SA316S : High Fidelity Wireless Audio Module

Operating voltage range

@SA316S-TX,

SA316-RX　

2.8

3.3

3.6

V

@SA316F30

3.3

4.0

5.0

Range of working temperature

-20

25

60

℃

Operating frequency range

@UHF

500

540

MHz

800

890

MHz

890

980

MHz

@VHF

160

270

MHz

Audio transmission and reception delay

4

ms

Serial port baud rate

9600

bps

Current consumption

Sleep current(SA316-RX)

<0.4

mA

Sleep current

5

10

uA

mA

Receive current（SA316-RX)

@VCC=3.3V　

< 115

mA

Transmit Current（SA316S-TX）

@ During Transmission　

< 100

mA

@Not Transmitting

<54

mA

Transmit Current（SA316F30-TX）

@During Transmission,5v　

< 700

mA

@Not Transmitting,5v

<60

mA

Transmit parameter

Transmit power

@SA316S-TX,

VCC=3.3V

9

10

11

dBm

@SA316F30-TX,

VCC=5.0V

29

30

31

dBm

Emission bandwidth（BW)

300

KHz

Adjacent channel power ratio（ACPR）

@600KHZ

-60

dBc

Maximum microphone input voltage

0.1

1.0

Vrms

Audio frequency response range

30

20k

Hz

Receive parameters

Receiving sensitivity

-96

dBm

Audio output amplitude (differential)

400

mVrms

Audio output drive resistance

600

Ohm

Signal to Noise Ratio (SNR)

@1KHz

86

dB

Total harmonic distortion (THD)

@48KSampling Rate

0.07

%

1

TXD

O

0-3.3V

Serial Data Output

2

RXD

I

0-3.3V

Serial data input

3

SET

I

0-3.3V

Function temporarily reserved

4

CS

I

0-3.3V

Module sleep pin (low level work, high level sleep)

5

GPIO4

I/0

0-3.3V

GPIO4 of the built-in audio chip

6

GPIO3

I/O

0-3.3V

The GPIO3 of the built-in audio chip can be configured as SDIN when using I2S mode

7

ANT

0

RF signal output, connect to 50 ohm antenna

8.9,10,12

GND

0V

Connect to the negative pole of the power supply

11

VCC

+3.3-5.0V

Power positive input (+3.3V-5.0V, typical 4.2V)

13

TXLED

O

0-3.3V

Output indication: High when transmitting, low when not.

14

GPIO2

I/O

0-3.3V

Connect audio chip's GPIO2 to I2S mode as MCLK.

15

GPIO1

I/O

0-3.3V

Connect GPIO1 of audio chip to I2S mode as SCK.

16

MIC_N

I

Negative end of microphone input, connect to  GND

17

MIC_P

I

Positive end of microphone input, (the best signal is less than 200mVrms)

18

GPIO0

I/O

0-3.3V

The GPIO0 of the built-in audio chip can be configured as LRCK when using I2S mode