MC14521BDR2 ON Semiconductor, MC14521BDR2 Datasheet - Page 5

• Manufacturer Part Number: MC14521BDR2
• Manufacturer: ON Semiconductor

Specifications of MC14521BDR2

• Operating Temperature (max): 125C
• Operating Temperature (min): -55
• Package Type: SOIC
• Pin Count: 16
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

GENERATOR
*Optional for low power operation,
Figure 3. Crystal Oscillator Circuit
10 kW ≤ R ≤ 70 kW.
PULSE
C
S
C
R
T
o
18 M
V
V
DD
SS
IN 2
R
IN 1
IN 2
R
V
DD
V
V
V
Q18
Q19
Q20
Q21
Q22
Q23
Q24
DD
SS
DD
OUT 1
OUT 2
V
V
Q18
Q19
Q20
Q21
Q22
Q23
Q24
DD
SS
Figure 2. Switching Time Test Circuit and Waveforms
′
′
R*
V
V
R*
DD
SS
C
L
′
′
C
L
C
L
C
Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î
Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î
L
http://onsemi.com
C
*Complete oscillator includes crystal, capacitors, and resistors.
L
External Resistor/Capacitor Values
Frequency Stability
Crystal Characteristics
Resonant Frequency
Equivalent Resistance, R
C
R
C
C
Frequency Change as a Function
Frequency Change as a Function
L
o
T
S
of V
V
V
of Temperature (V
T
T
A
A
DD
DD
MC14521 only
Complete Oscillator*
MC14521 only
Complete Oscillator*
5
Figure 4. Typical Data for Crystal Oscillator Circuit
C
Change from – 55_C to + 25_C
Change from + 25_C to + 125_C
DD
L
Change from 5.0 V to 10 V
Change from 10 V to 15 V
(T
Characteristic
A
= 25_C)
IN 2
DD
Q
n
S
= 10 V)
50%
10%
20 ns
t
WL
10%
90%
t
PLH
t
TLH
500 kHz
Circuit
+ 100
– 160
+ 6.0
+ 2.0
– 4.0
– 2.0
500
1.0
47
82
20
50%
20 ns
t
WH
90%
50 kHz
Circuit
+ 120
– 560
+ 2.0
+ 2.0
– 2.0
– 2.0
750
6.2
50
82
20
20 ns
Unit
ppm
ppm
ppm
ppm
ppm
ppm
kHz
kW
kW
pF
pF
t
PHL
t
THL