Microchip Technology SAMW25 Modular Transmitter User Manual

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Document ID	2752137
Application ID	8kT9mTD17A4WKTcuLalHPw==
Document Description	User Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	13.2kB (164954 bits)
Date Submitted	2015-09-17 00:00:00
Date Available	2015-09-17 00:00:00
Creation Date	2015-08-18 15:16:26
Producing Software	Microsoft® Word 2013
Document Lastmod	2015-08-18 15:16:26
Document Title	Microsoft Word - SAMW25-MR210PA User Manual 10_30_14_1.docx
Document Creator	Microsoft® Word 2013
Document Author:	Rperez

ATSAMW25H18‐MR510PB DESIGN‐IN GUIDLINES
The ATSAMW25H18-MR510PB device is a standalone WiFI end point, where a complete small
application can be executed on the module by itself. For example – a remote wifi sensor or keypad
with a few inputs.
The following connections are required for the proper operation:
2.7V – 4.2V VBAT supply to power the WiFi transmitter Power Amplifier and on board voltage
regulators.
1.8V – 3.6V I/O supply
RESET signal to the module
When the module is placed on the motherboard, a provision for the antenna must be made. There should
be nothing under the portion of the module which contains the antenna. This means the antenna should
not be placed directly on top of the motherboard PCB. This can be accomplished by, for example,
placing the module at the edge of the board such that the antenna extends beyond the board edge by
6.5mm. Alternatively, a cut out in the motherboard can be provided under the antenna. The cutout should
be at least 22mm x 6.5mm. Ground vias spaced 2.5mm apart should be placed all around the perimeter
of the cutout. No large components should be placed near the antenna.
Each module has a label with an FCC ID, however the product User Manual must contain the following
statement: “This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation”.
The module must be installed into the end product to provide a separation distance of at least 6.7 cm
from all persons and must not be co-located or operating in conjunction with any other antenna or
transmitter.
If the module’s label is not visible when installed, then an additional permanent label referring to the
enclosed module: “Contains Transmitter Module FCC ID: 2ADHKSAMW25” must be installed on the
product in a visible location.
This equipment has been tested and found to comply with the limits for a class B digital device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
- Reorient or relocate the module/product.
- Increase the separation between the equipment and module/product.
- Consult the dealer or an experienced radio/TV technician for help.
Changes and modifications made to the equipment without the approval of manufacturer could void the
user's authority to operate this equipment.

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Page Count                      : 1
Language                        : en-US
Tagged PDF                      : Yes
Title                           : Microsoft Word - SAMW25-MR210PA User Manual 10_30_14_1.docx
Author                          : Rperez
Creator                         : Microsoft® Word 2013
Create Date                     : 2015:08:18 15:16:26-07:00
Modify Date                     : 2015:08:18 15:16:26-07:00
Producer                        : Microsoft® Word 2013

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