HD26C31 Datasheet, PDF (9/15 Pages) Hitachi Semiconductor – Quadruple Differential Line Drivers With 3 State Outputs

Test Circuit 3
Input
Pulse Generator
A
Zout = 50 Ω
V_{CC G}
G
Y
Output
Z
HD26C31
C2
R1
1.5 V
S1
R3
C1
C3
OPEN
R2
Note:
1. C1, C2 and C3 (40 pF) include probe and jig capacitance.
R1 = R2 = 50 Ω, R3 = 500 Ω
Ach
Bch
Oscilloscope
Bch Invert
Ach Add Bch
Waveforms 3
t_r
t_f
Input A
90 %
90 %
3V
10 %
10 %
0V
90 %
90 %
Output
(Differential)
10 %
t_TLH
Notes:
1. t_r ≤ 6 ns, t_f ≤ 6 ns
2. Input waveforms: PRR = 1 MHz, duty cycle 50%
10 %
t_THL
9