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Anaren A2541R24x User Manual

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Anaren Integrated Radio
A2541R24x User's Manual
Release Date: 11/22/13

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Summary of Contents for Anaren A2541R24x

  • Page 1 Anaren Integrated Radio A2541R24x User’s Manual Release Date: 11/22/13...
  • Page 2 THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 3: Table Of Contents

    USER’S MANUAL Models A2541R24A and A2541R24C Contents Overview ................................5 1.1. A2541R24A ..............................5 1.2. A2541R24C ..............................6 1.3. Features............................... 6 1.4. Theory of Operation..........................7 1.5. Applications ............................. 10 Approvals and Usage ........................... 11 2.1. Product Approvals ..........................11 2.1.1.
  • Page 4 4.3.1. Manual Mounting Procedure ......................32 4.3.2. Automated Mounting Procedure ...................... 33...

  • Page 5: Overview

    A2541R24x – User’s Manual Page 5 of 36 Release Date 11/22/13 1. Overview The A2541R24A and A2541R24C are surface mount 2.4GHz RF transceivers incorporating ® Bluetooth SMART technology per the Bluetooth v4.0 core specification. The A2541R24A has an integral antenna, whereas the A2541R24C utilizes an external antenna through a U.FL connector (see Table 1).

  • Page 6: A2541R24C

    A2541R24x – User’s Manual Page 6 of 36 Release Date 11/22/13 A2541R24C 1.2. The A2541R24C has a compact antenna connector that allows for locating the antenna away from the module due to form/function or in order to exit a metal enclosure. Please see Table 1 for a list of approved antennas.

  • Page 7: Theory Of Operation

    A2541R24x – User’s Manual Page 7 of 36 Release Date 11/22/13  Very Small package size: 11mm x 19mm x 2.5mm  Approximate weight 0.7 grams Theory of Operation 1.4. The A2541R24A and A2541R24C modules operate in the global 2.4 GHz ISM/SRD frequency band.
  • Page 8 A2541R24x – User’s Manual Page 8 of 36 Release Date 11/22/13 Figure 2 The functionality of the A2541R24C, using an external antenna The description of the functional blocks shown in Figure 1 and Figure 2 is given as follows: ...
  • Page 9 A2541R24x – User’s Manual Page 9 of 36 Release Date 11/22/13 o Power management ensures a stable supply for the internal functions, as well as providing means for a low power sleep mode.  CPU and Memory o The 8051 CPU core used in the CC2541 device is a single-cycle 8051- compatible core.

  • Page 10: Applications

    A2541R24x – User’s Manual Page 10 of 36 Release Date 11/22/13 Figure 3 Internal connections for TPS62730 Step-Down Converter Table 1 Approved Antennas Item Part Number Manufacturer Type Gain (dBi) Integral part of A2541R24A Anaren Integral Antenna 66089-2406 Anaren Monopole whip, 6 mm lead...

  • Page 11: Approvals And Usage

    A2541R24x – User’s Manual Page 11 of 36 Release Date 11/22/13 2. Approvals and Usage The A2541R24A and A2541R24C have been designed to meet many national regulations for worldwide ISM band use. In particular, the radio modules have been certified to the following standards.

  • Page 12: End User Manual

    A2541R24x – User’s Manual Page 12 of 36 Release Date 11/22/13 2.1.1.2. End User Manual The end user manual should include the following statement: 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.
  • Page 13 A2541R24x – User’s Manual Page 13 of 36 Release Date 11/22/13 From section 3.2 RSS-Gen, Issue 3, December 2010, Modular Approval for Category I Equipment or Category II Equipment: “Modular approval permits the installation of the same module in a host device or multiple host devices without the need to recertify the device.

  • Page 14: Ic Labeling Requirements

    A2541R24x – User’s Manual Page 14 of 36 Release Date 11/22/13 In section 7.1.2 Transmitter Antenna, it has been mentioned that the user manuals for transmitters equipped with detachable antennas shall also contain the following notice in a conspicuous location:...
  • Page 15 A2541R24x – User’s Manual Page 15 of 36 Release Date 11/22/13 thereof). Each model shall be identified by a unique combination of a model number and a certification number, which are assigned as described below in this section. The label shall be securely affixed to a permanently attached part of the device, in a location where it is visible or easily accessible to the user, and shall not be readily detachable.

  • Page 16: Rf Exposure

    A2541R24x – User’s Manual Page 16 of 36 Release Date 11/22/13 2.1.2.2. RF Exposure All transmitters regulated by IC must comply with RF exposure limits as set forth in RSS-102, Issue 4, section 4, “Exposure Limits”. Furthermore RSS-102, Issue 4, Section 2 “Certification Requirements”, provides assistance in determining the specific requirements for compliance.

  • Page 17: Bluetooth Special Interest Group (Sig)

    A2541R24x – User’s Manual Page 17 of 36 Release Date 11/22/13 The end user is responsible for ensuring compliance with harmonized frequencies and labeling requirements for each country the end device is marketed and sold. For more information see: ...

  • Page 18: Classic Bluetooth

    A2541R24x – User’s Manual Page 18 of 36 Release Date 11/22/13 assessment) will enable the user to find channels with minimal interference from WLAN devices. Figure 4 WLAN channels 2.2.2. Classic Bluetooth Classic Bluetooth divides the 2.402-2.480 GHz band into 79 channels, each of which is 1MHz wide.

  • Page 19: Time Critical Data

    A2541R24x – User’s Manual Page 19 of 36 Release Date 11/22/13 2.2.5. Time critical data If the user requires specific time critical data throughput that cannot tolerate the delays of potentially many re-transmissions, the user is encouraged to implement an environment-aware algorithm that periodically monitors/scans the frequency band and maintains a list of “best...

  • Page 20: Approved Usage

    A2541R24x – User’s Manual Page 20 of 36 Release Date 11/22/13 Approved Usage 2.3. The A2541R24A and A2541R24C modules have been approved for use in the US, Canada and Europe. The user is encouraged to use minimum power required to establish a link, thus minimizing interference.

  • Page 21: Europe

    A2541R24x – User’s Manual Page 21 of 36 Release Date 11/22/13 Table 3 Output Power vs. PA Table Value (tolerance +/- 1.5 dB) Power (dBm) PA_Table Value [Hex] 0xEF 0xE1 -1.5 0xD1 -3.0 0xC1 -5.0 0xB1 -7.0 0xA1 -9.5 0x91 -11.0...

  • Page 22: Electrical Characteristics

    A2541R24x – User’s Manual Page 22 of 36 Release Date 11/22/13 3. Electrical Characteristics Absolute Maximum Ratings 3.1. Under no circumstances shall the absolute maximum ratings given in Table 4 be violated. Stress exceeding one or more of the limiting values may cause permanent damage to the device.

  • Page 23: Operating Conditions

    A2541R24x – User’s Manual Page 23 of 36 Release Date 11/22/13 Operating Conditions 3.2. Table 5 Operating conditions Parameter Unit Condition/Note Supply Voltage (Vdd) ˚C Temperature Range Pin Out 3.3. The A2541R24A and A2541R24C radios share a common pin-out and foot print, thus enabling the use of the same application PCB layout for US/Europe and low power (short range) versus higher power (long range).
  • Page 24 A2541R24x – User’s Manual Page 24 of 36 Release Date 11/22/13 Table 6 A2541R24x10 pin descriptions with references to chip pins Pin Name Pin Type Description 1, 3,12, 14, Common Connect to GND 22, 34 Ground Do Not Connect. Connecting this pin to anything will...

  • Page 25: A2541R24X20 (Module With Emmoco Em-Ware Firmware)

    A2541R24x – User’s Manual Page 25 of 36 Release Date 11/22/13 3.3.2. A2541R24x20 (Module with Emmoco EM-Ware Firmware) Where applicable: NC = “NO Connection”. Pin is NOT connected internally. DNC = “Do Not Connect”. reserved for internal use, ensure mating footprint pads are isolated.
  • Page 26 A2541R24x – User’s Manual Page 26 of 36 Release Date 11/22/13 Table 7 A2541R24x20 pin descriptions with references to chip pins Pin Name Pin Type Description 1, 3,12, 14, Common Connect to GND 22, 34 Ground Do Not Connect. Connecting this pin to anything will...

  • Page 27: Recommended Layout (Dimensions In Mm)

    A2541R24x – User’s Manual Page 27 of 36 Release Date 11/22/13 Recommended Layout 3.4. (dimensions in mm) Figure 7 Recommended PCB footprint.
  • Page 28 A2541R24x – User’s Manual Page 28 of 36 Release Date 11/22/13 Figure 8 Recommended Layout for GND vias...

  • Page 29: Power Supply Considerations

    A2541R24x – User’s Manual Page 29 of 36 Release Date 11/22/13 Figure 9 Mounting the module in a corner Figure 10 Mounting the module along an edge “No GND” area is optional for A2541R24C modules. It may still be provided for compatibility with the internal antenna version (A2541R24A).

  • Page 30: Mechanical And Process

    A2541R24x – User’s Manual Page 30 of 36 Release Date 11/22/13 4. Mechanical and Process Radio Module Details 4.1. (dimensions in mm) 4.1.1. A2541R24A Figure 11 A2541R24A dimensions 4.1.2. A2541R24C Figure 12 A2541R24C dimensions...

  • Page 31: Packaging Details (Dimensions In Mm)

    A2541R24x – User’s Manual Page 31 of 36 Release Date 11/22/13 Packaging Details 4.2. (dimensions in mm) AIR modules are available in Matrix Tray and Tape & Reel packaging for high-volume assembly. Details of packaging provided below: 4.2.1. Matrix Tray Packaging Figure 13 A2541R24AxxGM and A2541R24CxxGM Matrix Tray Packaging Detail (27/Tray) 4.2.2.

  • Page 32: Soldering

    A2541R24x – User’s Manual Page 32 of 36 Release Date 11/22/13 Soldering 4.3. AIR Modules may be mounted either manually (for prototyping or low volume production), or automatically for high-volume production. A no-clean tin/silver/copper (SAC) solder is recommended, however lead based no-clean pastes may also be used.
  • Page 33 A2541R24x – User’s Manual Page 33 of 36 Release Date 11/22/13 4.3.2. Automated Mounting Procedure The AIR Radio Module recommended solder reflow profile is based on IPC/JEDEC J-STD-020.
  • Page 34 A2541R24x – User’s Manual Page 34 of 36 Release Date 11/22/13...
  • Page 35 A2541R24x – User’s Manual Page 35 of 36 Release Date 11/22/13 DOCUMENT HISTORY Date Author Change Note No./Notes 05/16/13 Sula Initial Draft 05/19/13 Richardson Updated RF Exposure 05/22/13 Richardson Updated RF Exposure 06/03/13 Richardson Updated multiple sections 10/14/13 Sula Updated multiple sections...
  • Page 36 For a full list of our franchised distributors, please visit our website: http://www.anaren.com/air/ Anaren Microwave, Inc. Anaren Microwave (Europe), Inc. Anaren Communication Suzhou Co. Ltd. 6635 Kirkville Road 12 Somerset House, Suite 16 & 17 No.1 Long Hui Street East Syracuse, NY 13057...

This manual is also suitable for:

A2541r24 seriesA2541r24aA2541r24c

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