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| 2.4GHz Advanced Wireless Audio Module |
| Model No : DXIS-81 |
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-- FEATURES --
 2.4GHz ISM / unlicensed band
DSSS digital modulation and demodulation
upport uncompressed and lossless wireless audio transmission
I2S interface, with 2 channels downstream and 1 channel (mono) upstream
Digital SNR up to 95dB, THD+N up to -90dB @1kHz for I2S interface
S/PDIF interface supports LPCM, AC3, and DTS
USB interface supports USB audio input and output
I2C and GPIO interfaces
Control channel (CCH) available, for up to 3.2kbps for both downstream and upstream signals,  such as volume control and pause
RoHS Compliant
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Frequency Range |
2.400 ~ 2.497GHz
(Default frequencies: 2417MHz, 2442 MHz, and 2467MHz) |
Modulation Technique |
DSSS |
Host interface |
2 pcs of connector header 1*13 pin Pitch 2.0mm male type,
for S/PDIF, I2S, USB, GPIO, and I2C connections |
THD+N |
-90 dB @1KHz, I2S |
SNR |
95dB @1KHz, I2S |
Audio Quality |
16-bit 48 kHz uncompressed |
Operation Voltage |
3.3 ± 0.3 V |
Current Consumption |
70 ~ 300 mA |
Operation Distance |
Indoor up to 50 m
Outdoor up to 250 m |
Operation Modes |
Firm LinkTMand Broadcasting modes |
RF Tx Output Power |
12.5 ± 1.5 dBm |
RF Rx Sensitivity |
-85 dBm |
Interference Avoidance |
Active hand-shaking avoidance under Firm LinkTM mode |
PCB Dimension |
31 x 24mm |
Operation Temperature |
0°C ~ 55°C |
Storage Temperature |
-20°C ~ 80°C |
Antenna |
1 pc of PIFA antenna |
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