參數(shù)資料
型號: 935221200118
廠商: NXP SEMICONDUCTORS
元件分類: PLL合成/DDS/VCOs
英文描述: PHASE LOCKED LOOP, PDSO16
封裝: PLASTIC, SOT-403, TSSOP-16
文件頁數(shù): 4/40頁
文件大?。?/td> 240K
代理商: 935221200118
1999 Jan 11
12
Philips Semiconductors
Product specication
PLL with bandgap controlled VCO
74HCT9046A
LOOP FILTER COMPONENT SELECTION
MBD045 - 1
ω
j
()
F
ω
1/
OUTPUT
INPUT
C2
I P
17
R b
1/
τ
1
A
τ
1
A
Fig.12 Simple loop filter for PC2 without damping.
a.
b. Amplitude characteristic:
c. Pole zero diagram.
τ
1
R
b
17
-------
C2
×
R3'
C2
×
==
F
j
ω
()
1
1A
j
ωτ
1
+
-----------------------------
1
j
ωτ
1
-----------
=
a.
b.
c.
MBD044 - 1
ω
j
()
F
m
1 /
τ
2
ω
O
1/
τ
2
1/
τ
1
OUTPUT
INPUT
R4
C2
I P
17
R b
A
1/
τ
1
A
Fig.13 Simple loop filter for PC2 with damping.
a.
b. Amplitude characteristic:
c. Pole zero diagram.
A = DC gain limit, due to leakage.
τ
1
R
b
17
-------
C2
×
R3'
C2
×
==
τ
2
R4
C2
×
=
F
j
ω
()
1j
ωτ
2
+
1A
j
ωτ
1
+
-----------------------------
=
a.
b.
c.
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