STA328 Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

STA328

2.1-channel high-efficiency digital audio system

STMicroelectronics 

STA328

Table 2. Pin list

Number

Type

15

I/O

16

O

17

I/O

18

I/O

19

I/O

20

I/O

21

I

22

I

23

I

24

I/O

25

-

26

I

27

I

28

I/O

29

I/O

30

I

31

I/O

32

I

33

I/O

34

I/O

35

I/O

36

I/O

Name

VCC1A

OUT1A

GND_CLEAN

GND_REG

VDD_REG

VL

CONFIG

RESET

SCL

SDA

RESERVED

PLL_FILTER

XTI

GNDA

VDDA

SDI

LRCKI

BICKI

GND

VDD

VSS

VCC_SIGN

Pin out

Description

Positive supply

Output half bridge 1A

Logical ground

Substrate ground

Logic supply

Logic supply

Logic levels

Reset

I2C serial clock

I2C serial data

This pin must be connected to GND

Connection to PLL filter

PLL input clock

Analog ground

Analog supply, nominally 3.3 V

I2S serial data channels 1 & 2

I2S left/right clock,

I2S serial clock

Digital ground

Digital supply, nominally 3.3 V

5 V regulator referred to +VCC

5 V regulator referred to ground

2.3

Pin description

OUT1A, 1B, 2A and 2B (pins 16, 10, 9 and 3)

Output half bridge PWM outputs 1A, 1B, 2A and 2B provide the input signals to the

speakers.

RESET (pin 22)

Driving RESET low sets all outputs low and returns all register settings to their default

(reset) values. The reset is asynchronous to the internal clock.

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