NOTE:R1= 100 Ohms, C1 = C2 = C3 = 30 pF

R1

C1

C2

C3

D

4.4

4.6

4.8

5.0

5.2

4.5

4.6

4.7

4.8

4.9

5.0

5.1

5.2

5.3

5.4

5.5

Supply Voltage (V)

T(TLH)

C004

5.2

5.4

5.6

5.8

4.5

4.6

4.7

4.8

4.9

5.0

5.1

5.2

5.3

5.4

5.5

Supply Voltage (V)

T(THL)

C005

DS8921, DS8921A, DS8921AT

SNLS374D – MAY 1998 – REVISED JANUARY 2015

www.ti.com

6.8 Typical Characteristics

Test Setup: Figure 5. Data Rate, Test Pattern: 2 Mbps, 1010 Pattern. T: 25°C

Figure 1. Typical Driver Output Low to High Transition Time

Figure 2. Typical Driver Output High to Low Transition Time

vs Supply Voltage

vs Supply Voltage

7 Parameter Measurement Information

7.1 AC Test Circuits and Switching Diagrams

Figure 3. Test Circuit for Receiver Output

Figure 4. Receiver Propagation Delay

Figure 5. Driver Test Circuit

6

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