Can be powered via a standard Micro-USB cable or a direct DC power supply.
+---------------------+ +-----------------------+ | | | Car Stereo (Head | | VHM-314 Module | | Unit) | | | | | | (Power Source) | | +5V DC Power Source | | +5V ------------+------>| (e.g., USB port, | | GND ------------+------>| internal regulator)| | | | | | (Audio Output) | | AUX Input | | Audio L ----------+------>| Audio L | | Audio R ----------+------>| Audio R | | Audio GND --------+------>| Audio GND | +---------------------+ +-----------------------+
Power the VHM-314 from an isolated power source (like a separate battery or separate USB brick), or add a B0505S isolated DC-DC converter or an audio ground loop isolator between the VHM-314 output and the amplifier input. Issue 2: Audio Stuttering or Short Range
This overview of the module's key technical specifications is based on information from the sources above and functions as its own "quick reference" datasheet. vhm 314 datasheet free
Most VHM 314 variants operate between . The datasheet will specify if it is a 5V-only device or if it supports 12V industrial rails. Look for the "Supply Voltage Rejection Ratio" – how well the device ignores noise on the power line.
VHM-314 Bluetooth Audio Receiver Module Go to product viewer dialog for this item.
Audio Ground (Keep separate from power ground where possible to avoid ground loops). Status Indicator (LED) Can be powered via a standard Micro-USB cable
In the fast-paced world of electronics, precision, efficiency, and reliability are non-negotiable. Whether you are a design engineer, a hobbyist working on a DIY project, or a procurement specialist sourcing components, the one document that stands between you and a successful application is the . Today, we focus on a specific component that has garnered attention in industrial and consumer electronics: the VHM 314 . More importantly, we will guide you on how to obtain a VHM 314 datasheet free of charge, and what vital information you can expect to find inside.
Complete Guide to the VHM-314 Bluetooth Audio Receiver Module: Datasheet, Pinout, and Wiring
Insert a from the module's jack into the "Line In" or "AUX" port of an external amplifier or active speaker system. Configuration B: Embedded DIY Integration (Battery Powered) Most VHM 314 variants operate between
The following table summarizes the key technical data found in the VHM-314 technical documentation: Specification VHM-314 V2.0 Bluetooth Version Bluetooth 5.0 (Compatible with 4.x) Operating Voltage 3.7V - 5V DC (Li-ion/Micro USB) SNR (Signal-to-Noise Ratio) THD+N (Distortion) -70 dB or ≤ 0.1% DNR (Dynamic Range) Audio Output 3.5mm Stereo Jack + 3-pin L/G/R output Supported Formats WAV, APE, FLAC, MP3 Transmission Distance Up to 15 meters (open space) Bluetooth Profiles A2DP, AVCTP, AVDTP, AVRCP, HFP VHM-314 Pinout and Interface Details
Audio channel breakout pads located at the rear of the board. L: Left Channel Output G: Audio Ground (GND) R: Right Channel Output 4. Operational Modes and LED Behavior
Before searching, look closely at the chip on your particular VHM-314 module. The markings (e.g., AC1847AP1P803 , AS19AP28150 ) are the key to unlocking the correct technical details.
Plug a connected to a 5V power source into the VHM-314.