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Pin Assignments and Terminal Functions

1.2Pin Assignments and Terminal Functions

Figure 1-1and Figure 1-2show the pin assignments for the PCM3793A/94A. Table 1-1lists the terminal functions.

 

 

PCM3793ARHB

 

 

 

 

PCM3794ARHB

 

 

 

 

(TOP￿VIEW)

 

 

 

 

 

 

(TOP￿VIEW)

 

 

 

AIN2R

AIN3L

AIN3R

MICB

V

AGND

V

HPOL/LOL

AIN2R

AIN3L

AIN3R

MICB

V

AGND

V

HPOL/LOL

 

 

 

 

CC

 

COM

 

 

 

 

 

CC

 

COM

 

AIN2L

AIN1R

AIN1L

MODE

MS/ADR

MD/SDA

MC/SCL

LRCK

24

23

22

21

20

19

18

17

25

 

 

 

 

 

 

16

26

 

 

 

 

 

 

15

27

 

 

 

 

 

 

14

28

 

 

 

 

 

 

13

29

 

 

 

 

 

 

12

30

 

 

 

 

 

 

11

31

 

 

 

 

 

 

10

32

 

 

 

 

 

 

9

1

2

3

4

5

6

7

8

BCK

DIN

DOUT

V

V

DGND

SCKI

HDTI

 

 

 

IO

DD

 

 

 

HPOR/LOR

AIN2L

SPOLP

AIN1R

SPOLN

AIN1L

PGND

MODE

VPA

MS/ADR

SPORP

MD/SDA

SPORN

MC/SCL

HPCOM/MONO

LRCK

24

23

22

21

20

19

18

17

25

 

 

 

 

 

 

16

26

 

 

 

 

 

 

15

27

 

 

 

 

 

 

14

28

 

 

 

 

 

 

13

29

 

 

 

 

 

 

12

30

 

 

 

 

 

 

11

31

 

 

 

 

 

 

10

32

 

 

 

 

 

 

9

1

2

3

4

5

6

7

8

BCK

DIN

DOUT

V

V

DGND

SCKI

HDTI

 

 

 

IO

DD

 

 

 

HPOR/LOR

NC

NC

PGND

VPA

NC

NC

HPCOM/MONO

 

Figure 1-1. PCM3793A Pin Assignments

 

Figure 1-2. PCM3794A Pin Assignments

 

 

 

Table 1-1. PCM3793A/94A Terminal Functions

 

 

 

 

 

 

 

 

 

 

TERMINAL

 

 

 

 

 

NAME

 

PCM3793ARHB

 

PCM3794ARHB

 

I/O

DESCRIPTION

 

 

 

 

 

 

 

 

AGND

 

19

19

 

–

Ground for analog

AIN1L

 

27

27

 

I

Analog input 1 for L-channel

AIN1R

 

26

26

 

I

Analog input 1 for R-channel

AIN2L

 

25

25

 

I

Analog input 2 for L-channel

AIN2R

 

24

24

 

I

Analog input 2 for R-channel

AIN3L

 

23

23

 

I

Analog input 3 for L-channel

AIN3R

 

22

22

 

I

Analog input 3 for R-channel

BCK

 

1

1

 

I/O

Serial bit clock

DGND

 

6

6

 

–

Digital ground

DIN

 

2

2

 

I

Serial audio data input

DOUT

 

3

3

 

O

Serial audio data output

HDTI

 

8

8

 

I

Headphone plug insertion detection

HPCOM/MONO

9

9

 

O

Headphone common/mono line output

HPOL/LOL

17

17

 

O

Headphone/lineout for R-channel

HPOR/LOR

16

16

 

O

Headphone/lineout for L-channel

LRCK

 

32

32

 

I/O

Left and right channel clock

MC/SCL

31

31

 

I

Mode control clock for three-wire/two-wire interface

MD/SDA

30

30

 

I/O

Mode control data for three-wire/two-wire interface

MICB

 

21

21

 

O

Microphone bias source output

MODE

 

28

28

 

I

Two- or three-wire interface selection (low: SPI; high: I2C)

MS/ADR

29

29

 

I

Mode control select for three-wire/two-wire interface

PGND

 

13

13

 

–

Ground for speaker power amplifier

14

Description

 

 

 

 

 

SBAU127 –July 2007

 

 

 

 

 

 

 

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Texas Instruments DEM-DAI3793A manual Pin Assignments and Terminal Functions, PCM3793A/94A Terminal Functions
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DEM-DAI3793A specifications

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