74HCT4046AD,112 NXP Semiconductors, 74HCT4046AD,112 Datasheet - Page 21

• Manufacturer Part Number: 74HCT4046AD,112
• Description: IC PHASE LOCK LOOP W/VCO 16SOIC
• Manufacturer: NXP Semiconductors
• Type: Phase Lock Loop (PLL)r
• Series: 74HCTr

Specifications of 74HCT4046AD,112

• Number Of Circuits: 1
• Package / Case: 16-SOIC (3.9mm Width)
• Pll: Yes
• Input: Clock
• Output: Clock
• Ratio - Input:output: 2:3
• Differential - Input:output: No/No
• Frequency - Max: 19MHz
• Divider/multiplier: No/No
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Frequency-max: 19MHz
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Input Level: CMOS
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 4.5 V to 5.5 V
• Output Level: CMOS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-1547-5; 74HCT4046AD; 933809570112

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To obtain optimum temperature stability, C1 must be as small as possible but larger than 100 pF.
Fig.18 Frequency stability of the VCO as a function of ambient temperature with supply voltage as a parameter.
5
0
5
50
In (b), the frequency stability for R1 = R2 = 10 k at 5 V is also given (curve A). This curve is set by the total VCO bias current, and is
not simply the addition of the two 10 k stability curves. C1 = 100 pF; V
0
with offset
without offset (R2 = ): (a) R1 = 3 k ; (b) R1 = 10 k ; (c) R1 = 300 k .
(a)
50
V
CC
=
(R1 = ): (a) R2 = 3 k ; (b) R2 = 10 k ; (c) R2 = 300 k .
6 V
100
5 V
T amb (
3 V
4.5 V
3 V
MSB710
5 V
6 V
o
C)
150
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5
0
5
50
0
(b)
5 V
6 V
50
3 V
VCO IN
100
T
amb
V
CC
= 0.5 V
MSB711
3 V
5 V
6 V
( C)
A
=
o
150
CC
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5
0
5
50
0
(c)
50
6 V
V
5 V
CC
3 V
=
100
T
amb
MSB712
5 V
6 V
3 V
( C)
o
150