MC74HC4046A_14 Datasheet, PDF (4/15 Pages) ON Semiconductor – Phase-Locked Loop

MC74HC4046A
[VCO Section]
DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
Symbol
V_IH
Parameter
Minimum High−Level
Input Voltage
INH
Test Conditions
V_out = 0.1 V or V_CC − 0.1 V
|I_out| ≤ 20 mA
V_CC
Guaranteed Limit
V –55 to 25_C ≤ 85°C
≤ 125°C Unit
3.0
2.1
2.1
2.1
V
4.5
3.15
3.15
3.15
6.0
4.2
4.2
4.2
V_IL Maximum Low−Level
Input Voltage
INH
V_out = 0.1 V or V_CC − 0.1 V
|I_out| ≤ 20 mA
3.0
0.90
4.5
1.35
6.0
1.8
0.9
1.35
1.8
0.9
V
1.35
1.8
V_OH Minimum High−Level
Output Voltage
VCO_OUT
V_OL Maximum Low−Level
Output Voltage
VCO_OUT
I_in
Maximum Input Leakage
Current INH, VCO_IN
V_in = V_IH or V_IL
|I_out| ≤ 20 mA
V_in = V_IH or V_IL
|I_out| ≤ 4.0 mA
|I_out| ≤ 5.2 mA
V_out = 0.1 V or V_CC − 0.1 V
|I_out| ≤ 20 mA
V_in = V_IH or V_IL
|I_out| ≤ 4.0 mA
|I_out| ≤ 5.2 mA
V_in = V_CC or GND
3.0
1.9
1.9
1.9
V
4.5
4.4
4.4
4.4
6.0
5.9
5.9
5.9
4.5
3.98
3.84
6.0
5.48
5.34
3.0
0.1
0.1
4.5
0.1
0.1
6.0
0.1
0.1
3.7
5.2
0.1
V
0.1
0.1
4.5
0.26
0.33
6.0
0.26
0.33
6.0
0.1
1.0
0.4
0.4
1.0
mA
Min Max Min Max Min Max
V_{VCO IN}
Operating Voltage Range at
VCO_IN over the range
specified for R1; For linearity
see Fig. 15A, Parallel value of
R1 and R2 should be > 2.7 kW
INH = V_IL
3.0 0.1 1.0 0.1 1.0 0.1 1.0 V
4.5 0.1 2.5 0.1 2.5 0.1 2.5
6.0 0.1 4.0 0.1 4.0 0.1 4.0
R1 Resistor Range
3.0 3.0 300 3.0 300 3.0 300 kW
4.5 3.0 300 3.0 300 3.0 300
6.0 3.0 300 3.0 300 3.0 300
R2
3.0 3.0 300 3.0 300 3.0 300
4.5 3.0 300 3.0 300 3.0 300
6.0 3.0 300 3.0 300 3.0 300
C1 Capacitor Range
3.0 40 No
pF
4.5 40 Limit
6.0 40
[VCO Section]
AC ELECTRICAL CHARACTERISTICS (C_L = 50 pF, Input t_r = t_f = 6.0 ns)
V_CC
Symbol
Parameter
V
Df/T Frequency Stability with
3.0
Temperature Changes
4.5
(Figure 14A, B, C)
6.0
fo VCO Center Frequency
3.0
(Duty Factor = 50%)
4.5
(Figure 15A, B, C, D)
6.0
DfVCO VCO Frequency Linearity
3.0
4.5
6.0
∂ VCO Duty Factor at VCO_OUT
3.0
4.5
6.0
Guaranteed Limit
–55 to 25_C ≤ 85°C
≤ 125°C
Min Max Min Max Min Max
3
11
13
See Figures 16A, B, C
Typical 50%
Unit
%/K
MHz
%
%
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