Analog Devices TigerSHARC ADSP-TS201S - Manual (Page 39)

ADSP-TS201S
Rev. C | Page 39 of 48 | December 2006
Figure 41. Typical Output Rise and Fall Time (10% to 90%, V
DD_IO
= 2.5 V)
vs. Load Capacitance at Strength 4
Figure 42. Typical Output Rise and Fall Time (10% to 90%, V
DD_IO
= 2.5 V)
vs. Load Capacitance at Strength 5
Figure 43. Typical Output Rise and Fall Time (10% to 90%, V
DD_IO
= 2.5 V)
vs. Load Capacitance at Strength 6
R
IS
E
A
N
D
F
A
L
L
T
IM
E
S
(n
s
)
LOAD CAPACITANCE (pF)
0 10 20 30 40 50 60 70 80 90 100
0
5
10
15
20
25
STRENGTH 4
(V
DD_IO
= 2.5V )
RISE TIME
Y = 0.0573x + 0.9789
FALL TIME
Y = 0.0592x + 1.0629
R
IS
E
A
N
D
F
A
L
L
T
IM
E
S
(n
s
)
LOAD CAPACITANCE (pF)
0 10 20 30 40 50 60 70 80 90 100
0
5
10
15
20
25
RISE TIME
Y = 0.0481 x + 0.7889
FALL TIME
Y = 0.0493x + 0.8389
STRENGTH 5
(V
DD_IO
= 2.5V)
R
IS
E
A
N
D
F
A
L
L
T
IM
E
S
(n
s
)
LOAD CAPACITANCE (pF)
0 10 20 30 40 50 60 70 80 90 100
0
5
10
15
20
25
RISE TIME
Y = 0.0377 x + 0.7449
FALL TIME
Y = 0.0374x + 0.851
STRENGTH 6
(V
DD_IO
= 2.5V)
Figure 44. Typical Output Rise and Fall Time (10% to 90%, V
DD_IO
= 2.5 V)
vs. Load Capacitance at Strength 7
Figure 45. Typical Output Valid (V
DD_IO
= 2.5 V) vs. Load Capacitance at Max
Case Temperature and Strength 0 to 7 1
1 The line equations for the output valid vs. load capacitance are:
Strength 0: y = 0.1255x + 2.7873
Strength 1: y = 0.0764x + 1.0492
Strength 2: y = 0.0474x + 1.0806
Strength 3: y = 0.0345x + 1.2329
Strength 4: y = 0.0296x + 1.2064
Strength 5: y = 0.0246x + 1.0944
Strength 6: y = 0.0187x + 1.1005
Strength 7: y = 0.0156x + 1.084
R
IS
E
A
N
D
F
A
L
L
T
IM
E
S
(n
s
)
LOAD CAPACITANCE (pF)
0 10 20 30 40 50 60 70 80 90 100
0
5
10
15
20
25
STRENGTH 7
(V DD_IO = 2.5V)
RISE TIME
Y = 0.0321 x + 0.6512 FALL TIME
Y = 0.0313x + 0.818
0 10 20 30 40 50 60 70 80 90 100
0
5
10
15
O
U
T
P
U
T
V
A
L
ID
(n
s
)
LOAD CAPACITANCE (pF)
1
2
3
4
5
6
7
STRENGTH 0–7
(V DD_IO = 2.5V)
0