icl8038 Intersil Corporation, icl8038 Datasheet - Page 9

• Manufacturer Part Number: icl8038
• Description: Precision Waveform Generator/voltage Controlled Oscillator
• Manufacturer: Intersil Corporation

Definition of Terms
Supply Voltage (V
V+ to V-.
Supply Current. The supply current required from the
power supply to operate the device, excluding load currents
and the currents through R
Frequency Range. The frequency range at the square wave
output through which circuit operation is guaranteed.
Sweep FM Range. The ratio of maximum frequency to
minimum frequency which can be obtained by applying a
sweep voltage to pin 8. For correct operation, the sweep
voltage should be within the range:
(
Typical Performance Curves
2
/
3
FIGURE 11. SUPPLY CURRENT vs SUPPLY VOLTAGE
1.03
1.02
1.01
1.00
0.99
0.98
V
20
15
10
5
SUPPLY
5
FIGURE 13. FREQUENCY vs TEMPERATURE
+ 2V) < V
10
SUPPLY
30
20
10
-50
SWEEP
SUPPLY VOLTAGE (V)
TEMPERATURE (
). The total supply voltage from
15
A
-25
and R
9
< V
0
B
SUPPLY
.
20
25
-55
o
C)
o
25
C
o
C
75
25
125
o
C
10
20
30
125
30
ICL8038
FM Linearity. The percentage deviation from the best fit
straight line on the control voltage versus output frequency
curve.
Output Amplitude. The peak-to-peak signal amplitude
appearing at the outputs.
Saturation Voltage. The output voltage at the collector of
Q
sink current of 2mA.
Rise and Fall Times. The time required for the square wave
output to change from 10% to 90%, or 90% to 10%, of its
final value.
Triangle Waveform Linearity. The percentage deviation
from the best fit straight line on the rising and falling triangle
waveform.
Total Harmonic Distortion. The total harmonic distortion at
the sine wave output.
FIGURE 14. SQUARE WAVE OUTPUT RISE/FALL TIME vs
23
200
150
100
when this transistor is turned on. It is measured for a
1.03
1.02
1.01
1.00
0.99
0.98
50
0
FIGURE 12. FREQUENCY vs SUPPLY VOLTAGE
0
5
LOAD RESISTANCE
10
2
125
-55
25
o
o
o
C
LOAD RESISTANCE (k )
C
C
SUPPLY VOLTAGE (V)
FALL TIME
15
4
RISE TIME
20
6
25
8
125
25
-55
o
o
o
C
C
C
30
10