DS8921_15 Datasheet, PDF (6/20 Pages) Texas Instruments – Differential Line Driver and Receiver Pair

DS8921, DS8921A, DS8921AT
SNLS374D – MAY 1998 – REVISED JANUARY 2015
6.8 Typical Characteristics
Test Setup: Figure 5. Data Rate, Test Pattern: 2 Mbps, 1010 Pattern. T: 25°C
5.2
5.8
T(TLH)
5.0
5.6
4.8
5.4
4.6
T(THL)
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4.4
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)
C004
Figure 1. Typical Driver Output Low to High Transition Time
vs Supply Voltage
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)
C005
Figure 2. Typical Driver Output High to Low Transition Time
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
C2
D
C1
R1
C3
NOTE:R1= 100 Ohms, C1 = C2 = C3 = 30 pF
Figure 5. Driver Test Circuit
6
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