NXP Semiconductors
PCA9527
3-channel bidirectional bus extender for HDMI, I2C-bus and SMBus
10.1 AC waveforms
input
0.3VCC(B)
tPHL
output
80 %
0.3VCC(A)
20 %
tTHL
20 %
VCC(B)
0.1 V
80 %
VCC(A)
tTLH
VOL
002aae449
Fig 13. tPHL propagation delay and transition times;
SCLB/SDAB to SCLA/SDAA
input
output
0.3VCC(A)
0.3VCC(A)
VCC(A)
tPHL
tPLH
80 %
0.3VCC(B) 0.3VCC(B)
20 %
20 %
tTHL
80 %
VCC(B)
tTLH
002aad433
Fig 14. Propagation delay and transition times;
SCLA/SDAA to SCLB/SDAB
input
SDAB, SCLB,
CECB
0.5 V
output
SCLA, SDAA,
CECA
0.3VCC(A)(1)
tPLH
002aae460
(1) CECA output has 0.3VCC(B) reference.
Fig 15. tPLH propagation delay; B inputs to A inputs
input
output
0.3VCC(B)
0.3VCC(B)
VCC(B)
tPHL
tPLH
80 %
0.3VCC(B) 0.3VCC(B)
20 %
20 %
tTHL
80 %
VCC(B)
tTLH
002aae450
Fig 16. Propagation delay and transition times;
CEC in to CEC out
11. Test information
VCC(B)
VCC(A)VCC(B)
RL
PULSE
VI
GENERATOR
VO
DUT
RT
CL
002aab649
RL = load resistor; 1.35 kΩ on port B (2.7 V to 5 V) and 1.5 kΩ on port A (5.0 V).
CL = load capacitance includes jig and probe capacitance; 57 pF.
RT = termination resistance should be equal to Zo of pulse generators.
Fig 17. Test circuit for open-drain outputs
PCA9527_1
Product data sheet
Rev. 01 — 29 June 2009
© NXP B.V. 2009. All rights reserved.
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