Brand Name: NoEnName_Null
PCM Sampling Frequencies: 48 kHz
PCM Word Length: 24-bit
Inputs: Optical (SPDIF),Coaxial
Material: NONE
Origin: CN(Origin)
Outputs: 3.5 mm
Type: Desktop
DSD Sampling Frequencies: NONE
Certification: NONE
Bluetooth: Yes
WIFI: No
Bluetooth version: V5.0
Brand Name: NoEnName_Null
PCM Sampling Frequencies: 48 kHz
PCM Word Length: 24-bit
Inputs: Optical (SPDIF),Coaxial
Material: NONE
Origin: Mainland China
Outputs: 3.5 mm
Type: Desktop
DSD Sampling Frequencies: NONE
Certification: NONE
Bluetooth: Yes
WIFI: No
Bluetooth version: V5.0
Brand Name: NoEnName_Null
PCM Sampling Frequencies: 48 kHz
PCM Word Length: 24-bit
Inputs: Optical (SPDIF),Coaxial
Material: NONE
Origin: Mainland China
Outputs: 3.5 mm
Type: Desktop
DSD Sampling Frequencies: NONE
Certification: NONE
Bluetooth: Yes
WIFI: No
Bluetooth version: V5.0
Module model: BTM331
Bluetooth chip: QCC3031, 32M SPI flash built in the module
Bluetooth version: 5.1
Module size: 13mm x 18mm x 2.5mm
Power supply voltage: 3.0-4.3V
SPDIF firmware description:
1. Support SBC, AAC, aptx, aptx HD decoding, no call function, optional I2S, analog output
2. Key Description:
SYS_ CTRL: power on at high level, power off at low level, and enter pairing mode automatically when starting
PIO2: short press play pause, long press 3 seconds to enter pairing, long press 5 seconds to clear pairing record
PIO3: short press the previous song, long press to decrease volume
PIO4: short press one song, long press to increase volume
PIO5: connect high level, not connect low level
PIO19: with audio output high level, without audio low level
PIO20: output for SPDIF
3. Description of codec indicator:
Bluetooth not connected: LED0 LED1 Alternate flicker
Bluetooth connected: LED1 is always on
Bluetooth audio playback: LED1 is always on