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I2S output bluetooth audio module
I2S output bluetooth audio module
I2S output bluetooth audio module
I2S output bluetooth audio module
EWM104-BT3040(I2S) I2S output bluetooth audio module Qualcomm QCC3040 Chip solution Support high-quality audio formats aptX/aptX-LL/aptX-AD/aptX-HD/AAC/SBC

[Chip Solution]：QCC3040

[Output Interface]： I2S

[Communication Interface]：USB

[Communication Distance]：220m

[Size]：13*18mm

[Weight]：1.0 ± 0.1g

[Introduction]：The EWM104-BT3040 (I2S) is a high-performance, low-power, cost-effective Bluetooth audio module with BLE 5.2 protocol from Ebyte. Using Qualcomm's QCC3040 chip, the module provides a system with on-chip Bluetooth, audio, and a programmable application processor. The module includes high-performance analog and digital audio codecs, Class AB and Class D headphone drivers, advanced power management, flexible interface protocols, and programmable input/output (PIO).

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PIN
Pin serial number Pin name Pin direction Pin Usage
1 PIUS[20] I/O Programmable I/O ports 20, other functions: PCM_DOUT1
2 PIUS[19] I/O PIUS[19]
3 PIUS[18] I/O I2S bit data output, PIO [18]
4 PIUS[17] I/O I2S frame clock output, PIO[17]
5 PIUS[16] I/O I2S bit clock output, PIO[16]
6 PIUS[15] I/O I2S system clock output, PIO[15]
7 VBAT_SENSE Analog Battery voltage detection
8 USB_DN - Full speed USB interface DN
9 USB_DP - Full speed USB interface DP
10 VCHG P Internal power regulator and charger voltage input, 4.0~6.5V
11 VCHG_SENSE Analog The charger input voltage sense pin, which is connected to the VCHG pin when using an internal charger or without a charger.  
12 CHG_EXT Analog External charger transistor current control.  
13 SYS_CTRL I It is usually connected to a switch button PIO[0], which rises along the power_on mode and falls along the power_off mode in the exit state, and automatically enters the pairing state when it is turned on
14 VBAT P Battery power input, 3.0~4.6V
15 GND G GND
16 LED[0] Analog/DO Analog/digital input, open-drain LED output. It flashes alternately with LED1 in the paired state
17 LED[1] Analog/DO Analog/digital input, open-drain LED output. It flashes alternately with LED0 in the paired state and is always on when connected to Bluetooth
18 LED[2] Analog/DO Analog/digital input, open-drain LED output
19 LED[4] Analog/DO Analog/digital input, open-drain LED output
20 LED[5] Analog/DO Analog/digital input, open-drain LED output
21 GND - GND
22 1V8 P 1.8V power output
23 VDD_PADS1 P 1.8V/3.3V PIO voltage input
24 VDD_PADS3 P 1.8V/3.3V PIO voltage input
25 PIUS[4] I/O Short press a song, long press the volume up (need to go out of the warehouse + media playback condition), user programmable
26 PIUS[3] I/O Short press the previous song, long press the volume down (need to go out of the warehouse + media playback conditions), user programmable
27 PIUS[6] I/O PIUS[6]
28 PIUS[5] I/O It can be used in the out-of-warehouse state, short press LED0, LED1, LED2 to flash, and the user can program
29 PIUS[8] I/O PIUS[8]
30 PIUS[7] I/O PIUS[7]
31 PIUS[2] I/O PIO[2], short press to pause playback, long press for 3 seconds to enter pairing, long press for 6 seconds to clear the pairing list, user programmable
32 RESET/PIO[1] I/O Reset, PIO [1]
33 PIUS[60] I/O PIUS[60]
34 NC - -
35 NC - -
36 SPK-LN Analog DAC audio differential outputs the negative left channel
37 SPK-LP Analog DAC audio differential outputs the left channel cathode
38 GND - GND
39 MIC_BIAS Analog Microphone bias voltage output, 1.5~2.1V
40 MIC2_N Analog Microphone differential input right channel negative, default firmware is not used, user programmable
41 MIC2_P Analog Microphone differential input right channel positive electrode, default firmware is not used, user programmable
42 MIC1_N Analog Microphone differential input left channel negative, default firmware is not used, user programmable
43 MIC1_P Analog Microphone differential input left channel positive, default firmware is not used, user programmable
44 GND - GND
45 GND - GND
46 RF_PORT - Bluetooth antenna interface
47 GND - GND
48 PIUS[14] I/O PIUS[14]
49 PIUS[13] I/O PIUS[13]
50 PIUS[12] I/O PIUS[12]
51 PIUS[11] I/O PIUS[11]
52 PIUS[10] I/O PIUS[10]
53 PIO[09] I/O PIO[09]
54 PIUS[21] I/O PIO[21], audio amplifier enable, customer programmable

Special Note:

The above pin function description is only for the default program function at our factory, if you need other functions, you can contact our company to customize, please refer to the official user manual of QCC3040 to develop the pin function by yourself.