Datasheet

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PCA9614 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved. Product data sheet Rev. 1 — 11 April 2014 11 of 27 NXP Semiconductors
PCA9614
2-channel multipoint Fm+ differential I
2
C-bus buffer
Remark: Keep drops as short as possible.
Remark: There is only one ground pin on the PCA9614, so the single-ended I
2
C-bus signals that are not ground offset tolerant must be referenced to the ground pin on
the part. And any ground offset must be on the differential side where the differential input and output can tolerate a ground offset of up to 0.5  V
DD(B)
.
Fig 7. PCA9614 application diagram; V
DD
and V
SS
are routed through the cable
V
DD(B)
PCA9614
SCL
SDA
SLAVE
MASTER
DSCLP
DSCLM
DSDAP
DSDAM
V
SS
002aag409
CARD
PCA9614
SLAVE MASTER
CARD
PCA9614
V
SS
V
DD
V
SS
V
DD
PCA9614
SLAVE
MASTER
CARD
optional
V
DD(B)
V
DD(B)
termination
V
DD(A)
V
DD(A)
SLAVE MASTER
CARD
V
DD(A)
V
DD(A)