Datasheet

PCA9518_5 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 05 — 2 December 2008 12 of 21
NXP Semiconductors
PCA9518
Expandable 5-channel I
2
C-bus hub
11. Test information
R
L
= load resistor; 1.1 kΩ for I
2
C-bus, and 500 Ω for EXPxxxn.
C
L
= load capacitance includes jig and probe capacitance; 100 pF for I
2
C-bus, and 100 pF for
EXPxxxn.
R
T
= termination resistance should be equal to Z
o
of the pulse generators.
Fig 8. Test circuit for open-drain outputs
PULSE
GENERATOR
V
O
C
L
R
L
002aad479
R
T
V
I
V
CC
V
CC
DUT