Datasheet > ATA5830N_14

ATA5830N_14

更新时间： 2022-02-26 13:19:32

品牌	Logo	应用领域
爱特美尔 - ATMEL		/
页数	文件大小	规格书
24页	862K
描述
UHF ASK/FSK Transceiver

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ATA5830N_14 数据手册

Figure 1-5. Typical 5V Application Circuit with One Wire Control

ATEST ATEST

_IO1 _IO2

PB2

PB1

PB0

RFIN_LB

RFIN_HB

RXD

TXD

LIN

GND

Atmel

SPDT_RX

SPDT_ANT

ANT_TUNE

SPDT_TX

ATA6625

LIN

SAW

DGND

DVCC

PC5

Atmel

ATA5830

NRES

VCC

RF_OUT

VS_PA

PC4

PC3

12V

TEST

_EN

Battery

VS = 5V

Figure 1-5 shows a typical vehicle side application circuit running from a 5V voltage regulator 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^®ATA5830 enters the IDLEMode upon power up of the ATA6625 and

stays there 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 situations, 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

communication can be achieved.

Please refer to the note in the previous example (Figure 1-4 on page 9) regarding the use of a 4.5 to 5.5V supply and its

distribution within the Atmel ATA5830. Ports PC0..PC2 have internal 50kΩ pull-up resistors and can be left open. But, ports

PB1, PB2 and PB5 must be 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 Figure 1-4 on page 9.

ATA5830/ATA5830N [SUMMARY DATASHEET]

9208FS–RKE–06/13

1...7 8 91011 12 13...24

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