MC74HC4046AD ON Semiconductor, MC74HC4046AD Datasheet - Page 14

• Manufacturer Part Number: MC74HC4046AD
• Description: Phase Locked Loops (PLL) LOG CMOS PLL
• Manufacturer: ON Semiconductor
• Type: PLLr

Specifications of MC74HC4046AD

• Number Of Circuits: 1
• Supply Voltage (max): 6 V
• Supply Voltage (min): 2 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 2.5 V, 3.3 V, 5 V
• Package / Case: SOIC-16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

references as indicated below, also the values of R1, R2, and C1 should not violate the Maximum values indicated in the DC
ELECTRICAL CHARACTERISTICS tables.
APPLICATION INFORMATION
• Given f0
• Use f0 with
(see Figure 24 for
characteristics of
the VCO operation)
Figure 19 to
determine R1 and
C1.
The following information is a guide for approximate values of R1, R2, and C1. Figures 20, 21, and 22 should be used as
R
2
= ∞
Phase Comparator 1
• Given f0 and fL
• Calculate f
• Determine values
• Determine R1−C1
• Calculate value of
(see Figure 25 for
characteristics of
the VCO operation)
f
of C1 and R2 from
Figure 21.
from Figure 22.
R1 from the value
of C1 and the
product of R1C1
from Figure 22.
min
= f0−fL
R
2
0 R
min
• Given f
• Determine the
value of R1 and
C1 using Figure
20 and use Figure
22 to obtain 2fL
and then use this
to calculate f
R
2
max
= ∞
http://onsemi.com
Phase Comparator 2
MC74HC4046A
and f0
min
.
14
• Given f0 and fL
• Calculate f
• Determine values
• Determine R1−C1
• Calculate value of
(see Figure 25 for
characteristics of
the VCO operation)
f
of C1 and R2 from
Figure 21.
from Figure 22.
R1 from the value
of C1 and the
product of R1C1
from Figure 22.
min
= f0−fL
R
2
0 R
min
• Given f
• Determine the
value of R1 and
C1 using Figure
20 and Figure 22
to obtain 2fL and
then use this to
calculate f
R
2
max
= ∞
Phase Comparator 3
min
and f0
.
• Given f0 and fL
• Calculate f
• Determine values
• Determine R1−C1
• Calculate value of
(see Figure 25 for
characteristics of
the VCO operation)
f
of C1 and R2 from
Figure 21.
from Figure 22.
R1 from the value
of C1 and the
product of R1C1
from Figure 22.
min
= f0−fL
R
2
0 R
min: