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| ISL3034E Datasheet, PDF (7/16 Pages) Intersil Corporation – 4-Channel And 6-Channel High Speed, Auto-direction Sensing Logic Level Translators | |||
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ISL3034E, ISL3035E, ISL3036E
Test Circuits and Waveforms (Continued)
VL
EN
VCC
VL
SIGNAL
GENERATOR
I/OVCC
150Ω
I/OVL
CL
I/OVCC
50%
tPLH
I/OVL
50%
10%
tRVL
90%
50%
VCC
90%
0V
tPHL
VOH
50%
10%
VOL
tFVL
tPDVL = tPLH or tPHL
FIGURE 2A. TEST CIRCUIT
FIGURE 2B. MEASUREMENT POINTS
FIGURE 2. I/OVL OUTPUT PROPAGATION DELAY AND TRANSITION TIMES (PUSH - PULL)
SIGNAL
GENERATOR
EN
VL
VCC
VCC
GND
I/OVL
SW1
I/OVCC 1MΩ
SW2
VCC
GND
PARAMETER
tENL
tENH
SW1
GND
VCC
SW2
VCC
GND
FIGURE 3A. TEST CIRCUIT
VL
EN
50%
0V
tENL
VCC
I/OVCC
50%
VOL
OUTPUT LOW
tENH
I/OVCC
OUTPUT HIGH VOH
50%
0V
tEN-VCC = tENL OR tENH
FIGURE 3B. MEASUREMENT POINTS
FIGURE 3. I/OVCC OUTPUT ENABLE TIMES
SIGNAL
GENERATOR
EN
VCC
VL
VL
GND
I/OVCC
SW1
I/OVL
1MΩ
SW2
VL
GND
PARAMETER
tENL
tENH
SW1
GND
VL
SW2
VL
GND
FIGURE 4A. TEST CIRCUIT
EN
50%
VCC
0V
tENL
I/OVL
VL
50%
VOL
OUTPUT LOW
tENH
I/OVL
OUTPUT HIGH
50%
VOH
0V
tEN-VL = tENL OR tENH
FIGURE 4B. MEASUREMENT POINTS
FIGURE 4. I/OVL OUTPUT ENABLE TIMES
7
FN6492.0
March 31, 2009
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