Datasheet

PCA9507_1 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 01 — 7 February 2008 13 of 20
NXP Semiconductors
PCA9507
2-wire serial bus extender for HDMI DDC I
2
C-bus and SMBus
10.1 AC waveforms
11. Test information
Fig 13. Propagation delay and transition times;
port B to port A
Fig 14. Propagation delay and transition times;
port A to port B
Fig 15. Propagation delay
002aad432
V
CC(B)
1.2 V
t
PLH
t
THL
0.3V
CC(B)
0.3V
CC(B)
input
output
20 %
0.3V
CC(A)
0.3V
CC(A)
80 %
20 %
80 %
t
PHL
t
TLH
V
OL
0.1 V
002aad433
V
CC(A)
V
CC(B)
t
PLH
t
THL
0.3V
CC(A)
0.3V
CC(A)
input
output
20 %
0.3V
CC(B)
0.3V
CC(B)
80 %
20 %
80 %
t
PHL
t
TLH
0.5 V
input
SDAB, SCLB
output
SCLA, SDAA
t
PLH
002aad434
0.3V
CC(A)
R
L
= load resistor; 1.35 kΩ on port B (2.7 V to 5 V) and 450 Ω on port A (2.7 V to 5.5 V).
C
L
= load capacitance includes jig and probe capacitance; 57 pF.
R
T
= termination resistance should be equal to Z
o
of pulse generators.
Fig 16. Test circuit for open-drain outputs
PULSE
GENERATOR
V
O
C
L
R
L
002aab649
R
T
V
I
V
CC(B)
V
CC(B)
DUT
V
CC(A)