參數(shù)資料
型號(hào): HCT9046
廠商: NXP Semiconductors N.V.
英文描述: PLL with bandgap controlled VCO
中文描述: 鎖相環(huán)控制VCO的帶隙
文件頁(yè)數(shù): 12/40頁(yè)
文件大?。?/td> 240K
代理商: HCT9046
1999 Jan 11
12
Philips Semiconductors
Product specification
PLL with bandgap controlled VCO
74HCT9046A
LOOP FILTER COMPONENT SELECTION
MBD045 - 1
c.
ω
j
)
F
ω
1/
OUTPUT
INPUT
C2
IP
IP
17
Rb
1/
τ
1
A
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
(
)
+
j
ωτ
1
1 A
ωτ
1
j
=
a.
b.
MBD044 - 1
ω
j
)
F
m
1 /
τ
2
ω
O
1/
τ
2
1/
τ
1
OUTPUT
INPUT
R4
C2
IP
IP
17
Rb
A
1/
τ
1
A
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
R4
------
C2
×
R3'
C2
×
=
=
τ
2
C2
×
=
F
j
ω
(
)
1
j
ωτ
1
+
1 A
=
a.
b.
c.
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