Datasheet

V
OH
V
OL
From Output
Under Test
LOAD CIRCUIT FOR ENABLE/DISABLE
TIME MEASUREMENT
S1
2 × V
CCO
Open
50 kW
t
PLH
t
PHL
Output
Control
(low-level
enabling)
Output
Waveform 1
S1 at 2 × V
CCO
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
t
PZL
t
PZH
t
PLZ
t
PHZ
V
CCA
/2V
CCA
/2
V
CCI
0 V
V
CCO
/2
V
OH
V
OL
0 V
0.1 y V
CCO
V
CCO
/2
0.9 y V
CCO
V
CCO
/2
0 V
V
CCI
0 V
V
CCI
/2 V
CCI
/2
t
w
Input
V
CCA
V
CCO
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
Output
Input
t
PZL
/t
PLZ
t
PHZ
/t
PZH
2 × V
CCO
Open
TEST S1
A. C
L
includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRRv10 MHz, Z
O
= 50 Ω, dv/dt ≥ 1 V/ns.
D. The outputs are measured one at a time, with one transition per measurement.
E. t
PLZ
and t
PHZ
are the same as t
dis
.
F. t
PZL
and t
PZH
are the same as t
en
.
G. t
PLH
and t
PHL
are the same as t
pd
.
H. V
CCI
is the V
CC
associated with the input port.
I. V
CCO
is the V
CC
associated with the output port.
J. All parameters and waveforms are not applicable to all devices.
50 kW
1 MW
15 pF
15 pF
DATA RATE, PULSE DURATION, PROPAGATION DELAY,
OUTPUT RISE AND FALL TIME MEASUREMENT USING
A PUSH-PULL DRIVER
V
CCO
V
CCI
DUT
IN
OUT
1 MW
15 pF
DATA RATE, PULSE DURATION, PROPAGATION DELAY,
OUTPUT RISE AND FALL TIME MEASUREMENT USING
AN OPEN-DRAIN DRIVER
V
CCO
V
CCI
DUT
IN
OUT
V
CCI
/2 V
CCI
/2
0.9 y V
CCO
V
CCO
/2
t
r
0.1 y V
CCO
t
f
TCA9406
SCPS221B –OCTOBER 2010–REVISED JUNE 2013 www.ti.com
PARAMETER MEASUREMENT INFORMATION
Figure 2. Load Circuit and Voltage Waveforms
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