Zenchant ZEN-BDM11A Dual Mode Bluetooth Module
Overview
ZEN-BDM11A Bluetooth module is based on AC6963A chip which complies with Bluetooth 5.1 specification. This module supports Bluetooth BLE/SPP data transmission, voice calls, Bluetooth music play, support USB Disk/SPIFLASH audio decoding, ng, and some other functions. It is convenient to use pins to connect the module, which can greatly reduce the difficulty of peripheral circuit design and reduce the cost for customers. This module is an excellent solution for speaksystemstem, home ,some, and other applications.
Features
- Comply with Bluetooth 5.1 specification (BR/EDR/LE)
- Support classic Bluetooth protocol (A2DP/AVRCP/AVDPT/AVCTP/HFP/SPP/SDP/L2CAP/HID …)
- Support Bluetooth LE data transmission (LE 1M/2M PHY)
- 16 Bit stereo audio DAC output
- 16 Bit stereo audio o AD C，Built-in MIC amplifier
- AUX IN interface
- High-speed UART interface
- USB 2.0 Full speed OTG Controller Support USB Disk/USB Audio
- On-board 2.4G PCB antenna
- BLE supports multi-master and multi-slave applications
- Support external SPI Flash as music memory.
Application
- Bluetooth Speaker
- Smart-home devices
Block diagram
Product Selection
Note: The screen-printing model of the PCB board is ZEN-BDM11, and the suffix -A indicates the shielding cover mounted. The shield can print laser labels or paste paper labels according to customer requirements.
Module Size and Pin Configuration
| PIN
NO. |
NAME | I/O
Type |
Function | Other Function |
| 1 | GND | P | Ground | |
| 2 | ANT | P | Test RF ANT | |
| 3 | GND | P | Ground | |
| 4 | PB1 | I/O | GPIO
(pull up) |
Long Press Reset； SPI1DOA：SPI1 Data Out(A);
ADC5：ADC Input Channel 5; TMR2：Timer2 Clock Input; UART0RXB：Uart0 Data In(B); |
| 5 | DP | I/O | USB Positive Data | SPI2DOB：SPI2 Data Out(B);
IIC_SDA_A：IIC SDA(A); ADC14：ADC Input Channel 14; UART1RXD：Uart1 Data In(D); |
| 6 | DM | I/O | USB Negative Data | AMUX2R：Analog Channel2 Right; SPI2DOA：SPI2 Data Out(A);
ADC9：ADC Input Channel 9; UART2RXC：Uart2 Data In(C); |
| 7 | PB4 | I/O | GPIO | SPI0_DAT2A(2)：SPI0 Data2 Out_A(2);
ADC7：ADC Input Channel 7; CLKOUT1 UART2TXC：Uart2 Data Out(C); |
| UART2RXC：Uart2 Data In(C); | ||||||
| 8 | PB6 | I/O | GPIO | AMUX1L：Analog Channel1 Left; | ||
| SPI2CLKA：SPI2 Data Out(A); | ||||||
| IIC_SCL_C：IIC SCL(C); | ||||||
| ADC8：ADC Input Channel 8; | ||||||
| TMR3：Timer3 Clock Input; | ||||||
| UART1TXA：Uart1 Data Out(A); | ||||||
| 9 | PB7 | I/O | GPIO | AMUX1R：Analog Channel1Right; | ||
| SPI2DOA：SPI2 Data Out(A); | ||||||
| IIC_SDA_C：IIC DAT(C); | ||||||
| ADC9：ADC Input Channel 9; | ||||||
| PWM5：Timer5 PWM Output； | ||||||
| UART1RXA：Uart1 Data In(A); | ||||||
| 10 | GND | P | Ground | |||
| 11 | MIC_B | I/O | Microphone | Bias | PA2; | |
| IAS | Output | CAP3：Timer3 Capture; | ||||
| 12 | MIC | I/O | MIC Input Channel | PA1; | ||
| ADC1：ADC Input Channel 1; | ||||||
| PWM4：Timer4 PWM Output； | ||||||
| UART1RXC：Uart0 Data In(C); | ||||||
| 13 | AND | P | Ground | |||
| 14 | DACL | O | DAC Left Channel | |||
| 15 | DACL | I/O | DAC Right Channel | |||
| 16 | NC | |||||
| 17 | LDO_I | P | Battery Charger In | |||
| N | ||||||
| PB5 | I/O | GPIO | SPI2DIA：SPI2 Data Input(A)； | |||
| (High Voltage | PWM3：Timer3 PWM Output； | |||||
| Resistance) | CAP1：Timer1 Capture; | |||||
| UART0TXC：Uart0 Data Out(C)； | ||||||
| UART0RXC：Uart0 Data In(C); | ||||||
| 18 | VBAT | P | LDO Power | |||
| 19 | VDDIO | P | IO Power 3.3v | |||
| 20 | GND | P | Ground | |||
Typical application circuits
Module hardware specifications
PMU Characteristics
| Symbol | Parameter | Min | Typ | Max | Unit | Test Conditions |
| VBAT | Voltage Input | 2.2 | 3.7 | 5.5 | V | |
| LOGIN | Charge Voltage | 4.5 | 5.5 | V | ||
| VDDIO | Voltage output | — | 3.3 | — | V | VBAT = 4.2V,100mA |
| IVDDIO | Loading current | — | — | 150 | mA | VBAT =5V |
IO Input/Out Electrical Logical Characteristics
| IO Input Characteristics | ||||||
| Symbol | Parameter | Min | Typ | Max | Unit | Test Conditions |
| VIL | Low-Level
Input Voltage |
-0.3 | — | 0.3*
VDDIO |
V | VDDIO = 3.3V |
| VIA | High-Level
Input Voltage |
0.7*
VDDIO |
3.3 | — | V | VDDIO = 3.3V |
| IO output characteristics | ||||||
| VOL | Low-Level
Output Voltage |
— | — | 0.33 | V | VDDIO = 3.3V |
| VOH | High-Level
Output Voltage |
2.7 | — | — | V | VDDIO=3.3V |
Internal Resistor Characteristics
| Port | General
Output |
High
Drive |
Internal
Pull-Up |
Internal
Pull-Dow |
Comment |
| Resistor | n Resistor | |||||
| PA1,PA2 | 1. PB1 default pull up | |||||
| PA6,PB1
PB4,PB6,P |
8mA | 24mA | 10K | 10K | 2. USBDM & USBDP
default pull down |
|
| B7 | 3. PB0, PB2, PB5 can | |||||
| PB5 | 8mA | — | 10K | 10K | pull-up resistance to 5V | |
| USBDP | 4mA | — | 1.5K | 15K | 4. internal pull-up/pull-down | |
| UDBDM | 4mA | — | 180K | 15K | resistance | accuracy ± | |
| 20% |
DAC Characteristics
| Parameter | Min | Typ | Max | Unit | Test Conditions |
| Frequency Response | 20 | — | 20K | Hz |
1KHz/0dB 10Kohm Loading With A-Weighted Filter |
| THD+N | — | -75 | — | dB | |
| S/N | — | 95 | — | dB | |
| Crosstalk | — | -90 | — | dB | |
| Output Swing | 1 | Vrms | |||
| Dynamic Range | 90 | dB | 1KHz/-60dB 10Kohm Loading
With A-Weighted Filter |
||
| DAC Output Power | 11 | mW | 32-ohm Loading |
ADC Characteristics
| Parameter | Min | Typ | Max | Unit | Test Conditions |
| Dynamic Range | 80 | dB | 1KHz/-60dB 10Kohm Loading
With A-Weighted Filter |
||
| S/N | 90 | 91 | dB | 1KHz/-60dB 10Kohm Loading With A-Weighted Filter | |
| THD+N | -70 | dB | |||
| Crosstalk | -90 | dB |
BT Characteristics
- Transmitter
Basic Data Rate
| Parameter | Min | Typ | Max | Unit | Test Conditions | |
| RF Transmit Power | 4 | 6 | dBm |
25℃, Power Supply Voltage=5V 2441MHz |
||
| RF Power Control Range | 20 | dB | ||||
| 20dB Bandwidth | 950 | KHz | ||||
|
Adjacent Channel Transmit Power |
+2MHz | -40 | dBm | |||
| -2MHz | -38 | dBm | ||||
| +3MHz | -44 | dBm | ||||
| -3MHz | -35 | dBm | ||||
Enhanced Data Rate
| Parameter | Min | Typ
。。 |
Max | Unit | Test Conditions | |
| Relative Power | -1 | dBm | 25℃, Power Supply Voltage=5V 2441MHz | |||
| π/4 DQPSK
Modulation |
DEVM RMS | 6 | % | |||
| DEVM 99% | 10 | % | ||||
| Accuracy | DEVM Peak | 15 | % | ||||
| Adjacent | +2MHz | -40 | dBm | ||||
| Channel | -2MHz | -38 | dBm | ||||
| Transmit | +3MHz | -44 | dBm | ||||
| Power | -3MHz | -35 | dBm |
Receive
Basic Data Rate
| Parameter | Min | Typ | Max | Unit | Test Conditions | |
| Sensitivity | -90 | dBm |
25℃, Power Supply Voltage=5V 2441MHz |
|||
| Co-channel Interference
Rejection |
-13 | dB | ||||
|
Adjacent Channel Transmit Power |
+1MHz | +5 | dBm | |||
| +1MHz | +2 | dBm | ||||
| +2MHz | +37 | dBm | ||||
| -2MHz | +36 | dBm | ||||
| +3MHz | +40 | dBm | ||||
| -3MHz | +35 | dBm | ||||
Enhanced Data Rate
| Parameter | Min | Typ | Max | Unit | Test Conditions | |
| Sensitivity | -90 | dBm |
25℃, Power Supply Voltage=5V 2441MHz |
|||
| Co-channel Interference
Rejection |
-13 | dB | ||||
|
Adjacent Channel Transmit Power |
+1MHz | +5 | dBm | |||
| +1MHz | +2 | dBm | ||||
| +2MHz | +37 | dBm | ||||
| -2MHz | +36 | dBm | ||||
| +3MHz | +40 | dBm | ||||
| -3MHz | +35 | dBm | ||||
Release notes
| Data | Version | Instructions |
| 2022.03.03 | V1.0 | New English document |
FCC statements
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.
NOTE:
The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications or changes to this equipment. Such modifications or changes 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 the receiver.
- Connect the equipment to 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.
Q: What is the purpose of the shielding cover on the ZEN-BDM11A?
A: The shielding cover provides protection and can be customized with laser labels or paper labels as per customer requirements.
Documents / Resources
 |
Zenchant ZEN-BDM11A Dual Mode Bluetooth Module [pdf] Owner's Manual ZEN-BDM11A Dual Mode Bluetooth Module, ZEN-BDM11A, Dual Mode Bluetooth Module, Mode Bluetooth Module, Bluetooth Module, Module |