ATA5830N-PNQW Atmel, ATA5830N-PNQW Datasheet - Page 11

• Manufacturer Part Number: ATA5830N-PNQW
• Manufacturer: Atmel

Specifications of ATA5830N-PNQW

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Figure 1-2.
9208DS–RKE–07/11
SAW
Typical 5V Application Circuit with One Wire Control
Figure 1-2
delivered from the LIN transceiver ATA6625 device. The application can be directly connected
to vehicle's wiring harness. In this case, the pin PB4 (PWRON) is directly connected to VS and
the Atmel
after the software in the Flash asserts the EN pin on ATA6625 to HIGH. The system can be
completely switched on or off with a command over the one wire bus. This application is used
when the external host microcontroller must be separated over a distance from the Atmel
ATA5830 such as systems having remote antennas integrated into window glass. In these sit-
uations, the Atmel ATA5830 can work autonomously and communicate to external host
microcontroller on a 1 wire bus.
The Application software within the 6KB Flash, together with 24KB ROM firmware, is used for
the control of the Atmel ATA5830 and Atmel ATA6625. A simplified LIN compliant physical
layer can be used for one wire communication. The Atmel ATA5830 does not natively support
one wire commands. However, through the use of application Flash software one wire com-
munication can be achieved.
Please refer to the note in the previous example
4.5 to 5.5V supply and its distribution within the Atmel
nal 50k
connected to ground. The ANT_Tune pin has to be left open. Notes about RF decoupling and
supply circuitry are the same as application shown in
1
2
3
4
5
6
7
8
®
RFIN_LB
RFIN_HB
SPDT_RX
SPDT_ANT
ANT_TUNE
SPDT_TX
RF_OUT
VS_PA
pull-up resistors and can be left open. But, ports PB1, PB2 and PB5 must be
shows a typical vehicle side application circuit running from a 5V voltage regulator
ATEST
ATA5830 enters the IDLEMode upon power up of the ATA6625 and stays there
32
_IO1
TEST
9
_EN
31
10
ATEST
_IO2
30
11
ATA5830
12
29
Atmel
13
28
27
14
26
15
VS
VS
16
25
DGND
DVCC
PB2
PB1
PB0
PC5
PC4
PC3
Atmel ATA5830/ATA5830N
VS = 5V
24
23
22
21
20
19
18
17
(Figure 1-4 on page
Figure 1-4 on page
®
ATA5830. Ports PC0..PC2 have inter-
RXD
TXD
NRES
VCC
9) regarding the use of a
ATA6625
Atmel
LIN
9.
GND
LIN
EN
VS
+
Battery
12V
11