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APPLICATION NOTE
ATA6663/ATA6664 Development Board
ATA6663/ATA6664
Introduction
®
The development board for the Atmel
ATA6663/ATA6664 (Atmel ATA6663-EK, ATA6664-
EK) is designed to give users a quick start using these ICs and prototyping and testing new
designs. The Atmel ATA6663/ATA6664 is a fully integrated LIN transceiver complying with
the LIN 2.0, 2.1 specification and SAEJ2602-2. The devices are nearly identical, the only
difference is that the TXD dominant timeout-timer is disabled at the Atmel ATA6664 so this
device is able to send a static low signal on the LIN bus. The Atmel ATA6663 is the succes-
sor IC of the Atmel ATA6662 with an enhanced EMC performance and improved wake-up
behavior resulting in a very low sleep mode current consumption even in the case of a
floating bus or a short-circuit between the bus line and GND.
The ICs are the interface between the LIN protocol handler and the physical layer and is
designed to handle the low-speed data communication in vehicles for example in conve-
nience electronics. Improved slope control on the LIN bus ensures secure data
communication of up to 20kBaud.
This document has been created as a quick start guide for using the development board of
the Atmel ATA6663/ATA6664. Please refer to the corresponding datasheet for more
detailed information about the Atmel ATA6663/ATA6664 itself.
9201B-AUTO-06/15
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Table of Contents
Related Manuals for Atmel ATA6663-EK
Summary of Contents for Atmel ATA6663-EK
- Page 1 TXD dominant timeout-timer is disabled at the Atmel ATA6664 so this device is able to send a static low signal on the LIN bus. The Atmel ATA6663 is the succes- sor IC of the Atmel ATA6662 with an enhanced EMC performance and improved wake-up behavior resulting in a very low sleep mode current consumption even in the case of a floating bus or a short-circuit between the bus line and GND.
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Page 2: Development Board Features
Wake-up pulse via an on-board switch Quick Start The development board for the Atmel ATA6663/ATA6664 is shipped with all components necessary to immediately start the development of a LIN slave node. Connecting an external 12V DC power supply between the terminals VBAT and GND puts the IC in fail-safe mode. In this mode, the INH pin is switched to the VS level which can be used to enable an external voltage regulator (not included on the board). -
Page 3: Hardware Description
Hardware Description In the following sections only the normal operating conditions are described. Refer to the corresponding datasheet for detailed information about the features mentioned. Power Supply (VBAT, +5V and GND) The development board requires an external 5.7V to 27V DC power supply between the terminals VBAT and GND. The input circuit is protected against inverse polarity with the protection diode D1, resulting in a difference between the VBAT and VS level of approximately 0.7V. - Page 4 With this measure the current consumption in the case of a short circuit between LIN and GND can be reduced to a minimum, because the Atmel ATA6663/ATA6664 can be switched into sleep mode and therefore the INH output is off.
- Page 5 Schematic and Layout of the Atmel ATA6663/ATA6664 Development Board Figure 2-1. Schematic of the Development Board for the Atmel ATA6663/ATA6664 LL4148 100Ω/1W VBAT 22μF/50V 100nF LL4148 BZG04-33 10kΩ 100nF 1kΩ 4.7kΩ Atmel ATA6661/ ATA6662/ WAKE ATA6663/ ATA6664 220pF WAKE Atmel ATA6661-EK 2.7kΩ...
- Page 6 Figure 2-3. Atmel ATA6663/ATA6664 Development Board; Top Side, Top View Figure 2-4. Atmel ATA6663/ATA6664 Development Board; Bottom Side, Top View (Transparent PCB View) ATA6663/ATA6664 [APPLICATION NOTE] 9201B–AUTO–06/15...
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Page 7: Revision History
Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Revision No. History Put document in the latest template 9201B-AUTO-06/15 ATA6663/ATA6664 [APPLICATION NOTE] 9201B–AUTO–06/15... - Page 8 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 THE ATMEL TERMS AND CONDITIONS OF SALES LOCATED ON THE ATMEL WEBSITE, 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.
- Page 9 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Microchip ATA6663-EK ATA6664-EK...
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