Datasheet

Rev. E | Page 48 of 60 | November 2013
ADSP-BF538/ADSP-BF538F
Figure 37. Drive Current C (Low V
DDEXT
)
Figure 38. Drive Current C (High V
DDEXT
)
0
S
O
UR
C
E
C
U
R
RE
N
T
(m
A
)
SOURCE VOLTAGE (V)
0 0.5 1.0 1.5 2.0 2.5 3.0
80
60
-
60
V
OL
V
OH
- 40
- 20
40
20
V
DDEXT
=2.75V
0
S
O
U
RC
E
C
U
R
R
E
N
T
(m
A
)
SOURCE VOLTAGE (V)
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
80
60
40
- 80
- 60
V
OL
V
OH
4.0
- 40
- 20
100
20
V
DDEXT
=3.0V
V
DDEXT
=3.3V
V
DDEXT
=3.6V
Figure 39. Drive Current D (Low V
DDEXT
)
Figure 40. Drive Current D (High V
DDEXT
)
0
SO
U
R
C
E
CU
R
R
E
NT
(m
A)
SOURCE VOLTAGE (V)
0 0.5 1.0 1.5 2.0 2.5
3.0
80
60
40
- 80
- 60
V
OL
V
OH
- 40
- 20
100
20
V
DDEXT
=2.75V
0
S
O
U
R
C
E
C
UR
R
E
N
T
(m
A
)
SOURCE VOLTAGE (V)
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
100
50
-
150
V
OL
V
OH
4.0
-
100
-
50
150
V
DDEXT
=3.0V
V
DDEXT
=3.3V
V
DDEXT
=3.6V