MC44145
ELECTRICAL CHARACTERISTICS (continued)
Characteristic
Note
Pin
Min
Typ
Max
Unit
SYNC SEPARATOR (VCC = 5.0 V; TA = 25°C, unless otherwise specified.)
VCO (VCC = 5.0 V; TA = 25°C, unless otherwise specified, divider disabled.)
Fmin
1, 5
7, 8, 14
–
–
10
MHz
Fmax
1, 4
7, 8, 14
39
42
–
MHz
Control Range
2
14
1.0
–
4.0
V
Transfer Function
1
7, 8, 14
–
14
–
MHz/V
Input Resistance
Charge Pump
9
14
0.5
–
–
MΩ
6
1, 14
–
40
–
µA
7
–
80
–
Phase Jitter
8
7, 9
–
–
3.0
ns
INPUT BUFFERS (Fref AND NBACK) (TA = 25°C, unless otherwise specified.)
Threshold (TTL Compatible)
–
9, 13
–
2.5
–
V
Input Current
–
9, 13
–
–
1.0
µA
OUTPUT BUFFER CLOCK (TA = 25°C, unless otherwise specified.)
Sync Amplifier Output High Level
1.0 mA
10
2.4
3.0
–
V
Source
Sync Amplifier Output Low Level
1.0 mA Sink
10
–
0.2
0.4
V
Rise Time
11
10
–
–
6.0
ns
Fall Time
11
10
–
–
6.0
ns
Load Capacitance
10
10
–
15
–
pF
NOTES: 1. Internal divider disabled.
2. 0 V stops the oscillator.
3. Divider ÷2 active.
4. VC = 4.0 V.
5. VC = 1.0 V.
6. PFD gain low.
7. PFD gain high.
8. VCO alone.
9. VC = 4.0 V, charge pumps off.
10. 2 LSTTL loads.
11. With cap load 15 pF and between 10 and 90% of 0.4 and 2.4 V.
MOTOROLA ANALOG IC DEVICE DATA
3