Certifications
Bluetooth SIG Certified [ Verify our SIG certification of LM746 ]
OTHER DECLARATIONS
ECCN / CCATS
Case Studies
Lead Times Update 09 May 2024
LM Technologies is continuously liaising with suppliers to reduce any lead times where possible. We have updated lead times for new orders for the following products: LM506 – 10 Weeks…
Bluetooth® 5 Dual Mode Audio Module – LM746
£100.00
The LM746 is an extremely versatile and cost effective Bluetooth® 5 compliant solution, enabling audio data to be wirelessly communicated between audio devices, using a Bluetooth® and Bluetooth low energy connection. It’s sound enhancement features make it a perfect fit within your premium audio device.
[av_button label=’Datasheet’ link=’manually,https://www.lm-technologies.comlm_downloads/LM746_DATASHEET.pdf’ link_target=’_blank’ size=’small’ position=’left’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’dark’ custom_bg=’#444444′ custom_font=’#ffffff’]
[av_button label=’Development Kit’ link=’manually,https://www.lm-technologies.comproduct/bluetooth-multimedia-development-kit-lm558/’ link_target=’_blank’ size=’small’ position=’left’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’dark’ custom_bg=’#444444′ custom_font=’#ffffff’]
[av_button label=’Where to Buy’ link=’page,471′ link_target=” size=’small’ position=’right’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’dark’ custom_bg=’#444444′ custom_font=’#ffffff’]
Available: Out of stock
-
Tech Spec
Additional Information
Wireless Standard Backward Compatibility Module Type - Programmable (Configurable with AT Commands)
Frequency 2.4 GHz
Profiles A2DP, AVRCP, GATT-Based, HFP, HSP, Partially Supported SPP
Programming Interface SPI
Interfaces - UART
- USB
Audio Interfaces I2S, PCM, SPDIF
Antenna IC Antenna
Dimensions - 23.9mm x 16mm x 2.3mm
Weight - 1.38g +/- 0.25g tolerance
Operating Temperature - -20°C to +75°C
Tx Output Power - 2dBm (Bluetooth® v2.0, v.2.1)
Rx Sensitivity - -90dBm (Bluetooth® v2.0, v.2.1)
Development Kit LM558
Compliance Certifications -
-
Description
The LM746 Bluetooth® Dual Mode audio module is an extremely versatile and cost effective solution. Enabling audio data to be wirelessly communicated between audio devices using a Bluetooth® v2.0, v2.1 and Bluetooth® v4.0, v4.1, (or 5 compliant) connection. It’s sound enhancement features, makes it a perfect fit within your premium audio device. The sound enhancement features includes CSR’s aptX® audio technology. Providing CD-like quality over a Bluetooth® connection. And CSR’s cVc audio technology for noise cancellation. Perfectly suited to wireless headphones, speakers and hand-free headsets. This standalone module allows the developer to connect a microphone, speakers, capacitive touch sensors and other I/O devices. Running the user application without using an external MCU. LM offer application support to the developer and can create new user applications for the module. Your developed user application and settings can be preloaded to the LM746, simplifying the manufacturing and testing process. It’s SMT side and bottom pads allows for easy integrations into your embedded system.Typical Applications
- Wireless headphones and speakers
- Hand-free headsets
- Automotive infotainment systems
- Home entertainment devices
- Audio adapters
-
Features
- Application Firmware Support
- aptX® codec (including support for SCMS-T) and Faststream codec
- CSR’s cVc noise-cancellation technology
- Integrated 16-bit Stereo Audio CODEC
- SBC, MP3 and AAC decoder
- 6 Capacitive touch sensor input interfaces
- Microphone input and Speaker output interfaces
Case Studies
Lead Times Update 09 May 2024
LM Technologies is continuously liaising with suppliers to reduce any lead times where possible. We have updated lead times for new orders for the following products: LM506 – 10 Weeks…
Resources
Access all the information for our products - some documentation my require an account to access.
The LM746 Bluetooth® Dual Mode audio module is an extremely versatile and cost effective solution.
Enabling audio data to be wirelessly communicated between audio devices using a Bluetooth® v2.0, v2.1 and Bluetooth® v4.0, v4.1, (or 5 compliant) connection. It’s sound enhancement features, makes it a perfect fit within your premium audio device.
The sound enhancement features includes CSR’s aptX® audio technology. Providing CD-like quality over a Bluetooth® connection. And CSR’s cVc audio technology for noise cancellation.
Perfectly suited to wireless headphones, speakers and hand-free headsets. This standalone module allows the developer to connect a microphone, speakers, capacitive touch sensors and other I/O devices.
Running the user application without using an external MCU. LM offer application support to the developer and can create new user applications for the module.
Your developed user application and settings can be preloaded to the LM746, simplifying the manufacturing and testing process. It’s SMT side and bottom pads allows for easy integrations into your embedded system.
Typical Applications
- Wireless headphones and speakers
- Hand-free headsets
- Automotive infotainment systems
- Home entertainment devices
- Audio adapters
Additional information
| Wireless Standard | |
|---|---|
| Backward Compatibility | |
| Module Type |
|
| Frequency | 2.4 GHz |
| Profiles | A2DP, AVRCP, GATT-Based, HFP, HSP, Partially Supported SPP |
| Programming Interface | SPI |
| Interfaces |
|
| Audio Interfaces | I2S, PCM, SPDIF |
| Antenna | IC Antenna |
| Dimensions |
|
| Weight |
|
| Operating Temperature |
|
| Tx Output Power |
|
| Rx Sensitivity |
|
| Development Kit | LM558 |
| Compliance | |
| Certifications | |
Related products
-
RS232 9 Pin Serial Gender Changer – LM036
£100.00Read moreThe RS232 9 Pin Serial Gender Changer – LM036 is primarily used with our LM048 and LM058 Bluetooth® Serial Adapters. In order to support various serial connections depending on the printer manufacturers which our Bluetooth® Serial Adapters are connected to often you may require a RS232 Gender Changer.
[av_button label=’Where to Buy’ link=’page,471′ link_target=” size=’small’ position=’right’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’dark’ custom_bg=’#444444′ custom_font=’#ffffff’]
Compare -
Bluetooth® v4.1 low energy Module with IPEX – LM930
£100.00Read moreLM930 is a Bluetooth® low energy module that runs it’s own host stack under the Bluetooth® v4.1 specification.
[av_button label=’Datasheet’ link=’manually,https://www.lm-technologies.comlm_downloads/LM930_DATASHEET.pdf’ link_target=’_blank’ size=’small’ position=’left’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’dark’ custom_bg=’#444444′ custom_font=’#ffffff’]
[av_button label=’Development Kit’ link=’manually,https://www.lm-technologies.comproduct/bluetooth-smart-development-and-evaluation-product-family-lm53x/’ link_target=’_blank’ size=’small’ position=’left’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’dark’ custom_bg=’#444444′ custom_font=’#ffffff’]
[av_button label=’Where to Buy’ link=’page,471′ link_target=” size=’small’ position=’right’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’dark’ custom_bg=’#444444′ custom_font=’#ffffff’]
Compare -
WiFi and Dual Mode Bluetooth® 4.2 Combination Module – LM813
£100.00Read moreThe LM813 Series Combination Module supports both WiFi 802.11ac with data rates up to 433Mbps and Bluetooth® 4.2.
[av_button label=’Datasheet’ link=’manually,https://www.lm-technologies.comlm_downloads/LM813_DATASHEET.pdf’ link_target=’_blank’ size=’small’ position=’left’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’dark’ custom_bg=’#444444′ custom_font=’#ffffff’]
[av_button label=’Where to Buy’ link=’page,471′ link_target=” size=’small’ position=’right’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’dark’ custom_bg=’#444444′ custom_font=’#ffffff’]
Compare -
WiFi and Bluetooth® v4.0 Dual Mode USB Module – LM811
£100.00Read moreWiFi and Bluetooth® USB Module v4.0 Dual Mode Class 1 – LM811 is a combination of WiFi 802.11n and Bluetooth® v4.0 standards wireless communication via a single USB interface at up to 150Mbps.
[av_button label=’Datasheet’ link=’manually,https://www.lm-technologies.comlm_downloads/LM811_DATASHEET.pdf’ link_target=’_blank’ size=’small’ position=’left’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’dark’ custom_bg=’#444444′ custom_font=’#ffffff’]
[av_button label=’Product Change Notice’ link=’manually,https://www.lm-technologies.comlm_downloads/LM811_PART_NUMBER_CHANGE_NOTICE.pdf’ link_target=’_blank’ size=’small’ position=’left’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’red’ custom_bg=’#444444′ custom_font=’#ffffff’ admin_preview_bg=”]
[av_button label=’See EOL Notice’ link=’https://www.lm-technologies.comeol-end-life-product-notice/’ link_target=” size=’small’ position=’left’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’custom’ custom_bg=’#94051f’ custom_font=’#ffffff’]
[av_button label=’Stock Is Available’ link=’https://www.lm-technologies.comcontact/#toggle-id-2′ link_target=” size=’small’ position=’left’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’custom’ custom_bg=’#008000′ custom_font=’#ffffff’]
[av_button label=’Where to Buy’ link=’page,471′ link_target=” size=’small’ position=’right’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’dark’ custom_bg=’#444444′ custom_font=’#ffffff’]
Compare -
WiFi USB Adapter 433Mbps – LM808
£100.00Read moreWiFi USB Adapter 433Mbps – LM808 supports All IEEE Standards IEEE 802.11 ac, a, b, g, n, d, e, h, i & Backward compatible with 802.11 a, b, g devices while operating over 802.11n
[av_button label=’Datasheet’ link=’manually,https://www.lm-technologies.comlm_downloads/LM808_DATASHEET.pdf’ link_target=’_blank’ size=’small’ position=’left’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’dark’ custom_bg=’#444444′ custom_font=’#ffffff’]
[av_button label=’Where to Buy’ link=’page,471′ link_target=” size=’small’ position=’right’ icon_select=’yes-right-icon’ icon_hover=’aviaTBicon_hover’ icon=’ue832′ font=’entypo-fontello’ color=’dark’ custom_bg=’#444444′ custom_font=’#ffffff’]
Compare
