10
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
IDT2308
3.3V ZERO DELAY CLOCK MULTIPLIER
TYPICAL DUTY CYCLE
(1)
AND IDD TRENDS
(2)
FOR IDT2308-1, 2, 3, AND 4
NOTES:
1. Duty Cycle is taken from typical chip measured at 1.4V.
2. IDD data is calculated from IDD = ICORE + nCVf, where ICORE is the Unloaded Current (n = Number of Outputs; C = Capacitance Load per Output (F); V = Voltage Supply(V);
f = Frequency (Hz).
3
3.1
3.2
3.3
3.4
3.5 3.6
VDD (V)
40
42
44
46
48
50
52
54
56
58
60
Duty Cycle vs V
DD
(for 30pf loads over frequency - 3.3V, 25C)
33MHz
66MHz
100MHz
D
u
t
y
C
y
c
l
e
(
%
)
3
3.1
3.2
3.3
3.4
3.5 3.6
VDD (V)
40
42
44
46
48
50
52
54
56
58
60
Duty Cycle vs V
DD
(for 15pF loads over frequency - 3.3V, 25C)
33MHz
66MHz
100MHz
20
40
60
80 100 120 140
Frequency (MHz)
40
42
44
46
48
50
52
54
56
58
60
Duty Cycle vs Frequency
(for 30pf loads over temperature - 3.3V)
-40C
0C
25C
70C
85C
D
u
t
y
C
y
c
l
e
(
%
)
D
u
t
y
C
y
c
l
e
(
%
)
133MHz
20
40
60
80 100 120 140
Frequency (MHz)
40
42
44
46
48
50
52
54
56
58
60
Duty Cycle vs Frequency
(for 15pF loads over temperature - 3.3V)
-40C
0C
25C
70C
85C
D
u
t
y
C
y
c
l
e
(
%
)
02
4
6
8
Number of Loaded Outputs
0
20
40
60
80
100
120
140
I
DD vs Number of Loaded Outputs
(for 30pf loads over frequency - 3.3V, 25C)
33MHz
66MHz
100MHz
I
D
D
(
m
A
)
02
4
6
8
Number of Loaded Outputs
0
20
40
60
80
100
120
140
I
DD vs Number of Loaded Outputs
(for 15pF loads over frequency - 3.3V, 25C)
33MHz
66MHz
100MHz
I
D
D
(
m
A
)
