SA316-RX datasheet(12/13 Pages) G-NICE

12 / 13 page

www.nicerf.com

SA316S

NiceRF Wireless Technology Co., Ltd.

Rev 1.8

- 12 -

sales@nicerf.com

Pin NO.

name

I/O

Level

standard

Description

VCC

+3.3V

Power positive input (2.8V-3.6V, typical 3.3V)

2，7，9,13,16,

19,21,23,25,27

GND

Connect to the negative pole of the power supply

TXD

0-3.3V

Serial data output

RXD

0-3.3V

Serial data input

SET

0-3.3V

Function temporarily reserved

0-3.3V

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

LED

0-3.3V

Output indication, output high after receiving signal,

low when no signal

GPIO4

I/0

0-3.3V

GPIO4 of the built-in audio chip

GPIO3

I/O

0-3.3V

The GPIO3 of the built-in audio chip can be configured

as MCLK when using I2S mode

GPIO2

I/O

0-3.3V

The GPIO2 of the built-in audio chip can be configured

as SDIO when using I2S mode

ANT

RF signal input, connect to 50 ohm antenna

GPIO1

I/O

0-3.3V

The GPIO1 of the built-in audio chip can be configured

as SCK when using I2S mode

GPIO0

I/O

0-3.3V

The GPIO0 of the built-in audio chip can be configured

as LRCK when using I2S mode

AOL+

Chip audio output negative terminal (up to 600mVrms)

AOR+

Chip audio output positive terminal (up to 600mVrms)

24 LOUL LOUT+

The amplified audio output is the left channel output,

which can directly drive headphones after connecting

100UF capacitors in series

ROUT+

The amplified audio output is the right channel output,

which can directly drive the headphones after

connecting a 100UF capacitor in series

VOL_ADJ

Volume adjustment pin, external 50K ohm adjustable

potentiometer

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