STA321TR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STA321TR

4-channel digital audio system with FFX™ driver

STMicroelectronics 

Pin description

2

Pin description

Figure 2. Pin out

SCL 1

VCC1 2

OUT1 3

GND1 4

GND2 5

OUT2 6

VCC2 7

VCC3 8

OUT3 9

GND3 10

NC

11

PWM00 12

NC

13

HPDET 14

GND33 15

VCC33 16

STA321

STA321

48

TM

47 VDDIO2

46 VDD_REG2

45 DGND2

44 I2CDIS

43 ACLK

42 EAPDN

41 EATSN

40 EAFTN

39 EAPWM1

38 EAPWM2

37 EAPWM3

36 EAPWM4

35 STBY

34 RSTN

33 INL1

Table 2.

Pin Pull

Pin list

Name

1-

3-

6-

9-

11 -

12 -

13 -

14 -

SCL

OUT1

OUT2

OUT3

NC

PWM00

NC

HPDET

Type

Description

In (digital), schmitt tr I2C serial clock, schmitt trigger input

Out (analog)

HP/line-out PWM 1

Out (analog)

HP/line-out PWM 2

Out (analog)

HP/line-out PWM 3

-

Not connected

Out (digital)

Auxiliary PWM

-

Not connected

In (analog)

Headphone detection

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Doc ID 15351 Rev 3

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