MC74HC4046A Datasheet, PDF (10/15 Pages) ON Semiconductor – Phase-Locked Loop

MC74HC4046A
800
VCC=3.0 V
400
VCC=4.5 V
VCC=6.0 V
0
1/2 VCC–1.0 V
1/2 VCC
VI (V)
1/2 VCC+1.0 V
Figure 10. Input Resistance at SIGIN, COMPIN with
∆VI = 1.0 V at Self–Bias Point
DEMOD OUT
6.0
VCC=6.0 V RS=300 k
VCC=6.0 V RS=50 k
VCC=4.5 V RS=300 k
VCC=4.5 V RS=50 k
VCC=3.0 V RS=300 k
VCC=3.0 V RS=50 k
0
0
3.0
6.0
VCOIN (V)
Figure 12. Offset Voltage at Demodulator Output as
a Function of VCOIN and RS
15
R1=3.0 kΩ
10
R1=300 kΩ
R1=100 kΩ
5.0
0
–5.0
–10
–15
–100
VCC = 4.5 V
C1 = 100 pF; R2 = ∞; VVCOIN = 1/2 VCC
–50
0
50
100
150
AMBIENT TEMPERATURE (°C)
Figure 13B. Frequency Stability versus Ambient
Temperature: VCC = 4.5 V
VCC=6.0 V
4.0
VCC=4.5 V
VCC=3.0 V
0
–4.0
1/2VCC – 500 mV
1/2 VCC
VI (V)
1/2 VCC + 500 mV
Figure 11. Input Current at SIGIN, COMPIN with
∆VI = 500 mV at Self–Bias Point
15
10
5.0
0 ^{R1=100 kΩ}
–5.0 ^{R1=300 kΩ}
R1=3.0 kΩ
R1=100 kΩ
R1=300 kΩ
–10
R1=3.0 kΩ
–15
–100
–50
VCC = 3.0 V
C1 = 100 pF; R2 = ∞; VVCOIN=1/3 VCC
0
50
100
150
AMBIENT TEMPERATURE (°C)
Figure 13A. Frequency Stability versus Ambient
Temperature: VCC = 3.0 V
10
8.0
6.0
4.0
2.0
0
–2.0
–4.0
–6.0
–8.0
–10
–100
R1=3.0 kΩ
R1=300 kΩ
R1=100 kΩ
VCC = 6.0 V
C1 = 100 pF; R2 = ∞; VVCOIN=1/2 VCC
–50
0
50
100
150
AMBIENT TEMPERATURE (°C)
Figure 13C. Frequency Stability versus Ambient
Temperature: VCC = 6.0 V
MOTOROLA
3–10
High–Speed CMOS Logic Data
DL129 — Rev 6