em microelectronic EMMO3 Bluetooth Module User Manual

em microelectronic EMMO3 Bluetooth Module

GENERAL DESCRIPTION

The EMMO3 is a tiny Bluetooth® 5.4 Low Energy (BLE) module based on the True-Ultra-Low-Power EM9305 System on-Chip.

The flexible architecture of the EMMO30 allows it to act as a Bluetooth® 5.4 Low Energy modem, or as a complete System-on- Module (SoM). Custom applications can execute on its efficient 32- bit ARC processor from flash with cache and DMA to optimize energy consumption. DSP and floating-point units can be exploited to implement advanced algorithms for audio and sensor fusion. Low power serial interfaces (SPI, I2C, I2S, and UART) can be used to exchange data with external sensors, memories, displays, and human-machine interfaces.

The software package includes a fully featured Bluetooth 5.4 link layer, Host Controller Interface (HCI), stack, profiles and services, and firmware-over-the-air (FOTA) updating capability. All Bluetooth 5.4 features are available on the EMMO30, including High Data Rate (HDR) and Long Range (LR) communication, Angle-of-Arrival & Angle of- Departure (AoA/AoD) for localization applications, Periodic Advertisement with Response (PAwR), as well as isochronous channels for audio applications.

The EMMO3 includes a sophisticated on-chip power management system supporting 1.5 V or 3 V batteries. The inductor less circuit for 1.5 V batteries helps further reduce the BOM in that mode. Retention of the 64 kB of RAM during sleep is controlled in 4 kB increments to reduce sleep current. A stable, low-power sleep oscillator (RC or crystal-based) minimizes power consumption while in a connected state or for RTC operation. Current consumption is minimized for all modes of the application by utilizing an efficient scheduler and memory manager.

The EMMO3 features a state-of-the-art 2.4GHz transceiver: a low power receiver with excellent sensitivity/selectivity, and a programmable transmitter.

PRODUCT OUTLINE DIMENSIONS

EMMO30 finished product outline dimensions are shown in Figure 1.

Figure 1: Complete product drawing

GENERAL OPERATING CONDITIONS

The general operating conditions are listed in Table 1: General Operating Conditions. Electrical characteristics are defined for the typical operating conditions with no more than 10% of the overall life of the active life of the product spent outside typical conditions.

MODULE PARTS LIST

ELECTRICAL SCHEMATIC

REGULATORY

EMMO3 is modular certified and complies with the following regulatory requirements:

REGULATORY INFORMATION CE

EM Microelectronic as the responsible party for regulatory compliance, declares under our sole responsibility that as delivered the described product is in conformity with the RED Radio Equipment Directive 2014/53/EU, following the provisions of ERP Directive 2009/125/EC, EU RoHS Directive 2011/65/EU, including the amendment 2015/863/EU on the restriction of the use of certain hazardous substances in electrical and electronic equipment, and carries the CE marking. Refer to emmicroelectronic.com for the signed declaration.

REGULATORY INFORMATION USA

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

• Part 15 – General emissions
• Part 15.247: 2011 – Operation within the band 2.4-2.4835GHz

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.

CLASS B DEVICE NOTICE

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 receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Note that final host products require Subpart B compliance testing with the modular transmitter installed.

Module integrator (host manufacturer) is recommended to use FCC KDB publication 996369 D04 Module Integration Guide”.

Co-location of this module with other transmitters that operate simultaneously are required to be evaluated using the FCC multi-transmitter procedures.

RF EXPOSURE SAFETY

The EMMO3 is a radio transmitter and receiver.

It is designed not to exceed the emission limits for exposure to radio frequency (RF) energy set by the Federal Communications Commission.

This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

PERMITTED ANTENNA

This radio transmitter model, FCC ID: 2ACQR-EMMO3 has been approved by FCC to operate with the antenna types listed below with the maximum permissible gain indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.

LABELLING REQUIREMENTS FOR THE HOST DEVICE

The host device shall be properly labelled to identify the modules within the host device. The certification label of the module shall be clearly visible at all times when installed in the host device, otherwise the host device must be labelled to display the IC of the module, preceded by the words “Contains transmitter module”, or the word “Contains”, or similar wording expressing the same meaning, as follows:

Contains FCC ID: 2ACQR-EMMO3

REGULATORY INFORMATION CANADA

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

This device complies with Industry Canada’s license-exempt RSSs. Operation is subject to the following two conditions:

1. This device may not cause interference; and.
2. This device must accept any interference, including interference that may cause undesired operation of the device.

• ICES-003 – General emissions
• RSS-210: 2010 – Low-power License exempt Radio Communication Devices

RF EXPOSURE SAFETY

The EMMO3 is a radio transmitter and receiver. It is designed not to exceed the emission limits for exposure to radio frequency (RF) energy set by the ISED. This transmitter must not be colocated or operating in conjunction with any other antenna or transmitter.

PERMITTED ANTENNA

This radio transmitter model, IC: 12155A-EMMO3 has been approved by the ISED to operate with the antenna types listed below with the maximum permissible gain indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.

CAN ICES-3 (B)/NMB-3(B)

This Class B digital apparatus complies with Canadian ICES-003.

LABELLING REQUIREMENTS FOR THE HOST DEVICE

The host device shall be properly labelled to identify the modules within the host device. The certification label of the module shall be clearly visible at all times when installed in the host device, otherwise the host device must be labelled to display the IC of the module, preceded by the words “Contains transmitter module”, or the word “Contains”, or similar wording expressing the same meaning, as follows:

Contains IC: 12155A- EMMO3

CUSTOMER SUPPORT

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EMMO3, Version 1, 10-Sep-25
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