MC14521 ONSEMI [ON Semiconductor], MC14521 Datasheet - Page 6

• Manufacturer Part Number: MC14521
• Description: 24-Stage Frequency Divider
• Manufacturer: ONSEMI [ON Semiconductor]

–4.0
–8.0
–12
–16
8.0
4.0
0
–55
R
C = 1000 pF
TC
= 56 k ,
–25
R
T
Figure 7. RC Oscillator Circuit
A
S
, AMBIENT TEMPERATURE ( C), DEVICE ONLY
Figure 5. RC Oscillator Stability
{
C
0
R
R
S
S
R
= 0, f = 10.15 kHz @ V
= 120 k , f = 7.8 kHz @ V
TC
IN 1
IN 2
R
25
V
V
DD
SS
OUT 1
OUT 2
10 V
Q18
Q19
Q20
Q21
Q22
Q23
Q24
V
5.0 V
DD
V
50
V
V
DD
SS
DD
= 15 V
DD
= 10 V, T
DD
75
= 10 V, T
TEST CIRCUIT
A
FIGURE 7
= 25 C
A
100
= 25 C
http://onsemi.com
MC14521B
125
6
100
5.0
2.0
1.0
0.5
0.2
0.1
50
20
10
0.0001
GENERATOR
1.0 k
PULSE
f AS A FUNCTION
(R
(R
TC
Figure 6. RC Oscillator Frequency as a
S
OF C
= 120 k)
= 56 k )
Figure 8. Functional Test Circuit
Function of R
0.001
R
10 k
TC
C, CAPACITANCE ( F)
, RESISTANCE (OHMS)
V
DD
TC
IN 1
IN 2
R
= 10 V
and C
V
V
DD
100 k
SS
0.01
OUT 1
OUT 2
f AS A FUNCTION
Q18
Q19
Q20
Q21
Q22
Q23
Q24
(C = 1000 pF)
(R
V
V
TEST CIRCUIT
SS
DD
OF R
S
FIGURE 7
2R
TC
TC
)
1.0 m
0.1