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Help CenterMini Size V4.0 Bluetooth Module Bluetooth Stereo Audio Receiving Module
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Mini size v4.0 bluetooth module bluetooth stereo audio receiving module
This is a ultra small size v4.0 bluetooth module bluetooth stereo audio receiving module with PCB antenna built in, focusing on in-ear stereo headset applications. The module is elaborately designed in EMI and audio configuration based on CSR8645 with CVC noise & echo cancellation and apt-X technologies, support for multi-link, smart apps connectivity, dual-mic, voice prompt features. It has excellent RF performance by fine-tuned RF match and antenna directionality.
Mini size v4.0 bluetooth module bluetooth stereo audio receiving module
1. Smart high-end bluetooth module
2. Mini size v4.0 bluetooth module bluetooth stereo audio receiving module
3. Super Mini Size with PCB antenna built in
4. Support for Hi-Fi sound quality
5. Apt-X decoder built in
6. RF transmission power level control configurable
7. Multi-band EQ tunable, S3D and Volume Boost
8. Support for voice prompt
9. Support for USB charging enumeration and Charge management
10. Verified production line capability and quality system
Mini size v4.0 bluetooth module bluetooth stereo audio receiving module
| Spec Item | Range | |
| General | Dimension (mm) | 17.0 x 9.0 x 3.0 mm (double side mounting) |
| PCB material | FR4 4 layers | |
| Soldering pin type | Double soldering pads for flat cable | |
| Antenna | Antenna built-in | |
| Firmware memory | ROM | |
| Bluetooth | Bluetooth version | Bluetooth specification: V4.1 + EDR |
| Bluetooth chipset | BlueCore® CSR8645™ | |
| Profiles supported | A2DP/AVRCP/HFP/HSP | |
| Connectivity | Multi-link - A2DP/HFP | 2 x host devices (A2DP/HFP) or 2 x headsets |
| App connection | Support for Smart App Connectivity | |
| NFC | External NFC module available (Optional) | |
| RF/Wireless | Frequency range | 2.402GHz to 2.483GHz |
| Transmission power | Class 2 , -4 ~ +6 dBm | |
| Sensitivity | -90dBm (typical) | |
| Wireless Range | >10m ( free space) | |
| Audio | Microphone inputs | 2 x analog mic (stereo or dual-mono) |
| Line-in | Support for stereo line-in | |
| Output for speaker | Stereo differential output (upto 50mW) | |
| ADC sampling | 8 KHz ~ 48 KHz, 16-bit high-quality | |
| DAC sampling | 8 KHz ~ 96 KHz, 16-bit high-quality | |
| Codec | Hi-Fi quality stereo codec | |
| Decoder support | aptX, SBC, MP3 and AAC | |
| Music Enhancements | Configurable EQ, S3D, Volume Boost | |
| Noise/Echo reduction | CVC6.0 noise and echo reduction | |
| HSP voice | HD voice, bi-directional noise reduction | |
| Electrical | Supply Voltage - Charger | 4.75~5.75V (Recommended) |
| Supply Voltage - Battery | 4.30V (Max) | |
| Supply Voltage | 3.0V~3.7V (Recommended) | |
| Power comsumption - StandBy | ~250uA (typical) @ACL link, Sniff 500ms, LED off | |
| Power comsumption - SCO | ~12 mA (typical) @SCO link, HV3 packet | |
| Power comsumption - A2DP | ~14 mA (typical) @SBC, 48KHz sampling | |
About ALMsound
Shenzhen ALM Technology Co., Ltd. is a innovation company in wireless audio technology and product field, providing professional value-added service for both Chinese export-oriented enterprises and international sourcing customers, focusing on medium/high end Bluetooth products with high quality in acoustic and RF enhanced,based on our strengths in wireless technology and industrial expertise from an strong expert team in R&D and production quality management.
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