ADSP-BF531/ADSP-BF532/ADSP-BF533
OUTPUT DRIVE CURRENTS
through
show typical current-voltage char
acteristics for the output drivers of the ADSP-BF531/
ADSP-BF532/ADSP-BF533 processor. The curves represent the
current drive capability of the output drivers as a function of
output voltage.
150
V
DDEXT
= 2.75V
V
DDEXT
= 2.50V
V
DDEXT
= 2.25V
150
V
DDEXT
= 3.65V
V
DDEXT
= 3.30V
V
DDEXT
= 2.95V
100
SOURCE
CURRENT (mA)
50
0
V
OH
–50
100
SOURCE
CURRENT (mA)
–100
V
OL
50
–150
0
0
V
OH
0.5
1.0
1.5
2.0
2.5
3.0
3.5
SOURCE
VOLTAGE (V)
–50
V
OL
Figure 32. Drive Current A (V
DDEXT
= 3.3 V)
150
V
DDEXT
= 2.75V
V
DDEXT
= 2.50V
V
DDEXT
= 2.25V
–100
–150
100
0
0.5
1.0
1.5
2.0
2.5
3.0
SOURCE
CURRENT (mA)
50
SOURCE
VOLTAGE (V)
Figure 30. Drive Current A (V
DDEXT
= 2.5 V)
80
60
SOURCE
CURRENT (mA)
0
V
OH
V
DDEXT
= 1.9V
V
DDEXT
= 1.8V
V
DDEXT
= 1.7V
–50
40
20
0
–20
–40
–60
–80
0
–100
V
OL
–150
0
0.5
1.0
1.5
2.0
2.5
3.0
SOURCE
VOLTAGE (V)
Figure 33. Drive Current B (V
DDEXT
= 2.5 V)
80
60
0.5
1.0
SOURCE
VOLTAGE (V)
1.5
2.0
SOURCE
CURRENT (mA)
V
DDEXT
= 1.9V
V
DDEXT
= 1.8V
V
DDEXT
= 1.7V
40
20
0
–20
–40
–60
–80
0
Figure 31. Drive Current A (V
DDEXT
= 1.8 V)
0.5
1.0
SOURCE
VOLTAGE (V)
1.5
2.0
Figure 34. Drive Current B (V
DDEXT
= 1.8 V)
Rev. E |
Page 43 of 60 |
July 2007
AD [ ANALOG DEVICES ]
