Cdtech CDB-BM2853C-00 Bluetooth Module Datasheet

Basic Information

Environmental Guarantee

1. All raw materials of supplied parts should be met TPV latest version standard (RDEMS-01) and the requirement of regional or country laws and ordinances.
2. All raw materials of supplied parts comply below requirements or not (mark "✔" in the [ ] if item complies; mark "X" in the [ ] if not).
   • Free of halogen (Not contain any halogen in products or parts) [ ]
   • Low halogen / [ ] (According TPV standard RDEMS-01)
   • Not contained any red phosphorus [ ]
   • VOCs / [ ] (According TPV standard RDEMS-01)

Important Notice

1. Any specification change for component, especially following items: Raw Material, Process, Tooling, Factory, Label, halftone, and any engineering changed of production, should be approved by TPV.
2. Any engineering change for component should be in version record, supplier should provide management information for old version parts to TPV if required.
3. Safety parts should be ensured that all safety certificate is complete and in the period of validity. Any change of safety certificate should be noticed to TPV timely and phased-in after approved by TPV.

Supplier Information

Prepared: Liu Zhonglin

Check: Wu Zengxi

Approved: Li Wei

Tel: (86 755) 81449957

Fax: (86 755) 81449967

Email: liwei-lever@cdtech.cn

Address: Building B4, No. 1 Industrial Park, Linpo Keng Ho 3, Nanpu Road, Shajing Street, Bao'an District, Shenzhen

Software Information and Ordering Information

Overview

The CDB-BM2853C-00 is a highly integrated single-chip Bluetooth audio device. It also can act as traditional card speakers and card-reader for data transmission. The CDB-BM2853C-00 integrates the high-performance transceiver, rich features baseband processor and Bluetooth audio profile. It meets Bluetooth V5.0 and compliant with V4.2/2.1+EDR, and supports dual mode (BR/EDR + Low Energy Controllers). The links in BR/EDR and LE can be active simultaneously. CDB-BM2853C-00 integrates high quality and low latency SBC decoder and CVSD codec. It also supports PLC technique and AEC in voice call providing a high audio quality. The CDB-BM2853C-00 integrates a complete set of power management circuits, flexible memory configuration, Matrix LED controller for UI display and rich interfaces, such as SD/SDIO/SPI/USB2.0 FS/UART/TWI/PWM/IR /I2S TX&RX and so on. The architecture is fully programmable with any application. It also has the minimum package and the most compact BOM.

Features

• Bluetooth V5.0 specification compliant
• 32bit RISC processor Core, up to 240MHz.
• Internal 2MByte Nor flash
• Supports 24MHz OSC with on-chip PLL
• Support USB/SDCard/Uart firmware upgrade
• Support for echo cancellation and noise reduction
• Supports for packet loss concealment
• Compatible with AVRCP Profile V1.6, A2DP Profile V1.3, HFP Profile V1.7
• Supports GFSK, DQPSK and 8DPSK modulation
• Support for SBC & AAC Bluetooth audio transmission format
• Supports SCO/eSCO link
• Built-in stereo 24-bit input sigma-delta DACs
• Supports Secure Simple Pairing
• Supports Low Power Mode (Sniff / Sniff Sub-rating / Hold / Park)
• Bluetooth Dual Mode support: Simultaneous LE and BR / EDR
• Support differential audio output for speaker PA
• Linear regulators output VCC, SVCC, RTCVDD

Application

• Portable stereo speakers and speakerphones
• Bluetooth car audio unit
• Stereo headsets and headphone
• Other Bluetooth audio applications

General Specification

Pin Description

Diagram: Top View: A visual representation showing the physical layout of the module from the top, indicating component placement and edge connectors.

Diagram: Bottom View: A visual representation showing the underside of the module, typically featuring solder pads and manufacturing markings.

Diagram: Pin View: A schematic diagram illustrating the integrated circuit chip, detailing each pin's number, name, and function.

Bill of Materials (BOM)

Electrical Characteristics

Absolute Maximum Ratings

Recommended Power Supply

Regulators Maximum Output Current

Audio ADC Parameters

Core Supply Voltage = 1.2V @ 25°C

Pre-Amplifier

Analogue to Digital Converter

Stereo DAC Parameters

Digital to Analogue Converter

Power Amplifier

RF Characteristics

Packaging Instructions

The module is packaged on a blue plastic disc, with 1500 pieces per roll. Packaging includes vacuum packing within an anti-static bag. Inner boxes (K3K) measure 33.5cm x 34.7cm x 7cm, containing 1500 PCS. Cartons (K=A) measure 36.4cm x 35.7cm x 37.5cm, holding a case of 7500 PCS.

Reflow Profile

The reflow process should be performed a maximum of 2 times. The profile includes a preheating zone (60-90°C, 1-3.0°C/sec), a constant temperature zone (110-190°C for 60-120 seconds), a zone above 217°C (30-90 seconds), and a peak temperature zone (230-250°C for 30-40 seconds). The maximum temperature should not exceed 250°C.

FCC Statement

Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

NOTE: 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

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

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.

1. The module is limited to OEM installation ONLY.
2. The OEM integrator is responsible for ensuring that the end-user has no manual instructions to remove or install module.
3. That module is limited to installation in mobile or fixed applications, according to Part 2.1091(b)
4. FCC RF Radiation Exposure Statement Caution: To maintain compliance with the FCC's RF exposure guidelines, place the product at least 20cm from nearby persons.

IC Warning User Manual Statement

English Version

This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device.

Radiation Exposure Statement: The product comply with the Canada portable RF exposure limit set forth for an uncontrolled environment and are safe for intended operation as described in this manual.

This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada. CAN ICES-003 (B)/NMB-003(B)

This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.

For Module

This device complies with Part 15, Part 15C of the FCC Rules. The FCC ID for this device is 2AR2S-CDBBM2853C

End Product Labeling

If the FCC ID is not visible with the module is installed inside another device, then it must be still responsible for the FCC compliance requirement of the end product which referring to the enclosed module and it also must display a label, such as the following: Contains Transmitter module FCC ID: 2AR2S-CDBBM2853C or contains FCC ID: 2AR2S-CDBBM2853C

If the IC ID is not visible with the module is installed inside another device, then it must be still responsible for the IC compliance requirement of the end product which referring to the enclosed module and it also must display a label, such as the following: Contains Transmitter module IC ID: 24589-CDBBM2853C or contains IC ID: 24589-CDBBM2853C

RF Exposure Considerations

The host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed.

It is essential for module grantees to clearly and explicitly state the RF exposure conditions that permit a host product manufacturer to use the module. Two types of instructions are required for RF exposure information: (1) to the host product manufacturer, to define the application conditions (mobile, portable – xx cm from a person's body); and (2) additional text needed for the host product manufacturer to provide to end users in their end product manuals. If RF exposure statements and use conditions are not provided, then the host product manufacturer is required to take responsibility of the module through a change in FCC ID (new application).