ADSP-BF539F View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
'ADSP-BF539F' PDF : 68 Pages View PDF
Preliminary Technical Data
OUTPUT DRIVE CURRENTS
Figure 32 shows typical current-voltage characteristics for the
output drivers of the ADSP-BF539/ADSP-BF539F processor.
The curves represent the current drive capability of the output
drivers as a function of output voltage.
120
100
80
60
40
20
0
-2 0
-4 0
-6 0
-8 0
-100
0
150
100
50
0
VDDEX T = 2.25V
VDDEX T = 2.50V
VDDEX T = 2.75V
VOH
VOL
0.5
1.0
1.5
2.0
2.5
3. 0
SOURCE VOL TAGE (V)
Figure 32. Drive Current A (Low VDDEXT)
VDDE XT = 3.0V
VDDE XT = 3.3V
VDD EX T = 3. 6V
VO H
-50
-100
-150
0
150
100
50
0
-50
-100
-150
0
VOL
0. 5
1.0
1.5
2.0
2 .5
3. 0
3.5
4.0
SOURCE VOLTAGE (V)
Figure 33. Drive Current A (High VDDEXT)
VDDEX T = 2. 25V
VDDEX T = 2. 50V
VDDEX T = 2. 75V
VOH
VOL
0 .5
1. 0
1 .5
2.0
2. 5
3.0
SOURCE VOLTAGE (V)
Figure 34. Drive Current B (Low VDDEXT)
ADSP-BF539/ADSP-BF539F
200
150
100
50
0
-50
-1 00
-1 50
-2 00
0
80
60
40
20
0
-20
-40
-60
0
100
80
60
40
20
0
-20
-40
-60
-80
0
VD DE XT = 3.0V
VD DE XT = 3.3V
VDDE XT = 3.6V
VO H
VOL
0. 5
1.0
1.5
2.0
2 .5
3. 0
3.5
4.0
SOURCE VOLTAGE (V)
Figure 35. Drive Current B (High VDDEXT)
VDD EX T = 2. 25V
VDD EX T = 2. 50V
VDD EX T = 2. 75V
VOH
VOL
0.5
1. 0
1.5
2.0
2. 5
3.0
SOURCE VOLTAGE (V)
Figure 36. Drive Current C (Low VDDEXT)
VDDE XT = 3.0V
VDDE XT = 3.3V
VDDE XT = 3.6V
VOH
VO L
0. 5
1.0
1.5
2.0
2 .5
3. 0
3.5
4.0
SOURCE VOLTAGE (V)
Figure 37. Drive Current C (High VDDEXT)
Rev. PrF | Page 55 of 68 | September 2006
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