TJA1086G All information provided in this document is subject to legal disclaimers. © NXP B.V. 2017. All rights reserved.
Product data sheet Rev. 1 — 13 July 2017 44 of 64
NXP Semiconductors
TJA1086G
FlexRay active star coupler)
Transmit path
t
d(TXD-bus)
delay time from TXD to bus AS_Normal; see Figure 10
[1]
DATA_0 - - 75 ns
DATA_1 - - 75 ns
t
d(TXD-bus)
delay time difference from TXD to
bus
between DATA_0 and DATA_1;
AS_Normal
[1]
[2]
5- +5ns
t
d(TXD-TRXD)
delay time from TXD to TRXD AS_Normal; see Figure 10
[1]
DATA_0 - - 60 ns
DATA_1 - - 60 ns
t
d(TXD-TRXD)
delay time difference from TXD to
TRXD
between DATA_0 and DATA_1;
AS_Normal
[1]
5- +5ns
t
d(TRXD-bus)
delay time from TRXD to bus AS_Normal; see Figure 12
DATA_0 - - 75 ns
DATA_1 - - 75 ns
t
d(TRXD-bus)
delay time difference from TRXD
to bus
between DATA_0 and DATA_1;
AS_Normal
[2]
5- +5ns
t
d(TXEN-busact)
delay time from TXEN to bus
active
AS_Normal; from idle to active - - 175 ns
t
d(TXEN-busidle)
delay time from TXEN to bus idle AS_Normal; from active to idle - - 150 ns
t
d(TXEN-RXD)
delay time from TXEN to RXD - - 150 ns
t
d(TRXD-busact)
delay time from TRXD to bus
active
t
det(act)(TRXD)
+ t
d(TRXD-bus)
--275ns
t
d(TRXD-busidle)
delay time from TRXD to bus idle t
det(idle)(TRXD)
+ t
d(TRXD-bus)
--275ns
t
d(busact-TRXD)
delay time from bus active to
TRXD
t
det(act)(bus)
+ t
d(bus-TRXD)
--285ns
t
d(busidle-TRXD)
delay time from bus idle to TRXD t
det(idle)(bus)
+ t
d(bus-TRXD)
--275ns
t
d(TRXDact-RXD)
delay time from TRXD activity
detection to RXD
t
det(act)(TRXD)
+ t
d(TRXD-RXD)
--260ns
t
d(busact-bus)
delay time from bus active to bus from one branch to another,
including activity detection time;
t
det(act)(bus)
+ t
d(bus-bus)
--330ns
t
d(busidle-bus)
delay time from bus idle to bus from one branch to another,
including idle detection time;
t
det(idle)(bus)
+ t
d(bus-bus)
--320ns
Receive path
t
d(bus-TRXD)
delay time from bus to TRXD AS_Normal; see Figure 11
DATA_0 - - 75 ns
DATA_1 - - 75 ns
t
d(bus-TRXD)
delay time difference from bus to
TRXD
between DATA_0 and DATA_1 AS_
Normal; V
cm
=2.5V
R
pu
=200
[2]
[3]
5- +5ns
Table 16. Dynamic characteristics
…continued
All parameters are guaranteed for V
BAT
= 4.45 V to 60 V; V
CC
= 4.45 V to 5.25 V; V
BUF
= 4.45 V to 5.25 V; V
IO
= 2.55 V to
5.25 V; T
vj
=
40
C to + 150
C; R
bus
= 40
, C
bus
= 100 pF; C
RXD
= 15 pF; C
TRXD0
= C
TRXD1
= 50 pF and C
SDO
= 50 pF
unless otherwise specified. All voltages are defined with respect to ground; positive currents flow into the IC.
Symbol Parameter Conditions Min Typ Max Unit
