What is the frequency range of crystal oscillator?

What is the frequency range of crystal oscillator?

40 KHz to 100 MHz
The typical operating range of the crystal oscillators is from 40 KHz to 100 MHz wherein the low frequency oscillators are designed using OpAmps while the high frequency-ones are designed using the transistors (BJTs or FETs).

What is frequency of crystal oscillator used in 8051?

12MHz
The 8051 has On-Chip crystal oscillator of 12MHz. We can drive 8051 also using the external clock sources. So to use external clock sources, there are XTAL1 and XTAL2 pins in the microcontroller. 8051 has four 8-bit IOports called Port0, Port1, Port2 and Port3.

How is crystal oscillator frequency measured?

The test will only work when the crystal monitor is powered. Bring the measurement probes of the multimeter into contact with the metallic legs of the crystal oscillator. One probe should touch each leg. The multimeter should now read a frequency that corresponds to the one written on the crystal oscillator casing.

Which oscillator is suitable for frequencies in the range of megahertz?

Only LC oscillators are suitable for MHz range.

Which oscillator is used for high frequency?

Crystal Oscillators
Crystal Oscillators are used where high-frequency stability is required. Wien-Bridge networks are low-frequency oscillators which are used to generate audio and sub-audio frequencies ranging between 20 Hz to 20 kHz.

What is the use of crystal oscillator in 8051?

8051 requires 12 clock cycles for one machine cycle, such that to give effective cycle rate at 1MHz (considering 12MHz clock) to 3.33MHz (considering maximum 40MHz clock). This crystal oscillator is used to generate clock pulses required for the synchronization of all the internal operations.

What is the maximum frequency which can apply from external crystal circuit?

A fundamental crystal oscillator circuit is simpler and more efficient and has more pullability than a third overtone circuit. Depending on the manufacturer, the highest available fundamental frequency may be 25 MHz to 66 MHz.

Which of the crystal frequency is used for timer program?

Explanation: Timer’s clock source is the crystal that is applied to the controller. 2. What is the frequency of the clock that is being used as the clock source for the timer? Explanation: The frequency of the clock source for the timer is equal to f/12(where f is the frequency of the crystal).

How do you find the frequency of a crystal?

His approach is simple: Monitor a function generator with an oscilloscope, but put the crystal under test in series. Then you move the frequency along until you see the voltage on the oscilloscope peak. That frequency should match the crystal’s operating frequency.

What kind of memory does the Atmel AT89C51 have?

The AT89C51 is an age old 8-bit microcontroller from the Atmel family. It works with the popular 8051 architecture and hence is used by most beginners till date. It is a 40 pin IC package with 4Kb flash memory.

Why do we need a standard crystal oscillator?

Many applications call for a crystal oscillator frequency conveniently related to some other desired frequency, so hundreds of standard crystal frequencies are made in large quantities and stocked by electronics distributors.

How many GPIO pins does the AT89C51 have?

It has four ports and all together provide 32 Programmable GPIO pins. It does not have in-built ADC module and supports only USART communication. Although it can be interfaced with external ADC IC like the ADC084 or the ADC0808.

What are the features of the at89c2051 microcontroller?

The AT89C2051 provides the following standard features: 2K bytes of Flash, 128 bytes of RAM, 15 I/O lines, two 16-bit timer/counters, a five vector two-level interrupt architecture, a full duplex serial port, a precision analog comparator, on-chip oscillator and clock circuitry. In addition, the AT89C2051 is designed with static logic for opera-