ALAN BT01 Bluetooth Module Owner’s Manual

ALAN BT01 Bluetooth Module

Introduction

Alan Safety introduces the pioneer of the Bluetooth 5.3 modules ALANBT01 which is a high performance, cost effective, low power and compact solution. The Bluetooth module provides a complete 2.4GHz Bluetooth system based on the QCC3084 WLCSP chipset which is a single chip radio and baseband IC for Bluetooth 2.4GHz systems. This module is fully qualified single-chip dual mode Bluetooth@v5.3 system.

Key Features

• MD-BLT-QR3084I(QCC3084) Features
  • Qualified to Bluetooth v5.3 specification
  • 240 MHz Qualcomm® Kalimba™ audio DSP
  • 32/80 MHz Developer Processor for applications
  • Firmware Processor for system
  • Flexible QSPI flash programmable platform
  • High-performance 24-bit stereo audio interface
  • Digital and analog microphone interfaces
  • Flexible PIO controller and LED pins with PWM support
  • Serial interfaces: UART, Bit Serializer (I²C/SPI), USB 2.0
  • Advanced audio algorithms
  • Active Noise Cancellation:Hybrid, Feedforward, and Feedback modes, using Digital or Analog Mics, enabled using license keys available from Qualcomm®
  • Qualcomm® aptX™ and aptX HD Audio
  • aptX Adaptive, enabled using license key
  • 1 or 2 mic Qualcomm® cVc™ headset speech processing
  • Qualcomm® cVc™ Noise Cancellation Technology,enabled using license key
  • Integrated PMU: Dual SMPS for system/digital circuits, Integrated Li-ion battery charger
  • 134-ball 6.7 mm x 7.4 mm x 1.0 mm, 0.5 mm pitch VFBGA
• Application subsystem
  • Dual-core application subsystem 32/80MHz operation
  • 32-bit Firmware Processor (reserved for system use) executes:
  • Bluetooth upper stack
  • Profiles
  • House-keeping code
  • 32-bit Developer Processor executes:
  • Developer applications
  • Both cores execute code from external flash memory using QSPI clocked at 32 MHz or 80 MHz
  • On-chip caches per core enable optimized performance and power consumption
• Bluetooth subsystem
  • Qualified to Bluetooth v5.3 specification including 2 Mbps Bluetooth Low Energy and Bluetooth Low Energy Isochronous Channels
  • Qualcomm® Bluetooth High Speed Link
  • Single ended antenna connection with on-chip balun and Tx/Rx switch
  • Bluetooth, Bluetooth Low Energy, and mixed topologies supported
  • Class 1 support

Applications

Wired/wireless stereo headsets/headphones

Block Diagram

General specifications

Module Package Information

Pinout Diagram and package dimensions

Module Pin descriptions

Electrical Characteristics

Absolute Maximum Ratings

Recommended Operating Conditions

PICTURE

Recommended reflow temperature profile

The module Must go through 125℃ baking for at least 9 hours before SMT AND IR reflow process!

Federal Communications Commission Statement

(FCC)

You are cautioned that changes or modifications not expressly approved by the part responsible for compliance could void the user’s authority to operate the equipment. 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.

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 of the device.

FCC RF Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions for satisfying RF exposure compliance. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

15.21
You are cautioned that changes or modifications not expressly approved by the part responsible for compliance could void the user’s authority to operate the equipment.

15.105(b)
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.

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 of the device.

FCC RF Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions for satisfying RF exposure compliance. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Note: The end product shall has the words “Contains Transmitter Module FCC ID: 2BK98ALANBT01”

OEM statement

• The Original Equipment Manufacturer (OEM) must ensure that the OEM modular transmitter must be labeled with its own FCC ID number. This includes a clearly visible label on the outside of the final product enclosure that displays the contents shown below. If the FCC ID is not visible when the equipment is installed inside another device, then the outside of the device into which the equipment is installed must also display a label referring to the enclosed equipment.
• The end product with this module may subject to perform FCC part 15 unintentional emission test requirement and be properly authorized.
• This device is intended for OEM integrator only Chip antennas: 3.0 dBi

Troubleshooting

This section provides general guidance for common issues. For detailed technical support, please contact Alan Safety Company.

Module Not Powering On

• Check Power Supply: Verify that the VBAT pin is receiving a stable voltage within the 2.8V to 4.3V range.
• Ground Connections: Ensure all necessary GND pins are properly connected to the system ground.

Bluetooth Connectivity Issues

• Antenna Connection: Ensure the BT_ANT pin (Pin 50) is correctly connected to an appropriate Bluetooth antenna.
• RF Interference: Check for potential sources of 2.4GHz interference in the operating environment.
• Module Placement: Ensure the module is not excessively shielded or placed in a way that obstructs the antenna’s line of sight.

Performance Degradation (e.g., low range, poor audio quality)

• Power Supply Stability: Unstable power can affect RF performance. Verify the cleanliness and stability of the power supply.
• Operating Temperature: Ensure the module is operating within its specified temperature range. Extreme temperatures can impact performance.
• PCB Layout: Review the PCB layout for proper impedance matching on RF lines and minimal noise on power and signal lines.

Module Damage During Assembly

• Baking Requirement: Ensure the module was baked at 125°C for at least 9 hours before SMT and IR reflow. Failure to do so can lead to moisture-related damage during reflow.
• Reflow Profile: Adhere strictly to the recommended reflow temperature profile to prevent thermal stress.

Frequently Asked Questions

• Q1: What Bluetooth version does the ALANBT01 support?
  A1: The ALANBT01 supports Bluetooth 5.3.
• Q2: What is the recommended operating voltage for the module?
  A2: The recommended operating voltage (VBAT) is between 2.8V and 4.3V.
• Q3: Is the ALANBT01 suitable for outdoor applications?
  A3: With an operating temperature range of -40°C to +85°C, the module is robust enough for a wide range of industrial and outdoor applications, provided other environmental factors are managed.
• Q4: What is the purpose of the baking process before SMT?
  A4: The baking process at 125°C for at least 9 hours is crucial to remove any moisture absorbed by the module. This prevents internal delamination or ‘popcorning’ during the high temperatures of the reflow soldering process, which could permanently damage the module.
• Q5: Can I modify the firmware on the ALANBT01?
  A5: The 32-bit Firmware Processor is reserved for system use. For specific customization or advanced features, please contact Alan Safety Company for developer resources or support.
• Q6: What are the main applications for this module?
  A6: The ALANBT01 is primarily designed for wired/wireless stereo headsets/headphones, but its versatile features make it suitable for other Bluetooth audio and data applications.
• Q7: What should I do if my device using the ALANBT01 fails FCC compliance?
  A7: You are cautioned that changes or modifications not expressly approved by the part responsible for compliance could void the user’s authority to operate the equipment. Ensure your product design and integration of the ALANBT01 comply with all relevant FCC regulations. If issues arise, review your design and consult with a compliance expert.