CF5072 series
AC Characteristics
Recommended operating conditions apply unless otherwise noted
Rating
Parameter
Symbol
Conditions
Min
Output duty cycle 1
Output duty cycle 2
Output swing
1
Output rise time
Output fall time
Output enable delay time
Output disable delay time
Duty1
Duty2
V
Opp
t
r
t
f
t
OE
t
OD
Measurement circuit 1, measured at output
crossing point, Ta = 25
°
C, V
DD
= 3.3V
45
45
Typ
50
50
–
Max
55
55
–
%
%
V
ns
ns
ns
ns
Unit
Measurement circuit 1, measured at 50% output
swing, Ta = 25
°
C, V
DD
= 3.3V
Measurement circuit 1, peak-to-peak of output
waveform
Measurement circuit 1, output swing 20% to 80%
Measurement circuit 1, output swing 80% to 20%
Measurement circuit 3, Ta = 25
°
C
Measurement circuit 3, Ta = 25
°
C
ina
–
–
–
–
1. The said values are measured by using the NPC standard jig.
t
r
OUTN
OUT
t
f
lim
t
PER
DUTY1 = (
t
W
/
t
PER
)
100
t
W
Figure 1. PECL output waveform
t
OD
OE
pre
OUT
OUTN
V
DD
/2
LOW-level
(High impedance)
Figure 2. OE timing waveform
ry
0.4
–
–
0.5
0.5
1
1
200
200
V
Opp
V
DD
V
OH
80%
20%
V
DD
– 2V
V
SS
t
OE
V
DD
GND
V
DD
GND
NIPPON PRECISION CIRCUITS INC.—5
SEIKO [ SEIKO EPSON CORPORATION ]
