DS9639 Datasheet, PDF (4/6 Pages) National Semiconductor (TI) – Dual Differential Line Receiver

AC Test Circuit and Switching Time Waveform
DS009623-5
C_L includes jig and probe capacitance.
All diodes are FD700 or equivalent.
FIGURE 4. AC Test Circuit and Waveforms
Typical Applications
V_I
Amplitude: 1.0V
Offset: 0.5V
Pulse Width: 500 ns
PRR: 1 MHz
t_r = t_f ≤ 5.0 ns
DS009623-6
FIGURE 5.
DS009623-7
R_t ≥ 50Ω for RS-422 operation.
R_t combined with input impedance of receivers must be greater than 90Ω.
FIGURE 6. RS-422 System Application (FIPS 1020) Differential Simplex Bus Transmission
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