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| 74HCT9046A Datasheet, PDF (28/40 Pages) NXP Semiconductors – PLL with bandgap controlled VCO | |||
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Philips Semiconductors
PLL with bandgap controlled VCO
Product speciï¬cation
74HCT9046A
PC1
CIRCUIT
R3
C2
R3
C3
R4
C2
C3
C2
R4
R3
A
PC2
R3'
R4
AR3'
C2
F(jÏ)
AMPLITUDE
CHARACTERISTIC
F(jÏ)
1/ Ï 1
a.
1/ Ï 2 1/ Ï 3
1/ Ï 1 Ï 2
b.
A
1/ Ï 2
1/ Ï 3
1/A Ï 1
c.
A
1/ Ï 2
1/ Ï 3
1/A Ï 1
POLE ZERO
DIAGRAM
X
1/ Ï 1
O
X
1/ Ï 2
1
Ï1 Ï2
O
1/Ï 2
X 1/A Ï 1
O
1/Ï 2
X 1/ AÏ1
C3
C2
R4
R3'
A
d.
A
1/ Ï 2
1/ Ï 3
1/A Ï 1
O
1/Ï 2
e.
Fig.30 Passive and active filters for HCT9046A.
X 1/ AÏ1
MBD107 - 1
1999 Jan 11
28
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