The VHM-314 is widely available from online electronics retailers and marketplaces globally. Some reliable sources include:
A key detail for anyone seeking a datasheet is that the VHM-314 exists in several hardware versions. Forum discussions have identified at least , each potentially using a different core Bluetooth chipset, such as the AC1847AP1P803 , AS19AP , AS20BP , or AS22BP . This variation is the primary reason an all-encompassing datasheet is hard to find; documentation is often specific to the internal chip, not the module's generic product name.
VHM-314 Bluetooth Audio Receiver Module: Complete Datasheet and Application Guide vhm 314 datasheet free
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Use an isolated DC-DC converter (like the B0505S-1W) between the main power supply and the VHM-314. The VHM-314 is widely available from online electronics
The module is powered on and actively searching for a Bluetooth master device (pairing mode).
: Known for using subtle tones rather than loud voice prompts for connection status. Wiring Overview This variation is the primary reason an all-encompassing
The module's compact size and capabilities make it a popular choice for a wide range of projects:
is a popular, low-cost Bluetooth 5.0 audio receiver module used for DIY audio projects, such as upgrading speakers or car stereos. While a single official "datasheet" from a primary manufacturer is rare because it is a generic open-source design, technical specifications and manuals are widely available. Raspberry Pi Official Magazine Core Specifications Operating Voltage:
The fundamental electronic, RF, and acoustic performance parameters of the VHM-314 module are detailed below. Specification Value Notes / Conditions AS19AP (AS19AP28150) Main Bluetooth & DAC decoder SoC Bluetooth Version 5.0 (Backward compatible to 4.0) Supports A2DP, AVCTP, AVDTP, AVRCP, HFP Operating Voltage DC 3.7V to 5.0V Strict upper limit of 5.5V to prevent IC damage Signal-to-Noise Ratio (SNR) High-fidelity, low noise floor THD + N Minimal harmonic distortion Dynamic Range (DNR) Preserves soft and loud transients Crosstalk Excellent left/right channel isolation Frequency Response Covers full human audible frequency spectrum Supported Decoding Formats MP3, WAV, FLAC, APE Lossless and compressed audio support Transmission Range Line of Sight (LOS) in unobstructed open space Physical Dimensions Form factor varies slightly by hardware iteration Pinout Configuration & Hardware Interface