ATA5745-EK Atmel, ATA5745-EK Datasheet

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ATA5745-EK

Manufacturer Part Number
ATA5745-EK
Description
BOARD RCVR 433MHZ RKE/TPMS
Manufacturer
Atmel
Type
Receiver, ASK/FSKr
Datasheets

Specifications of ATA5745-EK

Frequency
433MHz ~ 435MHz
For Use With/related Products
ATA5745
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
1. Introduction
ATA5745/ATA5746 is a transparent receiver which can be applied to process the data
for two different applications, tire pressure monitoring systems (TPMS) and remote
keyless entry (RKE). The two systems can have a different data rate as well as modu-
lation type. To handle different applications, ATA5745/ATA5746 can be switched very
quickly between ASK and FSK modulation types, and, of course, between four differ-
ent baud rate ranges. The ATA5745/ATA5746 Evaluation Kit was designed for
evaluation purposes of the receiver.
The receiver can be evaluated without a microcontroller since there are eight switches
implemented for setting the receiver. The board is assembled for an operating voltage
of 3V. For operation with a 5V power supply, the on-board external circuitry of the
receiver’s power supply has to be changed (please refer to the datasheet for more
information on this issue). The RF input is matched to 50 . This simplifies the verifica-
tion of the input stage with standard RF instruments.
Figure 1-1 on page 2
the layout of the the top layer, and
test pins (Jx, where x is an index) on the board. For each test pin there is a ground pin
available in order to simplify measurement with an oscilloscope’s probe. When mea-
suring the clock signal, the load capacitance of the probe has to be taken to account.
Table 1-1 on page 3
bill of materials for the board is listed in
ATA5745/ATA5746 Evaluation Kit
shows the information important for measurement purposes. The
is a photo of an assembled board,
Getting Started with the
Figure 1-3 on page 3
Table 1-4 on page
Figure 1-2 on page 2
shows the allocation of the
4.
shows
ATA5745/
ATA5746
Evaluation Kit
Application Note
4943A–AUTO–07/06

Related parts for ATA5745-EK

ATA5745-EK Summary of contents

Page 1

... Getting Started with the ATA5745/ATA5746 Evaluation Kit 1. Introduction ATA5745/ATA5746 is a transparent receiver which can be applied to process the data for two different applications, tire pressure monitoring systems (TPMS) and remote keyless entry (RKE). The two systems can have a different data rate as well as modu- lation type ...

Page 2

... Figure 1-1. Figure 1-2. ATA5745/ATA5746 Evaluation Kit 2 Evaluation Board of the ATA5745/ATA5746 Top Layer Layout of the ATA5745/ATA5746 4943A–AUTO–07/06 ...

Page 3

... Activate the 3V power supply. 2. Set switches enabl and Rx to “1” in order to start the receiver in receiving mode. 3. Set switches BR0 and BR1 according to Table 1-2. 4943A–AUTO–07/06 ATA5745/ATA5746 Evaluation Kit Mapping of the Board Components and Designators to the Pins of ATA5745/ATA5746 Board Designator and Description ...

Page 4

... Set switch A/nF as desired to set the modulation type of the receiver: “1” for ASK Set switch S-Ctl as desired for the sensitivity reduction's functionality. Set S-Ctl to 6. Set CTRL_0 and CTRL_1 as shown in Table 1-3. Note: Table 1-4. Bill of Materials of the ATA5745/ATA5746 Components Pcs 315 MHz 433 MHz x IC1 1 ...

Page 5

... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...

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