SA618F22 : 160mW Full Duplex Wireless Audio Transceiver Module
Type: Wireless Audio
Certification: Others
Output Power: 160mW
Size:48.1*33.9
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SA628F22 : Easy to Use Full Duplex Wireless Audio Module
- SA628F22 is a full duplex wireless voice module with mesh network.SA628F22 is very easy to use. It start to work by just connecting antenna, power supply and speaker, microphone, Audio amplifier, RF channel switch, volume adjustment are all embedded on board. SA628F22 has USB interface, and specified PC software. It can be configured and SMS Tx/Rx easily by the PC software.
- The SA628F22 module has built-in high speed micro -controllers, high quality voice Codec, high-performance RF chips and amplifiers. This wireless module adopts the newest generation LoRa chip, which has the characteristics of low power consumption, long distance, and flexible frequency adjustment. SA628F22 has I2S and analog audio interface for different application. SA628F22 support full duplex SMS communication.
- SA628F22 embed very good voice codec, which achieve much better voice quality than walkie talkie in the market.
- SA628F22 supports concurrent Tx and concurrent Rx. It support maximum 8 devices transmitting simultaneously. There is no limitation in receiving. Mesh Network is available to extend the range. The mesh function is easy to achieve by setting the modules as Node, Router or Node & Router.
- SA628F22 can be upgraded over air ( OTA ) or by serial communication.
- SA628F22 strictly uses lead -free process production and testing, which meets the standards of ROHS and Reach
| Parameters | Condition | Min. | Typ. | Max. | Unit |
| Power Supply | 3.3 | 4 | 5.5 | V | |
| Working temperature | -30 | 25 | 70 | ℃ | |
| Current consumption | |||||
| Sleep current | 68 | uA | |||
| RX Current | @no voice output | 73 | mA | ||
| @4V,8ohm,2W speaker | 450 | ||||
| TX current(High power) | 4.2v,@22dBm | 130 | mA | ||
| RF Parameters | |||||
| Operating frequency | UHF | 420 | 510 | MHz | |
| Customizable frequency | 150 | 960 | MHz | ||
| Default frequency value for 16 channels | UHF ( 1MHz interval) | 440.125 | 455.125 | MHz | |
| Transmit power | Default:22dBm | 0 | 22 | dBm | |
| Second Harmonic | -40 | dBm | |||
| Bandwidth（BW) | 500 | KHz | |||
| Receiving sensitivity | -117 | dBm | |||
| voice parameters | |||||
| Modulation sensitivity | 10 | 100 | mV | ||
| Receive signal-to-noise ratio(SNR) | 90 | dB | |||
| Frequency response | 60 | 3800 | Hz | ||
| Voice output（line out) | Load 16 Ω | 40 | mW | ||
| Voice output power（SPK+,SPK-) | Load 8 Ω | 2000 | mW | ||
| Delay parameters | 2channels | 80 | 100 | 120 | ms |
| 3channels | 120 | 160 | 180 | ms | |
| 4channels | 160 | 200 | 240 | ms | |
| 6channels | 240 | 300 | 360 | ms | |
| 8channels | 320 | 400 | 480 | ms | |
| Type | wireless audio |
Features
- Frequency Band: 420~510MHz(Customizable 150-960 MHz)
- USBInterface
- PC software configuration, easy operation
- 8-Channels Full-Duplex Data/voice Communication
- Echo cancellation function
- VOX & PTT
- OTA &Serial upgrade
- I2S Digital voice+analog voice
- Line In + Mic input
- Mesh Network, concurrent Tx/Rx
- 1-3KM transmission distance in the open area
- High Receiving sensitivity:-117 dBm
- Low power consumption
Applications
- Fire emergency communication
- Subway, tunnel communication
- Riding system
- High-quality full duplex walkie talkie
- conference call system
- Building community security system
- Security intercom system for special scenarios
- Headset walkie-talkie
- Special job assignment walkie talkie
| Pin No. | Pin name | Description |
| 1 | VCC | VCC(3.3-5.5V) |
| 2,8,11,17 | GND | Ground |
| 3 | SDIN | ExternalI2S(0-3.3V) |
| 4 | BCLK | ExternalI2S(0-3.3V) |
| 5 | WS | ExternalI2S(0-3.3V) |
| 6 | VOL-ADJ | 50K variable resistoris recommended, See *5 above |
| 7 | SD | ExternalI2S(0-3.3V) |
| 9 | MCLK | ExternalI2S(0-3.3V) |
| 10 | CS | 0: sleep, 1: working, Pull up internally. |
| 12 | PTT | Press to talk, 0: RX mode, 1: Tx mode. Pull up internally |
| 13 | MIC_N | Connected with external microphone See *3 above. |
| 14 | MIC_P | |
| 15 | SPK+ | Connect with 8 ohm 2W speaker |
| 16 | SPK- | |
| 18 | LINEOUT | Line out , not amplified, can drive earphone and headphone |
| 19 | Reserved | NC |
| 20 | LINEIN | Line in ,maximum 1VRMS |
| 21 | 8 | the onboard 16 RF channel switch, eg. When the rotary switch changed to channel 11th, the output ( 8, 4, 2, 1 ) is: 1011: channel 11th |
| 22 | 4 | |
| 23 | 2 | |
| 24 | 1 |
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