SN65ALS1176

DIFFERENTIAL BUS TRANSCEIVER

SLLS295A – APRIL 1998 – REVISED DECEMBER 1999

7

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

VOD2

VOC

RL

2

RL

2

VOD3

Vtest

375

Ω

375

Ω

60

Ω

TEST CIRCUIT

VOLTAGE WAVEFORMS

3 V

0 V

≈ –2.5 V

50%

10%

tt(OD)

tt(OD)

td(ODL)

50%

10%

90%

90%

1.5 V

td(ODH)

Output

Input

Output

3 V

50

Ω

RL = 54 Ω

≈2.5 V

Generator

(see Note B)

CL = 50 pF

(see Note A)

1.5 V

(see Note C)

(see Note C)

NOTES: A. CL includes probe and jig capacitance.

B. The input pulse is supplied by a generator having the following characteristics: PRR

≤ 1 MHz, 50% duty cycle, tr ≤ 6 ns, tf ≤ 6 ns,

ZO =50 Ω.

C. td(OD) = td(ODH) or td(ODL)

Figure 3. Driver Differential-Output Delay and Transition Times