An audio amplifier module is an electronic device used to amplify the power of audio signals and is widely used in various audio equipment.
Ebyte audio amplifier modules mainly include two categories: Bluetooth audio modules and RF power amplifier modules. The following are recommendations based on application scenarios:
Bluetooth Audio Transmission Type
EWM104-BT3040 Series
Core Chip: Qualcomm QCC3040, supports Bluetooth 5.2 protocol
Audio Specifications: 24bit/96kHz high-resolution audio, supports aptX and aptX HD encoding
Output Mode: Differential headphone output, supports Class AB/Class D power amplifier modes, output power 100mW
Application Scenarios: TWS Bluetooth earphones, smart speakers, gaming headsets, car Bluetooth speakers
Price Reference: Historical reference price $4.10 (approximately 29 RMB)
EWM104-BT41SX/SP
Bluetooth Version: Bluetooth 5.4, supports BLE and classic Bluetooth dual-mode switching
Transmit Power: Maximum 8dBm, Receive Sensitivity 96dBm
Interface Features: Supports AT command configuration, IPEX/PCB antenna optional
Application Scenarios: Wireless upgrade of serial devices, IoT data transmission
Features: Simple operation, supports AT command configuration parameters
E104-BT30
Bluetooth Specifications: Bluetooth 4.2+EDR, transmit power 9dBm
Chip Solution: CSRA64215, supports MP3 playback
Compact Size: 25×16mm, weight only 0.8g
Application Scenarios: Portable Bluetooth speakers, headphones, small audio devices
Features: Sold out, alternative products may be available.
RF Amplifier Type
E200-470A17STB
RF Parameters: 470MHz, maximum transmit power 17dBm
Function: Audio transmission module test board, USB interface
Operating Conditions: 5V power supply, operating temperature 40℃ to +85℃
Application Scenarios: Audio module performance testing, development debugging
Features: Designed specifically for E200470A17S, providing a simple and effective performance analysis solution
E21-900G30S
Frequency range: 850931MHz, transmit power 30dBm (1W)
Compact size: 27.5×18mm, weight 3.4g
Applications: Long-range wireless transmission, industrial IoT
Features: Pure hardware RF medium-power amplifier, built-in LNA low-noise amplifier
Selection Recommendations
Consumer electronics development: Choose the EWM104-BT3040 series, supporting high-definition audio and active noise cancellation.
Simple Bluetooth connectivity: Consider the EWM104-BT41SX/SP, easy AT command configuration.
Portable devices: Although the E104BT30 is sold out, alternative products are worth considering.
Testing and development: The E200-470A17STB is suitable for module performance analysis.
Long-range transmission: The E21-900G30S is suitable for industrial-grade long-range applications.
Ebyte products are CE and FCC certified, and provide comprehensive technical support and development documentation. It is recommended to choose the appropriate model based on specific application requirements and budget.