Type: Wireless Audio
Certification: Others
Output Power: 1W
Size (mm):39.3mmX24mm
Parameter | Test Conditions | Min. | Typ. | Max. | Unit |
Operating voltage |
| 3.3 | 4.2 | 5.5 | V |
working temperature |
| -30 | 25 | 70 | ℃ |
Current consumption | |||||
Sleep current |
|
| 10 | 20 | uA |
RX current | @ No audio output |
| 50 | 55 | mA |
@8Ω,1W audio output |
|
|
| ||
TX current | 4v,@30dBm |
| 450 | 550 | mA |
RF parameter | |||||
Operating frequency | UHF | 410 |
| 490 | MHz |
Customizable frequency |
| 150 |
| 960 | MHz |
Default frequency value for 16 channels | UHF ( 1MHz interval) | 440.125 |
| 455.125 | MHz
|
Transmit power | @5V | 16 |
| 32 | dBm |
Bandwidth(BW) |
|
| 500 |
| KHz |
Receiving sensitivity |
|
| -117 |
| dBm |
Audio parameters | |||||
Modulation sensitivity |
|
| 10 | 100 | mV |
Receive signal-to-noise ratio(SNR) |
|
| 90 |
| dB |
Frequency response |
| 60 |
| 3800 | Hz |
Audio output(line out) | Load 16 Ω |
|
| 40 | mW |
Delay parameters | 2 channels | 80 | 100 | 120 | ms |
3 channels | 120 | 160 | 180 | ms | |
4 channels | 160 | 200 | 240 | ms | |
6 channels | 240 | 300 | 360 | ms | |
8 channels | 320 | 400 | 480 | ms |
Type | wireless audio |
Output Power | 1 W |
Pin NO. | Pin name | I/O | Description |
1 | TXLED | O | Transmitting indicator, connected with external led, turn on by low level output when data or voice is transmitting, (suggest 1K ohm resistor for current limitation) |
2 | RESET | I | Module reset pin, externally pull down for more than 5ms will reset the module |
3,6,10, 12,14,15,19 | GND |
| Connect to power negative |
4 | MIC_N_IN | I | Negative electrode of external microphone, serial connected with 220 nH inductance, refer to below typical circuit. |
5 | MIC_P_IN | I | Positive electrode of external microphone, serial connected with 220 nH inductance, refer to below typical circuit. |
7 | AUX_IN | I | Line in & Microphone input |
8 | LINE_OUT | O | Connected with 16 Ω earphones |
9 | RESERVED |
| NC |
10 | TXEN | O | Transmit enable pin, outputs high level (3.3V) when transmitting, low level when receiving |
11 | RXANT | O | RF signal input for reception, connect to 50-ohm antenna |
13 | TXANT | O | RF signal output for transmission, connect to 50-ohm antenna |
14 | VCC |
| Power supply ( 3.3 – 5.5V ) |
16 | SDIN | I | Connected with External I2S device, ( 0 – 3.3V ) |
17 | BCLK | O | |
18 | WS | O | |
20 | SD | O | |
21 | PTT | I | Press to talk, pull down to enter transmission mode, pull high or leave open to enter receive mode, pull-up internally, |
22 | TXD | O | Serial communication |
23 | RXD | I | Serial communication |
24 | MCLK | O | Connected with External I2S device (0-3.3V) |
25 | RXLED | O | Receiving indicator, connected with external led, turn on by low level output when data or voice received, (suggest 1K ohm resistor for current limitation) |
26 | CS | I | Floating input, low level to enter sleep |
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