Oscillator Design

[sprite23]

Mga sir/mam , pa help nman po with our project.
Sabay kc lecture at laboratory nmin this sem, but lagging sa topic ung lecture and atat nman ung lab nmen magpapass ng project. =(

Eto po requirements ng aming atat na instructor
Oscillator
1.Frequency 900Mhz
2. Frequency tolerance +/- 100Hz
3. Stability atleast 1min
4. Vout = 3Vpeaktopeak min
5. Psupply = 9v or 12v dc
6. Hartley oscillator to be used

[labgruppen]

+/-100Hz @ 900MHz ? Wow, that's almost +/-0.1ppm if I am not mistaken. high precision oscillator na ito. baka pasok pa ang ocxo dito. now, how to devise an ocxo using hartley config is beyond me..



waiting for the RF masters..
subscribing..

[rdpzycho]

meron ba kayong RF scope?

nagawa na ba 'to dati ng ibang batch?

900MHz is a very very high frequency para sa beginners. layout pa lang andami ng parasitics, kung walang PLL, sakit sa ulo magbukas-sara ng inductor para i-adjust 'yung frequency.

way back college, 1MHz lang ang unang frequency namin for RF lab.

[sprite23]

Mga sir/mam , pa help nman po with our project.
Sabay kc lecture at laboratory nmin this sem, but lagging sa topic ung lecture and atat nman ung lab nmen magpapass ng project. =(

Eto po requirements ng aming atat na instructor
Oscillator
1.Frequency 900Mhz
2. Frequency tolerance +/- 100Hz
3. Stability atleast 1min
4. Vout = 3Vpeaktopeak min
5. Psupply = 9v or 12v dc
6. Hartley oscillator to be used

ay sorry mga sir/mam, typo po. 900Khz lng po pla ung frequency nmin, d ko po napansin. lock topic ko nlng then post another pra malinaw. D ko kc alam ung EDIT post eh