SN75ALS192

QUADRUPLE DIFFERENTIAL LINE DRIVER

SLLS007D – JULY 1985 – REVISED APRIL 1998

5

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

50

Ω

50

Ω

VOD2

VOC

Figure 1. Differential and Common-Mode Output Voltages

Input A

Output Y

Output Z

tPLH

(see Note A)

tPHL

tPHL

tPLH

PROPAGATION DELAY TIMES AND SKEW

VOH

VOH

VOL

VOL

1.5 V

0 V

3 V

1.3 V

Skew

Skew

Enable G

Waveform 1

(see Note C)

3 V

0 V

VOL

VOH

1.5 V

tPZL

ENABLE AND DISABLE TIMES

See Note B

Enable G

1.5 V

tPZH

0.5 V

0.5 V

tPLZ

S1 Closed

S2 Closed

S1 Closed

S2 Closed

≈ 1.5 V

≈ 1.5 V

≈ 0 V

S1 Open

S2 Closed

S1 Closed

S2 Open

Waveform 2

(see Note C)

≈ 4.5 V

1.5 V

tPHZ

1.5 V

1.3 V

1.5 V

1.5 V

1.5 V

VOLTAGE WAVEFORMS

TEST CIRCUIT

VCC

From Output

Under Test

CL

(see Note D)

75

Ω

180

Ω

Test

Point

S1

S2

NOTES: A. When measuring propagation delay times and skew, switches S1 and S2 are open.

B. Each enable is tested separately.

C. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.

Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.

D. CL includes probe and jig capacitance.

E. All input pulses are supplied by generators having the following characteristics: PRR

≤ 1 MHz, ZO ≈ 50 Ω, tr ≤ 15 ns, and tf ≤ 6 ns.

Figure 2. Test Circuit and Voltage Waveforms