ADSP-BF531/ADSP-BF532
OUTPUT DRIVE CURRENTS
150
100
50
Figure 28 through Figure 39 show typical current-voltage char-
acteristics for the output drivers of the ADSP-BF531/
ADSP-BF532 processor. The curves represent the current drive
capability of the output drivers as a function of output voltage.
VDDEXT = 2.75V
VDDEXT = 2.50V
VDDEXT = 2.25V
150
0
–50
VOH
VDDEXT = 2.75V
VDDEXT = 2.50V
100
50
VDDEXT = 2.25V
–100
–150
VOL
0
–50
VOH
0
0.5
1.0
1.5
2.0
2.5
3.0
SOURCE VOLTAGE (V)
Figure 31. Drive Current B (VDDEXT = 2.5 V)
VOL
–100
–150
80
60
V
V
= 1.9V
= 1.8V
= 1.7V
DDEXT
0
0.5
1.0
1.5
2.0
2.5
3.0
DDEXT
DDEXT
V
40
SOURCE VOLTAGE (V)
Figure 28. Drive Current A (VDDEXT = 2.5 V)
20
0
80
60
V
V
= 1.9V
= 1.8V
= 1.7V
-20
-40
-60
-80
DDEXT
DDEXT
DDEXT
V
40
20
0
0
0.5
1.0
1.5
2.0
SOURCE VOLTAGE (V)
-20
-40
-60
-80
Figure 32. Drive Current B (VDDEXT = 1.8 V)
150
100
50
VDDEXT = 3.65V
VDDEXT = 2.95V
0
0.5
1.0
1.5
2.0
SOURCE VOLTAGE (V)
VDDEXT = 3.30V
Figure 29. Drive Current A (VDDEXT = 1.8 V)
150
100
50
0
VDDEXT = 3.65V
DDEXT = 3.30V
VOH
V
VDDEXT = 2.95V
–50
–100
–150
VOL
0
VOH
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
–50
–100
–150
SOURCE VOLTAGE (V)
Figure 33. Drive Current B (VDDEXT = 3.3 V)
VOL
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
SOURCE VOLTAGE (V)
Figure 30. Drive Current A (VDDEXT = 3.3 V)
Rev. D
|
Page 43 of 60
|
August 2006
ADI [ ADI ]
