HOMEPRODUCTSWIRELESS AUDIO MODULES SA628F22 :16K SAMPLING RATE FULL DUPLEX WIRELESS ...
SA628F22 :16K Sampling Rate  Full Duplex Wireless Audio Module
SA628F22 :16K Sampling Rate  Full Duplex Wireless Audio Module
SA628F22 :16K Sampling Rate  Full Duplex Wireless Audio Module
SA628F22 :16K Sampling Rate  Full Duplex Wireless Audio Module
SA628F22 :16K Sampling Rate  Full Duplex Wireless Audio Module
SA628F22 :16K Sampling Rate  Full Duplex Wireless Audio Module
SA628F22 :16K Sampling Rate  Full Duplex Wireless Audio Module
SA628F22 :16K Sampling Rate  Full Duplex Wireless Audio Module
SA628F22 :16K Sampling Rate  Full Duplex Wireless Audio Module
SA628F22 :16K Sampling Rate  Full Duplex Wireless Audio Module
SA628F22 :16K Sampling Rate  Full Duplex Wireless Audio Module
SA628F22 :16K Sampling Rate  Full Duplex Wireless Audio Module
SA628F22 :16K Sampling Rate  Full Duplex Wireless Audio Module
SA628F22 :16K Sampling Rate  Full Duplex Wireless Audio Module

SA628F22 :16K Sampling Rate 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.

  • SA628F22Pro only adds a noise reduction module to the SA628F22; all other functions remain the same.

  • SA628F22/SA628F22Pro strictly uses lead -free process production and testing, which meets the standards of ROHS and Reach
ParametersConditionMin.Typ.Max.Unit
Power Supply 3.545.5V
Working temperature -302570
Current consumption
Sleep current  66 uA
RX CurrentSA618F22 53 mA
SA618F22Pro
76
@4V,8ohm,2W speaker 450 
TX current(High power)4.2v,@22dBm 130 mA
RF Parameters
Operating frequencyUHF420 510MHz
Customizable frequency 150 960MHz
Default frequency value for 16 channelsUHF ( 1MHz interval)440.125 455.125MHz
Transmit powerDefault:22dBm0 22dBm
Second Harmonic  -40 dBm
Bandwidth(BW)  500 KHz
Receiving sensitivity  -117 dBm
voice parameters
Modulation sensitivity  10100 mV
Receive signal-to-noise ratio(SNR)  90 dB
Frequency response 60 3800Hz
Voice output(line out)Load 16 Ω  40 mW
Voice output power(SPK+,SPK-)Load 8 Ω  2000 mW
Delay parameters2channels80100120 ms
3channels120160180ms
4channels160200240 ms
6channels240300360 ms
8channels320400480ms
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

 

Typical Schematic Circuit

 

图片.png

Pin No.Pin nameDescription
1VCCVCC(3.3-5.5V)
2,8,11,17GNDGround
3SDINExternalI2S(0-3.3V)
4BCLKExternalI2S(0-3.3V)
5WSExternalI2S(0-3.3V)
6VOL-ADJ50K variable resistoris recommended, See *5 above
7SDExternalI2S(0-3.3V)
9MCLKExternalI2S(0-3.3V)
10CS0: sleep, 1: working, Pull up internally.
12PTTPress to talk, 0: RX mode, 1: Tx mode.  Pull up internally
13MIC_NConnected with external microphone  See *3 above.  
14MIC_P
15SPK+Connect with 8 ohm 2W speaker  
16SPK-
18LINEOUTLine out , not amplified, can drive earphone and headphone
19ReservedNC
20LINEINLine in ,maximum 1VRMS
218the onboard 16 RF channel switch, eg. When the rotary switch changed to channel 11th, the output ( 8, 4, 2, 1 ) is:   1011:  channel 11th
224
232
241

图片.png


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