Product Description

ManualsBrandsGuangzhou Diankong Electronics ManualsElectronicsBluetooth Module

Bluetooth module manual

Model: DK-BT-MUSIC-21A

1. product description:

The DK-BT-MUSIC-21A Bluetooth module is an intelligent wireless audio data

transmission product independently developed by the company. It is a low-cost and

high-efficiency stereo wireless transmission solution. The module uses the JL AC6921A chip to

provide the module with high-quality sound quality and Compatibility, the overall performance is

more optimized. The DK-BT-MUSIC-21A Bluetooth module adopts a driver-free mode. Customers

only need to connect the module to the application product to quickly realize the wireless

transmission of music and enjoy the fun of wireless music.

The model approval code of the module will be reflected on the module label.

2. Module function description

DK-BT-MUSIC-21A module is a highly integrated, low-cost, low-power Bluetooth stereo with call

function + U disk + TF card + FM + Line in full-featured single-chip module, in line with V5.0 + BR +

EDR specification. (At the same time, LCD dot matrix screen is reserved, mic recording can also be

made, infrared remote control is supported, and file transmission is supported, but these need to

be supported by the enhanced version of the software).

1. Can play MP3/WMAWAV/SBC

2. Bluetooth stereo transmission, Bluetooth call

3.FM radio

4. TF/SD card control, support USB (slave) function, which can realize card reader function

5. Stereo Line-in input

6.IR remote control

7. Support 3X3 matrix buttons

8. Two controllable LEDs, support external power amplifier mute function

9. Internal integrated power management

10. Support U disk control

11. The internal integrated 2x1W power amplifier supports direct output of dual-channel power

amplifiers (2x6 ohm speakers are recommended, and the power is about 2x0.75W)

12. With high-speed UART debugging and upgrade interface

3. Module product application

This module is mainly used for short-distance music transmission. It can be easily connected to

bluetooth devices of digital products such as laptops, mobile phones, PDAs, etc., to realize

wireless transmission of music. Due to the integrated FM and MMC card playback functions, this

product has There is a very high cost performance.

1. Bluetooth speaker single chip solution, integrated Linein, FM, IR, TF/SD card, U disk and power

amplifier

2. Bluetooth stereo headset

3. Bluetooth wireless audio transmission

Summary of content (4 pages)

PAGE 1
Bluetooth module manual Model: DK-BT-MUSIC-21A 1. product description: The DK-BT-MUSIC-21A Bluetooth module is an intelligent wireless audio data transmission product independently developed by the company. It is a low-cost and high-efficiency stereo wireless transmission solution. The module uses the JL AC6921A chip to provide the module with high-quality sound quality and Compatibility, the overall performance is more optimized. The DK-BT-MUSIC-21A Bluetooth module adopts a driver-free mode.
PAGE 2
4. Card reader, Bluetooth dialer, Bluetooth companion and other products 4. Module product specifications Bluetooth version: Bluetooth V5.0+BR+EDR Modulation method: GFSK, π /4-DQPSK Support: HFP/HSP, OPP., A2DP/AVRCP, PBAP profiles Sensitivity: (0.1% BER) -82dBm Transmit power: meet the requirements of class2 and class3 transmit power, and can provide a maximum transmit power of +7dbm Power supply voltage: 3.2V-4.
PAGE 3
Recommended reflow temperature FCC Statement 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. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
PAGE 4
-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 Bluetooth Module is designed to comply with the FCC statement. FCC ID is 2A2PIDKBTMUSIC21A. The host system using Bluetooth Module Module, should have label indicated it contain modular’s FCC ID: 2A2PIDKBTMUSIC21A .