CTE TECH CTE-BT2 Bluetooth Module Instruction Manual

Bluetooth Module
Model: CTE_BT2
Version: V1.0

Introduction

CTE Tech Corp. introduces the pioneer of the Bluetooth5.3 modules ORS-M81 which is a high performance, low power and compact solution. The Bluetooth module provides a complete2.4GHz Bluetooth system based on the QCC5181 WLCSP chipset which is a single chip radio and baseband IC for Bluetooth 2.4GH systems. This module is fully qualified single-chip dual mode Bluetooth@v5.4 system.

Key Features

Earbud and Headset Applications
■ Bluetooth® v5.4 stack and profiles
■ Qualcomm Bluetooth High Speed Link
■ Qualcomm True Wireless™ Mirroring
■ Feedforward, Feedback, and Hybrid Qualcomm ANC
■ Qualcomm aptX™ Adaptive audio, aptX Voice, and aptX Adaptive 96 kHz, and aptX Adaptive Lossless (R2.2), and Snapdragon Sound Gaming Codec
■ 1-Mic, 2-Mic, or 3-Mic Qualcomm® cVc™ Echo Cancelling and Noise Suppression (cVc). 3-Mic: Earbud Application only
■ 3-Mic cVc with Machine Learning-based noise suppression
■ Adaptive Transparency Wind Noise Reduction
■ Machine Learning Framework
■ Bluetooth Low Energy Audio Broadcast Receiver (BMR)
■ Low Latency Gaming Mode for A2DP
■ LE Audio Unicast Music Receiver with Gaming mode, Call Terminal, and Stereo Recording
■ LE Audio Gaming mode with Voice Back Channel
■ Multipoint (BR/EDR only) with Barge-In support and 3-way call holding
■ Microsoft Swift Pair
■ Google Better Together, including Fast Pair and Audio Switching
■ Tones and AAC Voice Prompts
■ Google Voice Assistant PTT
■ AMA Voice Assistant WuW and TTT
■ MFi support (iAP2)
■ Device Firmware Upgrade support and DFU over HID (ES quality)
■ iAP2 (including GAIA framework)
■ Wireless Debug Capability
■ Over the air DFU (background and foreground): Earbud Application only
■ Wireless device test service for manufacturing
■ Over the air update for ST Micro-based Earbud RDP case
■ In charger case pairing
■ Charging Case Power Line Communications using the fast comms scheme

Source Application
■ Bluetooth® v5.4 stack and profiles
■ Qualcomm Bluetooth High Speed Link
■ Bluetooth Low Energy Audio Unicast Voice with call control (CCP)
■ Bluetooth Low Energy Audio Unicast Music with media control (MCP)
■ LEA Broadcast source support (TMAP and PBP) (CS quality)
■ LE Audio Gaming mode with Voice Back Channel
■ 19 ms LEA Gaming latency
■ Volume control using VCP
■ DFU support
■ aptX Adaptive Lossless (R2.1/R2.2)

Audio subsystem
■ Dual 32-bit Kalimba audio digital signal processor (or processing) (DSP) cores with flexible clocking from 2 MHz to 240 MHz to enable optimization of performance vs. power consumption
■ DSPs execute code from ROM and from program RAM
■ OEM and third party developed features can execute from program RAM
■ 384 KB program RAM
■ 1408 KB data RAM Application subsystem
■ Dual-core application subsystem 32/80 MHz 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 v5.4 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/Dongle
■ Qualcomm True Wireless™ stereo earbuds

General specifications

Module Package Information

5.1 Dimension Postage stamp hole

5.2 Module Pin descriptions

5.3 Device Terminal Functions

Electrical Characteristics

6.1 Absolute Maximum Ratings

6.2 Recommended Operating Conditions

Label

Laser engraving printing label

Country	Mark
U.S	FCC ID: 2AS3E-CTEBT2
Canada	IC: 24983-CTEBT2
Europe
Taiwan
Japan
Korea
U. K

Warning

FCC Statement:
FEDERAL COMMUNICATIONS COMMISSION INTERFERENCE 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. 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.

CAUTION:
Any changes or modifications not expressly approved by the grantee of this device could void the user’s authority to operate the equipment.
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.

RF Exposure warning
This equipment must be installed and operated in accordance with provided instructions and the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. End-users and installers must be provide with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance.

Information for OEMs and host integrators
The OEM or integrator is obligated to adhere to these requirements and restrictions as a condition for using the module’s certification.
The OEM or integrator is responsible to perform the required additional host regulatory testing and/or obtaining the required host approvals for compliance.

2.2 List of applicable FCC rules
This module has been tested for compliance to FCC Part 15 Subpart C (15.247).
2.3 Summarize the specific operational use conditions
The module is tested for standalone mobile RF exposure use condition. Any other usage conditions such as colocation with other transmitter(s) will need a separate reassessment through a class II permissive change application or new certification.

2.4 Limited module procedures
Not applicable, this device is a single modular approval and meets FCC 47 CFR 15.212 requirement.
2.5 Trace antenna designs
Not applicable. This module has its own antenna, and does not need a host’s printed board micro strip trace antenna, etc.
2.6 RF exposure considerations
This equipment complies with FCC mobile radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator & your body.
A separate SAR/Power Density evaluation is required to confirm compliance with relevant FCC portable RF exposure rules.

2.7 Antennas
This module has been approved to operate with the antenna types listed below, with the maximum permissible gain indicated.

IMPORTANT: The final host product must have an integral antenna which is not removable by the end-user.

2.8 Label and compliance information
Label of the end product:
The final end product must be labeled in a visible area with the following: “Contains FCC ID: 2AS3E-CTEBT2”. The grantee’s FCC ID can be used only when all FCC compliance requirements are met

2.9 Information on test modes and additional testing requirements
This transmitter is tested in a standalone mobile RF exposure condition and any co-located or simultaneous transmission with other transmitter(s) class II permissive change re-evaluation or new certification.

2.10 Additional testing, Part 15 Subpart B disclaimer
This transmitter module is tested as a subsystem and its certification does not cover the FCC Part 15 Subpart B (unintentional radiator) rule requirement applicable to the final host. The final host will still need to be reassessed for compliance to this portion of rule requirements if applicable. As long as all conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed.

IMPORTANT NOTE: In the event that these conditions cannot be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for reevaluating the end product (including the transmitter) and obtaining a separate FCC authorization.

Manual Information To the End User
The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the user’s manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual.

OEM/Host manufacturer responsibilities
OEM/Host manufacturers are ultimately responsible for the compliance of the Host and Module. The final product must be reassessed against all the essential requirements of the FCC rule such as FCC Part 15 Subpart B before it can be placed on the US market. This includes reassessing the transmitter module for compliance with the Radio and EMF essential requirements of the FCC rules. This module must not be incorporated into any other device or system without retesting for compliance as multi-radio and combined equipment.

IC Statement:

CAN ICES-003(B) / NMB-003(B)
Innovation, Science and Economic Development Canada(ISED) Compliance Statement

This device complies with ISED’s licence-exempt RSSs. 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.

Radiation Exposure Statement:
This equipment complies with ISED radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with greater than 20cm between the radiator & your body.

This device is intended only for OEM integrators under the following conditions:

1. The antenna must be installed and operated with greater than 20cm between the antenna and users, and
2. The transmitter module may not be co-located with any other transmitter or antenna. As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed.

IMPORTANT NOTE: In the event that these conditions cannot be met (for example certain laptop configurations or colocation with another transmitter), then the Canada authorization is no longer considered valid and the IC ID cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for reevaluating the end product (including the transmitter) and obtaining a separate Canada authorization.

End Product Labeling
This transmitter module is authorized only for use in device where the antenna may be installed and operated with greater than 20cm between the antenna and users. The final end product must be labeled in a visible area with the following: “Contains IC: IC: 24983-CTEBT2”.

Manual Information To the End User
The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the user’s manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual.

This radio transmitter [IC: 24983-CTEBT2] has been approved by Innovation, Science and Economic Development Canada to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device.
This radio transmitter [IC: 24983-CTEBT2] has been approved by Innovation, Science and Economic Development Canada to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device.

IMPORTANT: The final host product must have an integral antenna which is not removable by the end-user.
CE RED / UK RER Compliance Statement

EU Declaration of Conformity
Hereby, CTE Tech Corp. declares that the radio equipment type CTE_BT2 is in compliance with Directive 2014/53/EU.
The full text of the EU declaration of conformity is available at the following internet address: https://www.ctetechcorp.com/product/meter

RF Exposure warning
This device meets the EU requirements (2014/53/EU) on the limitation of exposure of the general public to electromagnetic fields by way of health protection.
The device complies with RF specifications when the device used at 20 cm from your body.

All operational modes:

No. 1-7, Gongjian Rd., Cidu District, Keelung City 20647, Taiwan R.O.C.
Tel:+886-2-2452 2431
Fax:+886-2-2451 9659
http://www.ctetech.com.tw