great video and easy to follow!
7:09 Series connection or parallel connection od Cs and Cp?
How does the Rf makes the CMOS inverter work as an amplifier in the linear region?
Excellent video. Great upload.
thank you for your time really appreciate
At 7:09 how parallel combination of Cp & Cs is that?
It can be found by finding the impedance of the equivalent RLC circuit. At the resonant frequency, the impedance will be resistive. So, equating the imaginary part to zero the equation can be obtained.
Yes I understand that, but parallel combination of Cp & Cs should be Cp + Cs, here i think you want to say series combination
Btw thanks for this explanation you did superb job, pls continue
@@viveksingh7388 From the circuit shown the capacitance should be calculated in parallel (Cp + Cs) still. I think he wants to say parallel but the formula is for series.
Thank u sooo mch sirr.... I really undersand the topic..
Stupid question...a crystal is more stable than an LC circuit. I had a bad thought, an LED is made with a crystal soooo could it possibly be used in a circuit in a similar manner? This is an unresearched question. Thanks.
LED is not made up of crystal it's made using diode... basically PN diode.
Here it's called crystal because we are using QUARTZ CRYSTAL(a material)
.. which acts a peizo electric material to generate desired Frequency.
Thanks for asking :)
Very well explained sir
Indians tend to stress syllables in a weird way, makes it hard to understand some of the words.
They have their own English with blackjack and ... everything else.
yeah I listen with subtitles one for that
Well, some of us do have our mother tongue influence.. not everyone speaks like this tho, and in India, this level of pronounciation will be considered really good by most people lol 😅
@@miscmisc1029 It's not bad English, it's a dialect of its own and often quite hard to understand if you're not used to it (even with perfect grammar and vocabulary), especially if they talk fast.
Sorry I don't really understand the language or the dialect.
Thank You for Your work, honestly
English language: Indian-English dialect
You may turn on the subtitles
Hello. I didn't get why the Resistance Rf cause the CMOS inverter to work in the linear zone
12 MHz 3.2 mm x 2.5 mm SMD/SMT Crystals iam looking for this crstal ocialtor can u help me to find out
Nicely done, thank-you.
Hon. Good explanation.
Your explanation is very nice brother, I just want to know reference for this video from where you have taken this content, kindly suggest be a good book to learn about crystal oscillator, thanks in advance
I think Boylestad is a good book to learn Analog Electronics. You have example problems and exercises to strengthen your basics.
@@AnoNymous-po5sx thank you!
I think Ceq = Cs +Cp
In that case, fp would have been less than fs
Why do we produce frequency in oscillator please tell us ?
It is used indifferent applications. Like in the processor, there is reference clock (in GHz) at which the CPU operates and all the peripheral devices are synchronized with that reference clock. In the frequency synthesizers also they are used.
In the introductory video of oscillator and multivibrator, initially I have explained that.
Please watch that video for more information.
ruclips.net/video/XVS8Puf4tiw/видео.html
Thank you so much sir for this video
Good info but I need advice to change a crystal frequency of a AM transmitter from 1620 khz to 1000 khz ...I have found 1MHZ crystal, what capacitor i need to change it's a 30-50 watts with lamp final
Please check the value of the load capacitance in the datasheet. For any crystal, the load capacitance is given the datasheet.
From, that you can find the value of the C1 and C2.
Like I mentioned in the video, Ceq or CL= C1x C2 / (C1 + C2) + Cs
Where Cs is the stray capacitance.
Usually, it is in the range of 3-5 pF.
If you consider C1 = C2 and simplify the equation then C1 = C2 = 2 (CL - Cs)
So, let's say, for a given crystal if CL = 16pF, and assuming Cs = 4pF, C1 = C2 = 24pF
I hope it will help you in selecting the value of capacitor.
@@ALLABOUTELECTRONICS Thank you for your answer. In the book they said to use (probably with the original crystal)..to use 220pf and a 530 pf. Do you think that could work?
Very useful
شكرا ، ممكن برنامج محاكات لمذبذبات الكريستال
Hello sir
Plzzz tell why crystal oscillator needs no tuned circuit ?
Sir please upload negative resistance oscillator and relaxation oscillator
it's very interesting , thanks!
What is the purpose of C1 and C2 ? What will happen if its not used .?
Hi
How Can I Lower The Frequency Of Quartz Crystal From 32768 kHz to 24500 kHz?
I Wanna Create And Measure Martian Time Which Is
24 Hours 39 Minutes
Thanks
By controlling the control voltage of the crystal, you can control the frequency. The other way is, you can use external capacitor along with the crystal (in parallel with crystal) in Colpitts oscillator and you can tune the frequency.
@@ALLABOUTELECTRONICS Which one to use ceramic or electrolytic Capacitor?
Ceramic
@@ALLABOUTELECTRONICS
I want to decrease the frequency to 24500 khz
Do you think it is going to work?
Great video..very useful..
Good one, Thanks.
Thank you so much
The equivalent ckt. diagram and how Ceq is computed does not make sense. Parallel CAPS are just added. Why is a parallel CAP circuit diagram then treated as a series CAP for computation?
So nice thanks sir
C equivalent is series combination of Cp &Cs
Missed to mention Load capacitance of crystal as an important parameter while selecting Crystal.
Hi
How Can I Lower The Frequency Of Quartz Crystal From 32768 kHz to 24500 kHz?
I Wanna Create And Measure Martian Time Which Is
24 Hours 39 Minutes
Thanks
AMAZING
but in microcontrollers actually we give dc supply then how are we going to get it oscillating at some mhz?
Please check the first video on the oscillator playlist. I have explained it in detail.
@@ALLABOUTELECTRONICS sir I know that oscillators take dc supply and give oscillations at desired frequency , but as you said here that the inverse piezoelectric effect is giving ac signal at a frequency makes the material vibrate at that input ac frequency and I am thinking as dc has 0 frequency the crystal can't vibrate?
I love it good 👍
A small correct. Here C1 and C2 are considered to be series seeing from crystal.
C1 and C2 are In Series, The Formula That You are using is of Series Combination of Capacitors Not Parallel
Thats right I noticed that too !
Yes, I also noticed and was searching if some one else also noticed or not.
What is the value for components so i can build it ?
What frequency you are looking for ??
@@ALLABOUTELECTRONICS 16mhz
or 100 khz
If someone ask it's fundamental frequency then it would be series Or parallel one
Tq sir this video is very helpful
The audio sound like you pieced together dubbed audio, since you take a pause then talk monotone. Very distracting
that's just how the strong indian accent sounds :/
agree
Bhai padhle, dusro pe comment karne se ghar nahi chalne wala
Why do we need to generate frequency ??
All the devices which we are using, like a smartphone or PC, need the stable clock frequency to run the processors.
(Accurate) Timing
@@ALLABOUTELECTRONICS processors actually dont need stable clocks, in a pc the clock speed is changed constantly for excample, you can also run a frequency changing signal into the clock input of a microcontroller.
@@josefaschwanden1502 What I mean to say is, the processor needs a stable source of clock. Using PLL the clock frequency is upscaled and according to the need of the processor, the frequency gets changed. But the PLL needs a stable source, which is usually provided by the crystal oscillator.
@@ALLABOUTELECTRONICS nah they dont, but some applications arent stable if you have a unstable frequency.
I just got a giant bag of crystal oscillators nobody knows why or where they came from but they range from six megahertz to 10.245 megahertz and I have no idea why again but I guess I'm going to find out what to do with them right now
Sir my question Is
Why a crystal oscillator needs no tuned oscillator
Thanks
Very ordinary presentation by skipping the descriptions of how the circuits really work.
Ya he tells how it works but not what its used for keeping it secrete to the end.
I AGREE
Great video! Nice job sir. But just like other people's observation, yeah you sound like a robot at the end of every sentences and it gets me distracted a little bit. 😅
It's a common rhythmic trait of South Asians, I'm sure it has its origin in the rhythm of the speaker's native language.
I love it :) very calming, and it is a very clear means of getting the info across
good video!
Why I should read the subtitles?
Good content but very fast to follow even with low playback speed
it is very weird to suddenly change tone of voice after saying "the" its like you took audio clips from another recording.
Sounds like he is adding in the common words.
7:33 to 8:05
The recording cuts to monotone vocabulary is distracting… it’s one thing if you had to do that over a few mistakes you made in the original cut, but over and over again, it’s:
“The next effect is the:”
“piezoelectriceffect”
“And it is responsible for the:”
“electricresonantfrequencyeffect”
“Which means that it is:”
“highfrequency”.
0:00 "Hey, friends" and you know the guy is an Indian.
can someone send me a copy of electronic circuit analysis and design Donald Naemen
nice
Bhai ...videos kaise banate ho...usme bhi ek video banao.
Sir crystal oscillator kitni frequency ka signal generate karta h ye to bataya nhi aapne pura video dekhne ka kya labh hua hame
It typically generates the frequencies from 10s of kHz to 100s of MHz.
too hard to understand what he says
Capacitance of two parallel Capacitors are added c=c1+c2 but why c(eq) is different?
Please send me notes
whos the over guy who keeps butting inn
Can u plz not stop after “the”. It’s a little annoying......
Ahh you're not called Audible Electronics... sorry my bad! :D
Most of the viewers are from other countries not from india.
Sir please make video interesting
I am planning to? Subscribe.
Can you reduce your Indian accent a little bit to the General English because your content is very useful but the accent makes me really hard to understand what you want to deliver
Soon, I will update the English subtitles. You may use it for better understanding.
Thank you very much
Dũng Nguyễn Đăng Tuấn you better get used to different accents. Because sooner the native speakers will run out of knowlegeable lecturers.
ALL ABOUT ELECTRONICS no need. Your English is perfectly clear, people will get used to different accents since native speakers of language will soon run out of people knowlegeable I science and Technology. There is an increasing number of lecturers with foreign accents in the leading universities in US .
While there is nothing wrong with Indian accent, he is certainly not speaking normal Indian english. He needs to learn to speak normally. Observe how he ends each sentence. Even I(an indian) found it Very annoying. Bro, if you put subs, I'd have to mute while watching.
Those liars who say that there's nothing wrong with the way he speaks need English listening classes or an ENT doctor. While, our friend needs to attend English speaking classes. No offence.
🙂
you should have explain
it more
Nehi nehi
Awam videos
well
the narrator's english is horrible.
Tudey ei will shou yu hou tu shit in the sdreet
Its hi ("hai" not exactly "hi") lol
2:04 Material* xD xD
Everything was going perfect. Then "Metrial" happened 🙇