SN75LBC970A

SCSI DIFFERENTIAL CONVERTER-CONTROL

SLLS215B – MAY 1995 – REVISED JANUARY 1999

10

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

5 V

Output

165

Ω

165

Ω

75

Ω

Input

(see Note A)

A–

50 pF

50 pF

(see Note B)

B–

B+

td1

td2

Input

Output

0 V

1.5 V

3 V

t0

t0

or

delay

delay

VOD

A–

RESET

TEST

DSENS

RSTFLTR

VOD(L)

0 V

VOD(H)

NOTES: A. The input pulse is supplied by a generator having the following characteristics: tr ≤ 6 ns, tf ≤ 6 ns PRR ≤ 1 MHz,

45% < duty cycle < 50%, ZO = 50 Ω.

B. Resistance values are with a tolerance of

±5%.

C. All input voltage levels are held to within 0.01 V.

Figure 3. A-Side to B-Side Propagation Delay Time Test Circuit and Timing Definitions

Output

1.5 V

Input

(see Note A)

B–

15 pF

(see Note B)

td3

td4

Input

Output

0 V

1.5 V

3 V

t0

t0

or

delay

delay

A–

RESET

TEST

DSENS

RSTFLTR

VOL

1.5 V

VOH

B+

A–

B–

NOTES: A. The input pulse is supplied by a generator having the following characteristics: tr ≤ 6 ns, tf ≤ 6 ns PRR ≤ 1 MHz, 45% < duty cycle

< 50%, ZO = 50 Ω.

B. Resistance values are with a tolerance of

±5%.

C. All input voltage levels are held to within 0.01 V.

Figure 4. B-Side to A-Side Propagation Delay Time Test Circuit and Timing Definitions