ADSP-BF705BBCZ-4 datasheet(102/116 Pages) AD

102 / 116 page

Rev. A

Page 102 of 116

September 2015

ADSP-BF700/701/702/703/704/705/706/707

OUTPUT DRIVE CURRENTS

Figure 50 through Figure 61 show typical current-voltage char-

acteristics for the output drivers of the ADSP-BF70x Blackfin

processors. The curves represent the current drive capability of

the output drivers as a function of output voltage.

Figure 50. Driver Type A Current (1.8 V VDD_EXT)

Figure 51. Driver Type A Current (3.3 V VDD_EXT)

VOH

VOL

SOURCE VOLTAGE (V)

–5

–15

–10

–20

–30

–25

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

VDD_EXT = 1.9V @ –40°C

VDD_EXT = 1.8V @ 25°C

VDD_EXT = 1.7V @ 125°C

VDD_EXT = 1.9V @ –40°C

VDD_EXT = 1.8V @ 25°C

VDD_EXT = 1.7V @ 125°C

VOH

VOL

SOURCE VOLTAGE (V)

–20

–40

–60

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

VDD_EXT = 3.47V @ –40°C

VDD_EXT = 3.30V @ 25°C

VDD_EXT = 3.13V @ 125°C

VDD_EXT = 3.47V @ –40°C

VDD_EXT = 3.30V @ 25°C

VDD_EXT = 3.13V @ 125°C

Figure 52. Driver Type D Current (1.8 V VDD_EXT)

Figure 53. Driver Type D Current (3.3 V VDD_EXT)

Figure 54. Driver Type B and Driver Type C (DDR Drive Strength 34 Ω)

VOL

–4

–8

SOURCE VOLTAGE (V)

–12

–2

–6

–10

–14

–16

0.5

1.0

1.5

2.0

2.5

VDD_EXT = 1.9V @ –40°C

VDD_EXT = 1.8V @ 25°C

VDD_EXT = 1.7V @ 125°C

VOL

–5

–15

SOURCE VOLTAGE (V)

–25

–35

–10

–20

–30

–40

–50

–45

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

VDD_EXT = 3.47V @ –40°C

VDD_EXT = 3.30V @ 25°C

VDD_EXT = 3.13V @ 125°C

–35

–30

–25

–20

–15

–10

–5

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

SOURCE VOLTAGE (V)

VDD_DMC = 1.9V @ –40°C

VDD_DMC = 1.8V @ 25°C

VDD_DMC = 1.7V @ 125°C

VOL

ADSP-BF705BBCZ-4 Datasheet(PDF) 102 Page - Analog Devices

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