SA316S : High Fidelity Wireless Audio Module

SA316S : High Fidelity Wireless Audio Module

The SA316S series products are divided into transmitter modules SA316S-TX, SA316F30, and receiver module SA316S-RX. This series uses a wireless high-quality voice transmission chip for its design. It can support external PCM / IIS dual-mode digital audio interfaces, and provides customers with a standardized serial interface. Users can quickly and easily set the module's transceiver frequency, volume, microphone gain, and other parameters through serial port commands, which is widely used in situations that require high sound quality.

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Parameter	Test Conditions	Min.	Typ.	Max.	Unit
Operating voltage range	@SA316S-TX, SA316-RX	2.8	3.3	3.6	V
Operating voltage range	@SA316F30	3.3	4.0	5.0	V
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	SA316S-TX		5	10	uA
Sleep current	SA316F30		<1.6		mA
Receive current（SA316-RX)	@VCC=3.3V		< 115		mA
Transmit Current（SA316S-TX）	@ During Transmission		< 100		mA
Transmit Current（SA316S-TX）	@Not Transmitting		<54		mA
Transmit Current（SA316F30-TX）	@During Transmission,5v		< 700		mA
Transmit Current（SA316F30-TX）	@Not Transmitting,5v		<60		mA
Transmit parameter
Transmit power	@SA316S-TX, VCC=3.3V	9	10	11	dBm
Transmit power	@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		%

Type	Wireless audio
Output Power	10mW

Features of SA316 Wireless Audio Module

UHF frequency band：500MHz/868 MHz915MHz, UHF frequency band：450~980 MHz, VHF frequency band：160~270 MHz
The transmission distance is 200 meters in the open area
Receiving sensitivity: -96 dBm
Audio signal to noise ratio: 86 dB
Frequency response: 20 Hz-20 KHz
The delay from microphone input to audio output is less than 3ms
Digital modulation method: pi/4 DQPSK
Occupied bandwidth: <300 KHz
Transmission rate 204.8 Ksps
Sampling rate: 48 KHz

Applications of SA316 Wireless Audio Module

Wired speakers become wireless speakers
wireless microphone
Wireless Headphones
High-quality wireless audio transmission

Analog input and analog output application circuit

IIS input and output application circuit

SA316-TX

Pin NO.	Pin name	I/O	Level standard	Description
1	ANT	0		RF signal output, connect to 50 ohm antenna
2、6、7、10、12、17	GND		0V	Connect to the negative pole of the power supply
3	GPIO0	I/O	0-3.3V	The GPIO0 of the built-in audio chip can be configured as LRCK when using I2S mode
4	GPIO1	I/O	0-3.3V	The GPIO1 of the built-in audio chip can be configured as SCK when using I2S mode
5	GPIO2	I/O	0-3.3V	The GPIO2 of the built-in audio chip can be configured as MCLK when using I2S mode
8	MIC_N	I		Negative end of microphone input, can be left floating
9	MIC_P	I		Positive end of microphone input, (the best signal is less than 300mVrms)
11	VCC		+3.3V	Power positive input (2.8V-3.6V, typical 3.3V)
13	TXD	O	0-3.3V	Serial data output
14	RXD	I	0-3.3V	Serial data input
15	SET	I	0-3.3V	Function temporarily reserved
16	CS	I	0-3.3V	Module sleep pin (low level work, high level sleep)
18	LED	O	0-3.3V	Output indication, high output when transmitting signal, low output when not transmitting signal
19	GPIO4	I/0	0-3.3V	GPIO4 of the built-in audio chip
20	GPIO3	I/O	0-3.3V	The GPIO3 of the built-in audio chip can be configured as SDIN when using I2S mode

SA316-F30

Pin NO.	Pin name	I/O	Level standard	Description
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

SA316-RX

Pin NO.	Pin name	I/O	Level standard	Description
1	VCC		+3.3V	Power positive input (2.8V-3.6V, typical 3.3V)
2，7，9,13,16, 19,21,23,25,27	GND		0V	Connect to the negative pole of the power supply
3	TXD	O	0-3.3V	Serial data output
4	RXD	I	0-3.3V	Serial data input
5	SET	I	0-3.3V	Function temporarily reserved
6	CS	I	0-3.3V	Module sleep pin (low level work, high level sleep)
8	LED	O	0-3.3V	Output indication, output high after receiving signal, low when no signal
10	GPIO4	I/0	0-3.3V	GPIO4 of the built-in audio chip
11	GPIO3	I/O	0-3.3V	The GPIO3 of the built-in audio chip can be configured as MCLK when using I2S mode
12	GPIO2	I/O	0-3.3V	The GPIO2 of the built-in audio chip can be configured as SDIO when using I2S mode
15	ANT	I		RF signal input, connect to 50 ohm antenna
17	GPIO1	I/O	0-3.3V	The GPIO1 of the built-in audio chip can be configured as SCK when using I2S mode
18	GPIO0	I/O	0-3.3V	The GPIO0 of the built-in audio chip can be configured as LRCK when using I2S mode
20	AOL+	O		Chip audio output negative terminal (up to 600mVrms)
22	AOR+	0		Chip audio output positive terminal (up to 600mVrms)
24	LOUL LOUT+	O		The amplified audio output is the left channel output, which can directly drive headphones after connecting 100UF capacitors in series
26	ROUT+	O		The amplified audio output is the right channel output, which can directly drive the headphones after connecting a 100UF capacitor in series
28	VOL_ADJ	I		Volume adjustment pin, external 50K ohm adjustable potentiometer

SA316-TX

SA316-RX

SA316F30-TX

SA316S : High Fidelity Wireless Audio Module

Features of SA316 Wireless Audio Module

Applications of SA316 Wireless Audio Module

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