5027 series
AC Characteristics
For Fundamental Oscillator (5027×1 to 5027×7, 5027×P to 5027×W)
V
DD
= 1.60 to 3.63V, V
SS
= 0V, Ta =
−40
to +85°C unless otherwise noted.
Parameter
Symbol
t
r1
t
r2
t
f1
t
f2
Duty
t
OD
Condition
Measurement cct 1, C
LOUT
= 15pF,
0.1V
DD
to 0.9V
DD
Measurement cct 1, C
LOUT
= 15pF,
0.9V
DD
to 0.1V
DD
V
DD
= 2.25 to 3.36V
V
DD
= 1.60 to 2.25V
V
DD
= 2.25 to 3.36V
V
DD
= 1.60 to 2.25V
Rating
min
–
–
–
–
45
–
typ
2.0
3.0
2.0
3.0
50
–
max
4.5
5.0
4.5
5.0
55
50
Unit
ns
ns
ns
ns
%
µs
Output rise time
Output fall time
Output duty cycle
Output disable delay time
Measurement cct 1, Ta = 25°C, C
LOUT
= 15pF
Measurement cct 2, Ta = 25°C, C
LOUT
≤
15pF
For 3rd Overtone Oscillator (5027×A to 5027×D)
V
DD
= 1.60 to 3.63V, V
SS
= 0V, Ta =
−40
to +85°C unless otherwise noted.
Parameter
Symbol
t
r1
t
r2
t
f1
t
f2
Duty
t
OD
Condition
Measurement cct 1, C
LOUT
= 15pF,
0.1V
DD
to 0.9V
DD
Measurement cct 1, C
LOUT
= 15pF,
0.9V
DD
to 0.1V
DD
V
DD
= 2.25 to 3.36V
V
DD
= 1.60 to 2.25V
V
DD
= 2.25 to 3.36V
V
DD
= 1.60 to 2.25V
Rating
min
–
–
–
–
45
–
typ
1.2
1.6
1.2
1.6
50
–
max
3.0
4.0
3.0
4.0
55
50
Unit
ns
ns
ns
ns
%
µs
Output rise time
Output fall time
Output duty cycle
Output disable delay time
Measurement cct 1, Ta = 25°C, C
LOUT
= 15pF
Measurement cct 2, Ta = 25°C, C
LOUT
≤
15pF
Timing chart
0.9V
DD
0.9V
DD
Q
0.1V
DD
T
W
T
0.1V
DD
DUTY measurement
voltage (0.5V
DD
)
DUTY= T
W
/ T
100 (%)
t
r
t
f
Figure 1. Output switching waveform
V
IH
V
IL
INHN
t
OD
0.1V
t
STR
Q
Normal
operation
Output
stopped
Hi-Z*
Normal
operation
When INHN goes HIGH to LOW, the Q output goes HIGH once and then becomes high impedance.
When INHN goes LOW to HIGH, the Q output goes from high impedance to normal output operation after the oscillation start-up time “t
STR
” (oscillation
detector function).
*) The high-impedance interval in the figure is shown as a LOW level due to the 1kΩ pull-down resistor connected to the Q pin (see "Measurement circuit
2" in the "Measurement Circuits" section).
Figure 2. Output disable and oscillation start timing chart
SEIKO NPC CORPORATION —12
SEIKO [ SEIKO EPSON CORPORATION ]
