STA538 查看數據表（PDF） - STMicroelectronics

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产品描述 (功能)

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STA538

2 x 1.3 W class-D amplifier with analog or digital input 2.0 multichannel digital audio processor with FFX

STMicroelectronics 

Connection diagrams and pin descriptions

STA538

2.2.2

Pin description

Table 3.

Pin #

10

38

Package: VFQFPN52

Name

Type

RST_N

Digital input

XTI

Digital input

37

MCLK33 Digital input

36

SELCLK33 Digital input

39

XTO

Digital output

11

CLKOUT Digital output

34

SCL

Digital input

35

SDA

Digital

input/output

33

I2CDIS

Digital input

1

STBY

Digital input

14

MUTE

Digital input

51

BICLKI

Digital

input/output

47

LRCLKI

Digital

input/output

45

SDATAI

Digital input

52

BICLKO

Digital

input/output

48

LRCLKO

Digital

input/output

46

SDATAO Digital output

32

TM

Digital input

2

INL

Analog input

3

INR

Analog

input/output

4

VBIAS

Analog

input/output

9

VCM

Analog

input/output

5

AVDD

Supply

8

AGND

Ground

6

VHI

Analog input

Description

Reset (active low)

Crystal input or master clock input

Master clock input 3.3 V capable

XTI: crystal input or master clock input 3.3 V capable

Master clock input selector:

SELCLK33 = 1 -> MCLK33 selected

SELCLK33 = 0 -> XTI selected

Crystal output

Buffered clock output

I2C serial clock

I2C serial data

I2C disable pin (active high)

Standby (active high)

Mute (active high)

Input serial audio interface bit-clock

Input serial audio interface L/R-clock

Input serial audio interface data

Output serial audio interface bit-clock

(volume DOWN when I2CDIS=1)

Output serial audio interface L/R-clock

(volume UP when I2CDIS=1)

Output serial audio interface data

Test mode (active high)

ADC left channel line input or microphone input

ADC right channel line input

ADC microphone bias voltage

ADC Common mode voltage

ADC analog supply

ADC analog ground

ADC High reference voltage

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