Datasheet

I
I
I
O
I
O
V
OD
50pF
27 Ω
27 Ω
V
OC
0Vor3V
I
O
I
O
V
OD
60 Ω
V
TEST
0Vor3V
375 Ω
375 Ω
V
TEST
=20Vto25V
V
OD
50 Ω
R
L
=54 Ω
C
L
=50pF
Signal
Generator
1.5V 1.5V
3V
0V
t
PLH
t
PHL
V
OD(H)
V
OD(L)
90%
0V
10%
t
r
t
f
INPUT
OUTPUT
V
OC
50 Ω
Signal
Generator
A
B
27 Ω
27 Ω
50pF
D
V
A
V
B
V
OC
V
OC(PP)
∆V
OC(SS)
≈ 3.25V
≈ 1.75V
SN65HVD21A
www.ti.com SLLSE36 –DECEMBER 2010
PARAMETER MEASUREMENT INFORMATION
NOTE: Test load capacitance includes probe and jig capacitance (unless otherwise specified). Signal generator
characteristics: rise and fall time <6 ns, pulse rate 100 kHz, 50% duty cycle, Zo = 50 Ω (unless otherwise
specified).
Figure 1. Driver Test Circuit, V
OD
and V
OC
Without Common-Mode Loading
Figure 2. Driver Test Circuit, V
OD
With Common-Mode Loading
Figure 3. Driver Switching Test Circuit and Waveforms
Figure 4. Driver V
OC
Test Circuit and Waveforms
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