What is the clock and crystal frequency of 8085 microprocessor?
8085 operates on a clock frequency of 3MHz–6MHz depending upon the version selected. Clock is provided by a crystal oscillator of 2 times the frequency, so as to produce a 50% duty cycle clock. The minimum operating frequency of 8085 is 500kHz.
What is the maximum clock frequency of 8085?
3 MHz
What is the relation between 8086 processor frequency & crystal frequency?
8086 microprocessors require a clock frequency of 5MHz. 8284A clock generator and driver IC has a divide-by-3 circuit internally to divide the connected crystal’s frequency (33% duty cycle) to synchronize with external event such as another 8284A clock generator and driver IC.
What is a good operating frequency?
You should ideally use low-frequency coils (anywhere between 3 to 7.5 kHz) to look for large targets. The lower the frequency of the coil, the deeper your detector can look into the ground!
Which uses highest operating frequency?
Highest operating frequency can be expected in the case of-
- JEEt.
- All the other given option have nearly same frequency.
- MOSFET.
- Bipolar transistor.
What is the maximum speed of operating frequency?
For most devices, the maximum SPI clock frequency is one half of the system clock, but cannot exceed 12.5 MHz. Thus, as long as system clock frequency is 25 MHz or higher, the SPI clock can operate up to 12.5 MHz, and at system clock speeds below 25 MHz, the maximum SPI clock rate is SYSCLK/2.
How do you find maximum operating frequency?
Maximum operating frequency ≈ 1/(τ), where τ is a time constant: Since τ is determined by charging and discharging time, τ is calculated from the time required for the output voltage to reaches 63%.
How do you find operating frequency?
For the Android phone, it could use the app: LTE Discovery, tap SIGNALS, check EARFCN(band number), ‘DL Freq and UL Freq’.
What frequency does a microwave use?
Microwave frequencies range between 109 Hz (1 GHz) to 1000 GHz with respective wavelengths of 30 to 0.03 cm. Within this spectral domain are a number of communication systems applications that are important in both the military and civilian sectors.
Why do Microwaves use 2 45 GHz?
The frequency at which microwave ovens operate is about 2.45 GHz, which is about the resonant frequency of the free water molecule. Higher frequencies would penetrate less well and cook less evenly. Lower frequencies would penetrate better, but would be absorbed so weakly that they wouldn’t cook well.
What devices still use 2.4 GHz?
A lot of electronic devices and appliances use the 2.4 GHz frequency, including microwaves, baby monitors, and garage door openers.
What radio frequency band operates in the 10 cm radar?
The 10 cm radar short-band ranges roughly from 1.55 to 5.2 GHz….S band.
| Frequency range | 2 – 4 GHz |
|---|---|
| Wavelength range | 15 – 7.5 cm |
| Related bands | E / F bands (NATO) UHF / SHF (ITU) |
What are the limitations of the S band radar?
The National Weather Service (NWS) uses S band radars on a wavelength of just over 10 cm. The drawback to this band of radar is that it requires a large antenna dish and a large motor to power it. It is not uncommon for a S band dish to exceed 25 feet in size.
Which band of frequency is suitable for communication over great distances?
Answer: Most of the long distance communication results from ionisation of the F layer, the most applicable radio bands in the High Frequency being 3.5 MHz, 7 MHz, 14 MHz and 21 MHz.
Which frequency band does the this lie 4 to 8 GHz?
Frequency Bands
| Letter Designation | Frequency Range | Wavelength Range |
|---|---|---|
| S band | 2 to 4 GHz | 7.5 cm to 15 cm |
| C band | 4 to 8 GHz | 3.75 cm to 7.5 cm |
| X band | 8 to 12 GHz | 25 cm to 37.5 cm |
| Ku band | 12 to 18 GHz | 16.7 mm to 25 mm |
What radio frequency is harmful to humans?
The most restrictive limits on whole-body exposure are in the frequency range of 30-300 MHz where the human body absorbs RF energy most efficiently when the whole body is exposed.
Which frequency is used in radio?
RF frequency bands
| Band name | Abbreviation | Frequency |
|---|---|---|
| Low frequency | LF | 30–300 kHz |
| Medium frequency | MF | 300–3,000 kHz |
| High frequency | HF | 3–30 MHz |
| Very high frequency | VHF | 30–300 MHz |