ADSP-BF531/ADSP-BF532/ADSP-BF533
OUTPUT DRIVE CURRENTS
Figure 25
through
show typical current-voltage char-
acteristics for the output drivers of the ADSP-BF531/2/3
processor. The curves represent the current drive capability of
the output drivers as a function of output voltage.
SOURCE CURRENT (mA)
150
= 2.25V @ 95°C
DDEXT
V
= 2.50V @ 25°C
DDEXT
V
= 2.75V @ –40°C
DDEXT
V
100
50
150
= 2.25V @ 95°C
DDEXT
VDDEXT = 2.50V @ 25°C
VDDEXT = 2.75V @ –40°C
V
0
V
OH
100
SOURCE CURRENT (mA)
–50
50
–100
VOL
0
VOH
–150
0
0.5
1.0
1.5
2.0
2.5
3.0
SOURCE VOLTAGE (V)
–50
–100
VOL
Figure 27. Drive Current B (Low V
DDEXT
)
–150
0
0.5
1.0
1.5
2.0
2.5
3.0
SOURCE VOLTAGE (V)
150
Figure 25. Drive Current A (Low V
DDEXT
)
100
SOURCE CURRENT (mA)
VDDEXT = 2.95V @ 95°C
VDDEXT = 3.30V @ 25°C
V
= 3.65V @ –40°C
DDEXT
50
150
VDDEXT = 2.95V @ 95°C
VDDEXT = 3.30V @ 25°C
VDDEXT = 3.65V @ –40°C
0
VOH
–50
100
SOURCE CURRENT (mA)
50
–100
VOL
0
V
–50
OH
–150
0
0.5
1.0
1.5
2.0
SOURCE VOLTAGE (V)
2.5
3.0
3.5
–100
VOL
Figure 28. Drive Current B (High V
DDEXT
)
–150
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
SOURCE VOLTAGE (V)
Figure 26. Drive Current A (High V
DDEXT
)
Rev. 0 |
Page 39 of 56 | March 2004
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