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2PCS SA628F22 Audio TX RX Modules

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

Feature

• Frequency Band: 420~510MHz(Customizable 150-960 MHz)
• USB Interface
• 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

Block Diagram

Specification

Typical Schematic Circuit

Pin Definition

Mechanical Dimensions(Unit:mm)

PC Software

SA628F22 comes with a PC software, which is convenient for customer to set parameter and SMS operation. For details, please refer to the document "SA618/628 Series PC User Guide". User can download the PC software in our Website freely.