The SA618F30-DZ is based on our company's SA618F30 module, with a design that separates the transmission and reception antennas. Additionally, the TXEN pin is externally extended, making it more convenient for customers to add an external radio frequency power amplifier. This allows for higher transmission power and enhanced communication distance. The module integrates a high-speed microcontroller, high-performance RF transceiver chip, and RF power amplifier. It also provides a standard serial port for communication with the module, enabling easy and quick setting of relevant parameters and control of the transceiving functions. By simply connecting an audio amplifier, microphone, and speaker to this module, it can function as a compact walkie-talkie. The simplified interface and ultra-small size of the module allow for its wide application and easy integration into various handheld devices, thereby improving the overall performance of the end product.
The SA618F30-DZ is strictly manufactured and tested using lead-free processes, complying with RoHS and Reach standards.
Frequency Band 410~480MHz (customizable 150-960 MHz)
Up to 8 devices transmit simultaneously ( Receive unlimited)
Echo cancellation function
VOX function
Mesh Network
I2S Digital audio & analog audio
Line In + Mic - input
Full duplex data transmission
Support data transmission
Sleep low power consumption
Support OTA &Serial upgrade
3KM transmission distance in the open area
High Receiving sensitivity:-117 dBm
High integration and small size
Applications of SA618F30-DZ wireless audio module
High-end Full-duplex Walkie-talkie
Conference Telephone System
Headset Walkie-talkie
Security for Special Scenarios
Building and Residential Area Security Systems
Special Occupation Communication Walkie-talkie
nAnalog input analog output application circuit
n I2S input and output application circuit
Pin NO.
Pin name
I/O
Description
1
TXLED
O
Transmitting indicator, connected with external led, turn on by low level output when data or voice is transmitting, (suggest 1K ohm resistor for current limitation)
2
RESET
I
Module reset pin, externally pull down for more than 5ms will reset the module
3,6,10,
12,14,15,19
GND
Connect to power negative
4
MIC_N_IN
I
Negative electrode of external microphone, serial connected with 220 nH inductance, refer to below typical circuit.
5
MIC_P_IN
I
Positive electrode of external microphone, serial connected with 220 nH inductance, refer to below typical circuit.
7
AUX_IN
I
Line in & Microphone input
8
LINE_OUT
O
Connected with 16 Ω earphones
9
RESERVED
NC
10
TXEN
O
Transmit enable pin, outputs high level (3.3V) when transmitting, low level when receiving
11
RXANT
O
RF signal input for reception, connect to 50-ohm antenna
13
TXANT
O
RF signal output for transmission, connect to 50-ohm antenna
14
VCC
Power supply ( 3.3 – 5.5V )
16
SDIN
I
Connected with External I2S device, ( 0 – 3.3V )
17
BCLK
O
18
WS
O
20
SD
O
21
PTT
I
Press to talk, pull down to enter transmission mode, pull high or leave open to enter receive mode, pull-up internally,
22
TXD
O
Serial communication
23
RXD
I
Serial communication
24
MCLK
O
Connected with External I2S device (0-3.3V)
25
RXLED
O
Receiving indicator, connected with external led, turn on by low level output when data or voice received, (suggest 1K ohm resistor for current limitation)
This website uses cookies to provide you with a safer and more personal experience. By accepting, you agree to the Cookie Policy and the use of cookies for advertising and analytics purposes.