ATA6663 Ver la hoja de datos (PDF) - Atmel Corporation
Número de pieza
componentes Descripción
Fabricante
ATA6663 Datasheet PDF : 20 Pages
| |||
6. Electrical Characteristics (Continued)
5V < VS < 27V, Tj = –40°C to +150°C
No. Parameters
Test Conditions
Pin Symbol Min. Typ. Max. Unit
LIN Bus Driver AC Parameter with Different Bus Loads
10 Load 1 (small): 1nF, 1kΩ ; Load 2 (large): 10nF, 500Ω ; RRXD = 5kΩ ; CRXD = 20pF;
Load 3 (medium): 6.8nF, 660Ω characterized on samples; 10.1 and 10.2 specifies the timing parameters for proper
operation at 20Kbit/s, 10.3 and 10.4 at 10.4Kbit/s.
10.1 Duty cycle 1
THRec(max) = 0.744 × VS
THDom(max) = 0.581 × VS
VS = 7.0V to 18V
6
tBit = 50µs
D1 = tbus_rec(min) / (2 × tBit)
10.2 Duty cycle 2
THRec(min) = 0.422 × VS
THDom(min) = 0.284 × VS
VS = 7.0V to 18V
6
tBit = 50µs
D2 = tbus_rec(max) / (2 × tBit)
10.3 Duty cycle 3
THRec(max) = 0.778 × VS
THDom(max) = 0.616 × VS
VS = 7.0V to 18V
6
tBit = 96µs
D3 = tbus_rec(min) / (2 × tBit)
10.4 Duty cycle 4
THRec(min) = 0.389 × VS
THDom(min) = 0.251 × VS
VS = 7.0V to 18V
6
tBit = 96µs
D4 = tbus_rec(max) / (2 × tBit)
11
Receiver Electrical AC Parameters of the LIN Physical Layer
LIN receiver, RXD load conditions: CRXD = 20pF, Rpull-up = 5kΩ
11.1
Propagation delay of receiver
(see Figure 6-1 on page 15)
trec_pd = max(trx_pdr , trx_pdf)
VS = 7.0V to 18V
1
Symmetry of receiver
11.2 propagation delay rising edge
minus falling edge
trx_sym = trx_pdr – trx_pdf
VS = 7.0V to 18V
1
D1
0.396
D2
D3
0.417
D4
trx_pd
trx_sym
–2
0.581
0.590
6
µs
+2 µs
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Type*
A
A
A
A
A
A
14 Atmel ATA6663/ATA6664
9146D–AUTO–09/10
Share Link: 