is a popular, low-cost Bluetooth 5.0 audio receiver module frequently used in DIY audio projects. While a formal multi-page "datasheet" from a single manufacturer can be hard to find, the technical specifications and interface details are well-documented across several supplier resources. 📋 Key Technical Specifications Bluetooth Version: 5.0 (backward compatible with 4.0, 4.1, and 4.2) Operating Voltage: 3.7V to 5V DC Power Options:
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.
3.7V to 5V DC (supports LiPo batteries via pads or USB power). Bluetooth Version: 5.0 (supports 4.0/4.1/4.2). Audio Output: 3.5mm Stereo Jack + solder pads (L/G/R). Decoding Formats: WAV, APE, FLAC, MP3 (lossless decoding). Performance: SNR (Signal-to-Noise Ratio): -70dB (approx. 0.1%). Transmission Distance: Up to 15 meters in open space. Raspberry Pi Official Magazine Version Variations vhm 314 datasheet free
Works with Bluetooth 4.1, 4.2, and 5.0 master devices. 2. Technical Specifications
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 is a popular, low-cost Bluetooth 5
Warning: Shared power supplies can sometimes introduce ground loop hum. See the troubleshooting section below to resolve this. Scenario B: Battery Powered Portable Speaker
| Parameter | Estimated Value | Notes | | :--- | :--- | :--- | | | Unipolar Hall Effect Switch | Digital Output | | Operating Voltage | 3.8V – 30V DC | Typically 5V or 12V logic compatible. | | Supply Current | ~5mA – 10mA | Typical internal current draw. | | Output Type | Open Collector ( sinking ) | Requires a pull-up resistor to function. | | Magnetic Trip Point (Bop) | 30 – 80 Gauss (approx.) | Sensitivity varies by grade (A, B, C). | | Release Point (Brp) | 10 – 50 Gauss (approx.) | Hysteresis ensures clean switching. | | Temperature Range | -40°C to +85°C (Industrial) | Some VHM series extend to 125°C (Automotive). | | Package | SOT-23 or TO-92 | 3-pin configuration. | Whether you are a design engineer, a hobbyist
Convenient 5V power input using standard phone chargers or power banks.
The VHM-314 is widely recognized as a compact and low-cost Bluetooth audio receiver module. In its most common form, it's a small printed circuit board (PCB) that allows you to add wireless audio streaming capabilities to any device with an auxiliary (AUX) input, such as older car stereos, powered speakers, DIY amplifiers, and home audio systems. It receives audio wirelessly from a smartphone, tablet, or computer and outputs it as a standard analog stereo signal through a 3.5mm jack or solder pads.
Based on standard electronic component naming conventions, here is the technical breakdown of what "VHM 314" likely represents:
This usually occurs when the VHM-314 and the audio amplifier share the same power supply. Electrical noise from the Bluetooth chip bleeds into the audio path.