The RN52 (part number RN52-I/RM) Bluetooth audio module provides a fully integrated solution for delivering high-quality stereo audio in a small form factor. It combines a Class 2 Bluetooth radio with an embedded DSP processor, controlled and configured by simple ASCII commands and GPIO.
It integrates RF, a baseband controller, and DSP, making it a complete Bluetooth audio wireless link. The RN52 supports HFP/HSP, A2DP, AVRCP, SPP, and iAP profiles and includes support for codecs such as SBC, aptX®, and AAC. It provides a UART interface, GPIO, stereo speaker outputs, stereo microphone inputs, and a USB port.
For prototyping with the RN52, there is a new development tool, the RN-52-EK. This simple-to-use kit demonstrates the key features of the module allowing designers to quickly and easily evaluate and develop prototypes.
Features
- Fully certified Bluetooth version 3.0 audio module, fully compatible with Bluetooth version 2.1+EDR, 1.2, and 1.1
- Software configurable through commands over UART console interface
- Embedded Bluetooth stack profiles: SPP, A2DP, HFP/HSP, and AVRCP
- Supports iAP profile discovery for iPhone® and iPod® Bluetooth accessories
- Available as an A2DP audio source or sink
- Postage-stamp-sized form factor, 13.5 x 26 x 2.7mm
- Dual-channel, differential audio input and output for highest quality audio
- External audio codecs supported via I2S and S/PDIF interface
- Castellated SMT pads for easy and reliable PCB mounting
- Additional support for codecs such as aptX®, AAC, MP3, and others
- Environmentally friendly, RoHS compliant
- Certifications: FCC, IC, CE
- Bluetooth SIG certified
Applications
- Wireless stereo speakers and headsets
- Wireless audio docking station for smartphones
- High-quality, 2-channel audio streaming
- Smartphone app streaming
- Automotive hands free audio
- Remote control for media player
- Medical devices
- Intercom push-to-talk audio connection
Specifications
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Bluetooth Versions
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3.0, 2.1 + EDR, 2.0, 1.2, 1.1
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Data rate
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3.0 Mbps burst mode, 1.5 Mbps sustained
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Frequency Band
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2.4 ~ 2.48 GHz
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Modulation Techniques
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GFSK, PI/4-DQPSK, 8 DPSK
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Profiles
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A2DP, AVRCP, SPP, HFP/HSP, iAP
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Supply voltage
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3.3V port: 2.7 ~ 3.6 V DC
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Output power
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+4 dBm
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Power consumption
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Standby/Idle 25 mA : Connected (normal mode) 30 mA : Connected (low power Sniff) 8 mA : Standby/Idle (Deep sleep enabled) 26 uA
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Operating temperature range
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-40C to +85C
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Interface
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UART, USB, GPIO, Analog speaker, microphone, I2S master mode, S/PDIF
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Antenna
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PCB trace
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Size
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13.5 x 26.0 x 2.7 (mm)
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Weight
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0.042 oz (1.2 grams)
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Certifications
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FCC, IC, CE, Bluetooth SIG
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Block Diagram
Resources
RN52 Data Sheet (PDF)
RN-52-EK User Guide (PDF)
RN52 Command Reference User Guide (PDF)
RN52 Product Brief (PDF)
