Ok so here is one of my attempts:
Icq = 10mA
Vcc = 15V
A (Voltgae Gain) = 50
Vbe = 0.6 V (I’m not sure how to choose my Vbe because it is in a range)
Vc = Vcc/2 = 7.5 V (because then you get maximum symmetrical swing about Vc)
After all this is determined, I proceeded to calculate Rc and Re by Kirchhoff’s Voltage Law:
Vcc = IcRc + Vce + IeRe
Vcc = Vce + Ic(Rc + Re) {Assuming that IC ~ IE }
Now I get
Ic = (Vcc-Vce)/(Rc+RE) (1)
Icq = Vcc/((2*A*Re)) {where A = Volatage gain} (2)
→ From equation (2) :
10mA = 15/(2*50*Re)
Therefore , Re = 15 Ω
Now,
Volatge Gain, A = - Rc/Re (3)
So, 50 = Rc/15
Rc = 750Ω
Ve = Veq = Icq * Re
= 10 mA * 15Ω
= 0.15V
In general Vbe = 0.60V
Therefore, Vbe = 0.60V + 0.15 V
Vbe = 0.75 V
I am still not sure how i am supposed to go about choosing a value for Vbe, do i again look at the data sheet?
Sp from here i have to now calculate R1 and R2 but this is where i am stuck, i am not sure how to do this without using the rule-of-thumb.
i uploaded my design layout.