PCA9517DRG4 View Datasheet(PDF) - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS
Part Name
Description
MFG CO.
'PCA9517DRG4' PDF : 17 Pages View PDF
www.ti.com
PULSE
GENERATOR
PCA9517
LEVEL-TRANSLATING I2C BUS REPEATER
SCPS157A – DECEMBER 2007 – REVISED FEBRUARY 2008
PARAMETER MEASUREMENT INFORMATION
VCC
VIN
VOUT
DUT
RT
(see Note B)
RL
VCC
(see Note A)
S1
CL = 57 pF
(see Note C)
GND
TEST
S1
t /t PLZ PZL
VCC
TEST CIRCUIT FOR OPEN-DRAIN OUTPUT
A. RL = 167 Ω on the A side and 1.35 kΩ on the B side
B. RT termination resistance should be equal to ZOUT of pulse generators.
C. CL includes probe and jig capacitance.
D. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω,
slew rate ≥ 1 V/ns.
E. The outputs are measured one at a time, with one transition per measurement.
F. tPLH and tPHL are the same as tpd.
G. tPLZ and tPHZ are the same as tdis.
H. tPZL and tPZH are the same as ten.
Figure 1. Test Circuit
3V
INPUT
1.5 V
1.5 V
tPZL
OUTPUT
80%
0.6 V
20%
tTHL
0.6 V
20%
0.1 V
tPLZ
80%
1.2 V
tTLH
VOL
Figure 2. Waveform 1 – Propagation Delay and Transition Times for B Side to A Side
VCCA
INPUT
0.3 VCCA
VCCA
0.3 VCCA
OUTPUT
tPZL
80%
1.5 V
20%
tPLZ
3V
80%
1.5 V
20%
Figure 3. Waveform 2 – Propagation Delay and Transition Times for A Side to B Side
Copyright © 2007–2008, Texas Instruments Incorporated
Product Folder Link(s): PCA9517
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