參數(shù)資料
型號(hào): XR2211M
廠商: Exar Corporation
文件頁(yè)數(shù): 9/24頁(yè)
文件大?。?/td> 242K
代理商: XR2211M
XR-2211
9
Rev. 3.01
6.
FSK Data filter time constant, tF:
F
R
B
· R
F
( R
B
R
F
)·C
F
(seconds)
7.
Loop phase detector conversion gain, Kd: (Kd is the differential DC voltage across pin 10 and pin11, per unit of
phase error at phase detector input):
K
d
V
REF
· R
1
10,000·
volt
radian
Note:
For derivation/explanation of this equation, please see TAN-011.
8.
VCO conversion gain, Ko: (Ko is the amount of change in VCO frequency, per unit of DC voltage change at pin 11):
K
0
–2
V
REF
·C
0
· R
1
radian second
volt
9.
The filter transfer function:
F(s)
1
SR
1
·C
1
1
at 0 Hz
S = J and = 0
10. Total loop gain. K
T
:
K
T
K
O
·K
d
·F(s)
R
F
5,000·C
0
·(R
1
R
F
)
1
seconds
11. Peak detector current I
A
:
I
A
V
20,000(V
REF
in volts and I
A
in amps)
Note:
For derivation/explanation of this equation, please see TAN-011.
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