Bluetooth Smart Ready Module

Case Studies

Lead Times Update 22 Sep 2022

For new orders, due to extended lead times from our chip vendors/suppliers, we are experiencing delays for key components used in LM products which are impacting the normal production cycle.…

Bluetooth® 5 Dual Mode Audio Module – LM747

£100.00

LM747 is LM Technologies Bluetooth® (5 compliant), v4.1, v4.0, v2.1 Dual Mode Class 2 Audio module with stereo flash. This module is ideal for audio applications in vehicle infotainment systems, handsfree kits, headsets, Bluetooth speakers and Bluetooth® Stereo Headsets and much more.

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Available: Out of stock

  • Tech Spec

    Additional Information

    Wireless Standard
    • BT 5
    Backward Compatibility
    • Bluetooth 4.0
    • Bluetooth 3.0
    • Bluetooth 2.1
    • Bluetooth 2.0
    Frequency

    2.4 GHz

    Module Type
    • Programmable (Configurable with AT Commands)
    Profiles

    A2DP, AVRCP, HSP

    Programming Interface

    SPI

    Interfaces
    • UART
    • USB
    Antenna

    RF Antenna

    Dimensions
    • 12.4mm x 12.4mm x Height (Typical 2.05mm – Max 2.35mm)
    Weight
    • 0.48g +/- 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

    LM559

    Bluetooth Technology

    Bluetooth Classic

    Compliance
    • Reach
    • RoHS
    • WEEE
    Certifications
    • Bluetooth SIG - UK
  • Description

    The LM747 Bluetooth® 5 compliant programmable audio module is a compact 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 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 LM747, simplifying the manufacturing and testing process. Its 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® and Faststream CODEC
    • Integrated 16-bit Stereo Audio CODEC
    • SBC, MP3 and AAC decoder
    • CSR’s cVc technology for noise-cancellation
    • Microphone input and Speaker output interfaces
    • SMT Side and Bottom Pads for easy production

Case Studies

Lead Times Update 22 Sep 2022

For new orders, due to extended lead times from our chip vendors/suppliers, we are experiencing delays for key components used in LM products which are impacting the normal production cycle.…

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Certifications

Bluetooth SIG Certified [ Verify our SIG certification of LM747 ]

OTHER DECLARATIONS

ECCN / CCATS

The LM747 Bluetooth® 5 compliant programmable audio module is a compact 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 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 LM747, simplifying the manufacturing and testing process. Its 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
  • BT 5
Backward Compatibility
  • Bluetooth 4.0
  • Bluetooth 3.0
  • Bluetooth 2.1
  • Bluetooth 2.0
Frequency

2.4 GHz

Module Type
  • Programmable (Configurable with AT Commands)
Profiles

A2DP, AVRCP, HSP

Programming Interface

SPI

Interfaces
  • UART
  • USB
Antenna

RF Antenna

Dimensions
  • 12.4mm x 12.4mm x Height (Typical 2.05mm – Max 2.35mm)
Weight
  • 0.48g +/- 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

LM559

Bluetooth Technology

Bluetooth Classic

Compliance
  • Reach
  • RoHS
  • WEEE
Certifications
  • Bluetooth SIG - UK

USER MANUALS


LEGACY MANUALS


* For any other product documentation please Contact Us

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