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 I2C-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
VCC(B)
1.2 V
tPLH
tTHL
0.3VCC(B)
input
output
20 %
0.3VCC(A) 0.3VCC(A)
80 %
20 %
80 %
tPHL
tTLH
VOL
0.1 V
002aad433
VCC(A)
VCC(B)
tPLH
tTHL
0.3VCC(A)
input
output
20 %
0.3VCC(B) 0.3VCC(B)
80 %
20 %
80 %
tPHL
tTLH
0.5 V
input
SDAB, SCLB
output
SCLA, SDAA
tPLH
002aad434
0.3VCC(A)
RL = load resistor; 1.35 k on port B (2.7 V to 5 V) and 450 on port A (2.7 V to 5.5 V).
CL = load capacitance includes jig and probe capacitance; 57 pF.
RT = termination resistance should be equal to Zo of pulse generators.
Fig 16. Test circuit for open-drain outputs
PULSE
GENERATOR
VO
CL
RL
002aab649
RT
VI
VCC(B)
DUT
VCC(A)