help with transfer function

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adv14

Joined Jan 21, 2013
1
How do I get a transfer function in the form:

1+ Tz
k ---------
1+ Tp

from this circuit?


Vin--R1---C1--------Vout
...................|
...................C2
...................|
...................R2
...................|
...................GND

ignore dots just used them for spacing....
I did a voltage divider to get the transfer function:
[with s = jW]

R1 + 1/sC1
------------------
R1 + R2 + 1/sC1 + 1/sC2

is there a trick to changing the form?
 
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