ANALOG PRODUCTS DIVISION

561 E. Elliot Road #175 Chandler, AZ 85225 Tel: (480) 539-2900. Fax: (480) 747-1715

www.protekanalog.com

PA5155

Low Power Stereo Audio CODEC

With Headphone Amplifier

95244 Rev.0. 01/10

NOT FOR USE IN LIFE SUPPORT SYSTEMS

28-PIN QFN AND PIN DESCRIPTIONS

PIN

NAME

I/O

DESCRIPTION

1

MCLK

I

Master clock

2

DVDD

Supply

Digital core supply

3

PVDD

Supply

Digital IO supply

4

DGND

Supply

Digital ground (return path for both DVDD and PVDD)

5

SCLK

I/O

Audio data bit clock

6

DSDIN

I

DAC audio data

7

DLRCK

I/O

DAC audio data left and right clock

8

GND

Supply

Ground or no connect

9

MOUT

O

Mono output

10

OUT3

O

Analog output 3 (can be used as headphone pseudo ground)

11

ROUT1

O

Right output 1 (line or speaker/headphone)

12

LOUT1

O

Left output 1 (line or speaker/headphone)

13

HPGND

Supply

Ground for analog output drivers (LOUT1/2, ROUT1/2)

14

ROUT2

O

Right output 2 (line or speaker/headphone)

15

LOUT2

O

Left output 2 (line or speaker/headphone)

16

HPVDD

Supply

Supply for analog output drivers (LOUT1/2, ROUT1/2)

17

AVDD

Supply

Analog supply

18

AGND

Supply

Analog ground

19

VREF

O

Decoupling capacitor

20

VMID

O

Decoupling capacitor

21

MONO-

I

Mono input (negative side)

22

MONO+

I

Mono input (positive side)

23

RIN

I

Right channel input

24

LIN

I

Left channel input

25

NU

Not used by chip (arbitrary connection)

26

CE

I

Control select or device address selection

27

CDATA

I/O

Control data input or output

28

CCLK

I

Control clock input

MONO-

VMID

VREF

AGND

AVDD

HPVDD

LOUT2

21

20

19

18

17

16

15

MCLK

DVDD

PVDD

DGND

SCLK

DSDIN

DLRCK

1

2

3

4

5

6

7