SA618F22 : 160mW Full Duplex Wireless Audio Transceiver Module
Type: Wireless Audio
Certification: Others
Output Power: 160mW
Size:48.1*33.9
HOME > PRODUCTS > WIRELESS AUDIO MODULES > SA326 : LOW-LATENCY & HIGH FIDELITY WIRELESS AUDIO...
SA326 : Low-Latency & High Fidelity Wireless Audio Module
NiceRF launched a new low-latency, long-distance, high-sampling rate, high-fidelity wireless audio module SA326. SA326 series products are divided into transmitter module SA326-TX and receiver module SA326-RX. This product is an application board for SA316-TX and SA316-RX modules. It can work after power-on. You can also directly set the frequency of the module with PC software. , Sound size and other parameters, greatly simplify the user's development difficulty, this product is widely used in occasions with relatively high sound quality requirements.
Parameter | Test Conditions | Min. | Typ. | Max. | Unit |
Operating voltage range | 3.3 | 4.2 | 6 | V | |
Range of working temperature | -20 | 25 | 60 | ℃ | |
Operating frequency range | @UHF | 500 | 980 | MHz | |
@VHF | 160 | 270 | MHz | ||
Audio transmission and reception delay | 4 | ms | |||
Serial port baud rate | 9600 | bps | |||
Current consumption | |||||
Sleep current（SA326-RX) | < 45 | uA | |||
Sleep current（SA326-TX) | < 45 | uA | |||
Receive current（SA326-RX) | @VCC=4.2V | < 140 | mA | ||
Emission current（SA326-TX） | < 150 | mA | |||
Transmit parameter | |||||
Transmit power | @VCC=4.2V | 0 | 10 | dBm | |
Emission bandwidth（BW) | 300 | KHz | |||
Adjacent channel power ratio（ACPR） | @600KHZ | -60 | dBc | ||
Maximum microphone input voltage | 0.3 | 1.5 | Vrms | ||
Audio frequency response range | 20 | 20k | Hz | ||
Receive parameters | |||||
Receiving sensitivity | -96 | dBm | |||
Audio output amplitude (differential) | 400 | mVrms | |||
Audio output drive resistance | 600 | Ohm | |||
Signal to Noise Ratio (SNR) | @1KHz，Vmic=-30dBv | 96 | dB | ||
Total harmonic distortion (THD) | @48K sampling rate, Vmic=-30dBv | 0.03 | % | ||
| Type | Wireless audio |
| Output Power | 10mW |
Features of SA326 wireless audio module
- UHF frequency band：868 MHz, UHF frequency band：500~980 MHz, VHF frequency band：160~270 MHz
- The transmission distance is 200 meters in the open area
- Receiving sensitivity: -96 dBm
- Audio signal to noise ratio: 96 dB
- Frequency response: 20 Hz-20 KHz
- The delay from microphone input to audio output is less than 3ms
- Digital modulation method: pi/4 DQPSK
- Occupied bandwidth: <300 KHz
- Transmission rate: 204.8 Ksps
- Sampling rate: 48 KHz
Applications of SA326 wireless audio module
- Wired speakers become wireless speakers
- wireless microphone
- Wireless Headphones
- High-quality wireless audio transmission
SA326-TX
SA326-RX
SA326-TX
| Pin NO. | Pin name | I/O | Level standard | Description |
| 1 | GND | 0 | Connect the negative pole of the power supply | |
| 2 | 1 | I | 0-3.3V | Frequency 16 channel 8421 encoding, the first digit, default "1" output |
| 3 | 2 | I | 0-3.3V | Frequency 16-channel 8421 encoding, the second bit, default "1" output |
| 4 | 4 | I | 0-3.3V | Frequency 16 channel 8421 encoding, the 4th bit, default "1" output |
| 5 | 8 | I | 0-3.3V | Frequency 16 channel 8421 encoding, the 8th bit, default "1" output |
| 6 | CS | I/O | 0-3.3V | Internally connected to the EN of the LDO, pull down the dormancy, internal pull-up, default "1" output |
| 7 | GND | 0 | Connect the negative pole of the power supply | |
| 8 | VCC | 3.3-6V | The positive pole of the external power supply. (Typical value 4V) | |
| 9 | GPIO0 | I/O | 0-3.3V | Internally connected to GPIO0 of SA316-TX, when using I2S mode, it can be configured as LRCK |
| 10 | GPIO1 | I/O | 0-3.3V | Internally connected to GPIO1 of SA316-TX, when using I2S mode, it can be configured as SCK |
| 11 | GPIO2 | I/O | 0-3.3V | Internally connected to GPIO2 of SA316-TX, when using I2S mode, it can be configured as MCLK |
| 12 | GPIO3 | I/O | 0-3.3V | Connect to GPIO3 of SA316-TX, it can be configured as SDIN when using I2S mode |
| 13 | GPIO4 | I/0 | 0-3.3V | GPIO4 with internal audio chip |
| 14，15 | GND | 0 | Connect the negative pole of the power supply | |
| 16 | MIC_P | I | Microphone input positive terminal, (the best signal is less than 300mVrms) |
SA326-RX
| Pin NO. | Pin name | I/O | Level standard | Description |
| 1 | 1 | I | 0-3.3V | Frequency 16 channel 8421 encoding, the first digit, default "1" output |
| 2 | 2 | I | 0-3.3V | Frequency 16-channel 8421 encoding, the second bit, default "1" output |
| 3 | 4 | I | 0-3.3V | Frequency 16 channel 8421 encoding, the 4th bit, default "1" output |
| 4 | 8 | I | 0-3.3V | Frequency 16 channel 8421 encoding, the 8th bit, default "1" output |
| 5 | GPIO4 | I/O | 0-3.3V | Connect to GPIO4 of SA316-RX |
| 6 | GPIO3 | I/O | 0-3.3V | Internally connected to GPIO3 of SA316-RX, it can be configured as MCLK when using I2S mode |
| 7 | GPIO2 | I/O | 0-3.3V | Internally connected to GPIO2 of SA316-RX, when using I2S mode, it can be configured as SDIO |
| 8 | CS | I/O | 0-3.3V | Internally connected to the EN of the LDO, pull down the dormancy, internal pull-up, default "1" output |
| 9 | GND | I | 0 | Connect the negative pole of the power supply |
| 10 | VCC | I | 3.3-6V | The positive pole of the external power supply. (Typical value 4V) |
| 11 | GPIO1 | I/O | 0-3.3V | Internally connected to GPIO1 of SA316-RX, when using I2S mode, it can be configured as SCK |
| 12 | GPIO0 | I/O | 0-3.3V | Internally connected to GPIO0 of SA316-RX, when using I2S mode, it can be configured as LRCK |
| 13 | GND | I | 0 | Connect the negative pole of the power supply |
| 14 | LOUL LOUT+ | O | Connect to LOUT+ of SA316-RX, which can directly drive earphones | |
| 15 | GND | I | 0 | Connect the negative pole of the power supply |
| 16 | ROUT+ | O | Connect to ROUT+ of SA316-RX, which can directly drive earphones | |
| 17 | GND | I | 0 | Connect the negative pole of the power supply |
| 18 | VOL-ADJ | I | 3.33. 3.3V | Volume adjustment pin, the module has been connected to a 50K ohm adjustable potentiometer, and an external potentiometer can be connected |
| 19 | SPKN | O | Power amplifier output pin, external 4 ohm or 8 ohm 2W speaker | |
| 20 | SPKP | O | Power amplifier output pin, external 4 ohm or 8 ohm 2W speaker |
SA326-TX
SA326-RX
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