SA326-RX datasheet(10/13 Pages) G-NICE

10 / 13 page

www.nicerf.com

SA326

NiceRF Wireless Technology Co., Ltd.

Rev 1.7

- 10

sales@nicerf.com



SA326F30-TX

Pin NO.

Pin name

I/O

Level

standard

Description

1,2,8,12，18

GND

Connect the negative pole of the power supply

0-3.3V

Frequency 16 channel 8421 encoding, the first digit, default "1"

output

0-3.3V

Frequency 16-channel 8421 encoding, the second bit, default "1"

output

0-3.3V

Frequency 16 channel 8421 encoding, the 4th bit, default "1"

output

0-3.3V

Frequency 16 channel 8421 encoding, the 8th bit, default "1"

output

GPIO4

I/0

0-3.3V

GPIO4 with internal audio chip

GPIO3

I/O

0-3.3V

Connect to GPIO3 of SA316F30-TX, it can be configured as

SDIN when using I2S mode

VCC

3.3-5V

The positive pole of the external power supply. (Typical value 4V)

0-5V

Internally connected to the EN of the LDO, pull down the

dormancy, internal pull-up, default "1" output

TX_DE

0-3.3V

The transmission indicator pin is high when transmitting and low

when not transmitting.

GPIO1

I/O

0-3.3V

Internally connected to GPIO1 of SA326F30-TX, when using I2S

mode, it can be configured as SCK

GPIO0

I/O

0-3.3V

Internally connected to GPIO0 of SA326F30-TX, when using I2S

mode, it can be configured as LRCK

GPIO2

I/O

0-3.3V



Internally connected to GPIO2 of SA326F30-TX

, when using I2S mode, it can be configured as MCLK

MIC_N

The negative input of the microphone, it can be connected to the

negative pole of the microphone or grounded.

MIC_P

Microphone input positive terminal, (the best signal is less than

300mVrms)

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