7

FN6587.1

February 18, 2008

FIGURE 2A. TEST CIRCUIT

FIGURE 2B. MEASUREMENT POINTS

FIGURE 2. DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES

FIGURE 3A. TEST CIRCUIT

FIGURE 3B. MEASUREMENT POINTS

FIGURE 3. DRIVER ENABLE AND DISABLE TIMES

FIGURE 4A. TEST CIRCUIT

FIGURE 4B. MEASUREMENT POINTS

FIGURE 4. DRIVER DATA RATE

D

DE

DI

SIGNAL

GENERATOR

Z

Y

OUT (Z)

3V

0V

1.5V

1.5V

OUT (Y)

DIFF OUT (Y - Z)

90%

90%

10%

10%

DI

D

DE

DI

Z

Y

GND

SW

PARAMETER

OUTPUT

RE

DI

SW

Y/Z

X

1/0

GND

Y/Z

X

0/1

Y/Z

0 (Note 8)

1/0

GND

Y/Z

0 (Note 8)

0/1

Y/Z

1 (Note 11)

1/0

GND

Y/Z

1 (Note 11)

0/1

SIGNAL

GENERATOR

110

Ω

50pF

OUT (Y, Z)

3V

0V

1.5V

1.5V

0V

OUT (Y, Z)

DE

OUTPUT HIGH

OUTPUT LOW

(NOTE 10)

50%

50%

(NOTE 10)

(NOTE 10)

D

DE

DI

SIGNAL

GENERATOR

Z

Y

+

-

54

Ω

3V

0V

DIFF OUT (Y - Z)

DI

0V

ISL3259E