Rainbow Electronics ATA6625 - Manual (Page 18)

18
4957E–AUTO–10/07
ATA6623/ATA6625
Figure 8-1. Definition of Bus Timing Characteristics
11
Receiver Electrical AC Parameters of the LIN Physical Layer
LIN Receiver, RXD Load Conditions (C
RXD
): 20 pF; R
pull-up
= 2.4 k
Ω
11.1
Propagation delay of
receiver
Figure 8-1
V
S
= 7.0V to 18V
t
rx_pd
= max(t
rx_pdr
, t
rx_pdf
)
t
rx_pd
6 µs A
11.2
Symmetry of receiver
propagation delay rising
edge minus falling edge
V
S
= 7.0V to 18V
t
rx_sym
= t
rx_pdr
– t
rx_pdf
t
rx_sym
–2 +2 µs A
8. Electrical Characteristics (Continued)
5V < V
S
< 27V, –40°C < T
j
< 150°C; unless otherwise specified all values refer to GND pins.
No. Parameters Test Conditions Pin Symbol Min. Typ. Max. Unit Type*
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
TXD
(Input to transmitting node)
VS
(Transceiver supply
of transmitting node)
RXD
(Output of receiving node1)
RXD
(Output of receiving node2)
LIN Bus Signal
Thresholds of
receiving node1
Thresholds of
receiving node2
t
Bus_rec(max)
t
rx_pdr(1)
t
rx_pdf(2)
t
rx_pdr(2)
t
rx_pdf(1)
t
Bus_dom(min)
t
Bus_dom(max)
TH
Rec(max)
TH
Dom(max)
TH
Rec(min)
TH
Dom(min)
t
Bus_rec(min)
t
Bit
t
Bit
t
Bit