Table of Contents
Advertisement
500
C
OSC
400
300
200
100
Oscillator Discharge Time is Measured at the Drive Outputs.
0
0
Figure 2. Oscillator Timing Resistor
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
0.5
Figure 4. Error Amp Output Low State Voltage
50
40
30
20
10
0
-10
- 20
10 k
Figure 6. Open Loop Voltage Gain and Phase
Downloaded from
Elcodis.com
electronic components distributor
C
= 300 pF
OSC
= 200 pF
C
OSC
20
40
60
t
, OSCILLATOR DISCHARGE TIME (ms)
dischg
versus Discharge Time
1.0
1.5
2.0
I
, OSCILLATOR CONTROL CURRENT (mA)
OSC
versus Oscillator Control Current
Gain
Phase
Phase
Margin
= 64°
100 k
1.0M
f, FREQUENCY (Hz)
versus Frequency
MC34067, MC33067
3500
3000
2500
= 500 pF
2000
V
= 12 V
1500
CC
= ∞
R
VFO
= ∞
R
T
1000
C
= 500 pF
T
T
= 25°C
A
500
0
80
100
0
60
30
20
10
6.0
3.0
2.5
3.0
0.1
50
V
= 12 V
CC
0
60
V
= 2.0 V
O
R
= 100 k
L
- 10
70
T
= 25°C
A
80
- 20
*V
90
- 30
100
- 40
110
- 50
120
10M
- 55
http://onsemi.com
5
V
= 12 V
CC
T
= 25°C
A
R
= 18.2 k
OSC
C
= 300 pF
OSC
400
800
1200
I
, OSCILLATOR CONTROL CURRENT (mA)
OSC
Figure 3. Oscillator Frequency versus
Oscillator Control Current
V
= 12 V
CC
C
= 500 pF
OSC
C
= 200 pF
T
R
= 100 k
OSC
T
= 25°C
A
C
= 300 pF
T
One-Shot Period is Measured
at the Drive Outputs.
0.3
0.6
1.0
t
, ONE-SHOT PERIOD (ms)
OS
Figure 5. One−Shot Timing Resistor
versus Period
*V
= 5.0 V
ref
= 5.1 V
V
= 12 V
ref
CC
= ∞
R
L
*V
T
= 25°C
ref at
A
*V
= 5.2 V
ref
- 25
0
25
50
T
, AMBIENT TEMPERATURE (°C)
A
Figure 7. Reference Output Voltage Change
versus Temperature
1600
2000
C
= 500 pF
T
3.0
6.0
10
75
100
125
Advertisement
Table of Contents
