Supports both I2S digital and differential analog audio output
Description
BTM303/QCC3003 Stereo Ble 5.0 Stereo Transmitter I2S Analog Output Ble Audio Transmitter and Receiver
Product Description
Overview
the Ble 5.0 modules SJR-BTM303 5.0 modules SJR-BTM303 Which is a high performance, cost effective, low power and compact solution. The Ble module provides a complete 2.4GHz Ble system based on the QCC3003 QFN chipset which is a single chip radio and baseband IC for Ble 2.4GHz systems. This module is fully qualified single-chip dual mode Ble @v5.0 system.
Key Features
Additional Functionality
· Support for multi-language programmable audio prompts
· Multipoint support for A2DP connection to 2 A2DP sources for music playback Talk-time extension, which automatically reduces processor functions to extend use when a low battery condition is
detected
detected
· Slim module with 13mm ×26mm×2.4mm
Ble Profiles
Ble v5.0 specification support Qualcomm Bletooth Low Energy secure connection A2DP V1.3.1 AVRCP V1.6 HFP V1.7 HSPV1.2 SPP V1.2 DIDV1.3 HID V1.1 PXP v1.0.1 FMP V1.0BAS V1.0 QTIL's proximity pairing and QTIL's proximity connection
Music Enhancements
Music Enhancements · SBC and AAC audio codecs ·Qualcomm Shareme, which allows the sharing of audio from QCC3003 to another Ble A2DP sink device
·Configurable Signal Detection to trigger events
·1 bank of up to 10-stage Speaker Parametric EQ
·6 banks of up to 5-stage User Parametric EQ for music enhancement
·Qualcomm meloDW Expansion audio processing:3D stereo widening
·Compander to compress or expand the dynamic range of the audio
·Post Mastering to improve DAC fidelity
·Configurable Signal Detection to trigger events
·1 bank of up to 10-stage Speaker Parametric EQ
·6 banks of up to 5-stage User Parametric EQ for music enhancement
·Qualcomm meloDW Expansion audio processing:3D stereo widening
·Compander to compress or expand the dynamic range of the audio
·Post Mastering to improve DAC fidelity
Applications
· Stereo Headsets
· Wired Stereo headsets and headphones
· Portable Ble Stereo speakers
Precautions
1. The module pins are dense and require a good welder foundation. Adapter plate can be purchased for easy soldering (standard 2.54 pitch) 2. CSR Ble module audio is differential output, you need to add op amp or amp circuit to single-ended output (left channel, right channel, audio common). 3. Only the module application data, ie the Ble module specification and the Ble module reference schematic, are provided. 4. Support app control, you can view Ble information and modify EQ function
Software Description:
Ble name: BT Speaker Note: The button is active high (MFB high level is 3.3V, PIO high level is 1.8V)! Another: Here is the PIO port, not the actual PIN pin, you need to check the specification to see the actual PIN foot! The button description is as follows:
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MFB
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High level boot, low level shutdown (PIN30 needs low level when the module is powered on, need to do delay circuit when powering
on, can't pull up directly, boot automatically enters pairing mode) |
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PIO6
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Amplifier control enable pin (output level 1.8V when audio output is available)
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PIO8
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Short press play/pause/answer/hang up, long press 1 second to reject the call
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PIO1
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Short press the previous track, long press the volume minus
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PIO7
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Short press a song, long press volume plus
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Special function description PIO8
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Press and hold for 3 seconds to force the pairing mode, press and hold for 6 seconds to clear the pairing list.
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Details Images