Question

What will be the frequency of timer clock if crystal frequency is 12mhz?

Answer 1

Answer:

6MHZ

Explanation:as the frequenncy of timer is half of crystal frequency.

Answer 2

Answer:

When the crystal frequency is given as 12MHz, then the timer frequency measured is 6MHz.

Explanation:

The following data are given in the solution:

Crystal frequency, $f_{crystal}$ = 12 MHz

• The crystal frequency is generated by a crystal oscillator which generates frequency by vibrating.

The frequency of the timer clock, $f_{clock}$ =?

• The clock frequency has more sources of current than the crystal frequency.
• The crystal frequency is preferred over the clock frequency because the crystal frequency has more stability and a large quality factor.

As we know,

• The clock frequency is measured as half of the crystal frequency.
• $f_{clock} = \frac{f_{crystal}}{2}$
• $f_{clock} = \frac{12}{2}$
• $f_{clock} = 6 MHz$

Therefore, the frequency of the timer clock, $f_{clock}$ = 6MHz.