STA330 datasheet(7/55 Pages) STMICROELECTRONICS

7 / 55 page

STA330

Connection diagrams and pin descriptions

7/55

POWERFAULT/

EAPD

Digital output

Power fault signal (active high) /

External audio power-down signal

Digital input

Test mode (active high)

I2CDIS

Digital input

I2C disable pin (active high)

SCL

Digital input

I2C serial clock

SDA

Digital

input/output

I2C serial data

SELCLK33

Digital input

Master clock input selector:

SELCLK33 = 1 -> MCLK33 selected

SELCLK33 = 0 -> XTI selected

MCLK33

Digital input

Master clock input 3.3-V capable

XTI: crystal input or master clock input 3.3-V capable

XTI

Digital input

Crystal input or master clock input

XTO

Digital output

Crystal output

FILT

Analog

input/output

PLL loop filter terminal

GNDPLL

Ground

PLL analog ground

VDDPLL

Supply

PLL analog supply

GND2

Ground

Digital ground

VDD2

Supply

Digital supply

SDATAI

Digital input

Input serial audio interface data

SDATAO

Digital output

Output serial audio interface data

LRCLKI

Digital

input/output

Input serial audio interface L/R-clock

LRCLKO

Digital

input/output

Output serial audio interface L/R-clock

(volume UP when I2CDIS=1)

GNDIO2

Ground

I/O ring ground

VDDIO2

Supply

I/O ring supply

BICLKI

Digital

input/output

Input serial audio interface bit-clock

BICLKO

Digital

input/output

Output serial audio interface bit-clock

(volume DOWN when I2CDIS=1)

Ground

Exposed pad ground

Table 2.

Pin list (continued)

Pin #

Name

Type

Description

STA330 Datasheet(PDF) 7 Page - STMicroelectronics

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