MC3487

QUADRUPLE DIFFERENTIAL LINE DRIVER

SLLS098C − MAY 1980 − REVISED FEBRUARY 2004

6

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

0.5 V

tPLZ

1 k

Ω

tPHZ

VOLTAGE WAVEFORMS

50

Ω

0 V or 3 V

Output

See Note C

SW2

SW1

5 V

SW3

200

Ω

1.5 V

1.5 V

1.5 V

1.5 V

3 V

0 V

VOL

VOH

TEST CIRCUIT

tPZL

tPZH

SW1 Closed

SW2 Open

SW2 Closed

SW1 Open

Output

Output

3 V

0 V

0.5 V

VOH

SW2 Closed

SW1 Closed

≈1.5 V

≈1.5 V

SW2 Closed

SW1 Closed

VOL

Output

Enable Input

Generator

(see Note A)

CL = 15 pF

(see Note B)

Output

Output

Output

Enable Input

NOTES: A. The input pulse is supplied by a generator having the following characteristics: tr ≤ 5 ns, tf ≤ 5 ns, PRR ≤ 1 MHz, duty cycle = 50%,

ZO = 50 Ω.

B. CL includes probe and stray capacitance.

C. All diodes are 1N916 or 1N3064.

Figure 4. Driver Test Circuit and Voltage Waveforms