Rainbow-electronics ATA6625 Bedienungsanleitung PDF herunterladen (Seite 18)

4957E–AUTO–10/07

ATA6623/ATA6625

Figure 8-1. Definition of Bus Timing Characteristics

Receiver Electrical AC Parameters of the LIN Physical Layer

LIN Receiver, RXD Load Conditions (C

RXD

): 20 pF; R

pull-up

= 2.4 kΩ

11.1

Propagation delay of

receiver Figure 8-1

= 7.0V to 18V

rx_pd

= max(t

rx_pdr

, t

rx_pdf

)

rx_pd

6µsA

11.2

Symmetry of receiver

propagation delay rising

edge minus falling edge

= 7.0V to 18V

rx_sym

= t

rx_pdr

– t

rx_pdf

rx_sym

–2 +2 µs A

8. Electrical Characteristics (Continued)

5V < V

< 27V, –40°C < T

< 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)

(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

Bus_rec(max)

rx_pdr(1)

rx_pdf(2)

rx_pdr(2)

rx_pdf(1)

Bus_dom(min)

Bus_dom(max)

Rec(max)

Dom(max)

Rec(min)

Dom(min)

Bus_rec(min)

Bit

1 2 ... 13 14 15 16 17 18 19 20 21 22

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