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SA628F22 410MHz-490MHz Full Duplex 22dBm 16K Sampling Rate Wireless Audio Module

DWM24062802

SA628F22 22dBm full duplex wireless voice module with mesh network. Easy setup, high-quality voice, LoRa technology, OTA upgrades, and eco-friendly production.

$85.00
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Description

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

Features

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

Character

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

PIN DEFINITION

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

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

Package Include

1x SA628F22 voice module

1x Antenna

1x Speaker

Useful Link:

Datasheet

User guide

Update Tool

Configure tool

Product Details
DWM24062802
300 Items
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SA628F22 410MHz-490MHz Full Duplex 22dBm 16K Sampling Rate Wireless Audio Module

SA628F22 22dBm full duplex wireless voice module with mesh network. Easy setup, high-quality voice, LoRa technology, OTA upgrades, and eco-friendly production.

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