Texas Instruments manual 1. TAS3002 Terminal Functions Continued

Models: TAS3002

1 54
Download 54 pages 10.85 Kb
Page 7
Image 7

 

 

 

 

 

 

 

Table 1−1. TAS3002 Terminal Functions (Continued)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TERMINAL

 

I/O

 

 

 

DESCRIPTION

 

NAME

NO.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAP_PLL

10

I

Loop filter for internal phase-locked loop (PLL)

 

 

 

 

 

 

 

 

 

 

 

 

 

CLKSEL

11

I

Logic low selects 256 fS; logic high selects 512 fS MCLK

 

CS1

7

I

I2C address bit A0; low = 68h, high = 6Ah

 

DVDD

17

I

Digital power supply (3.3 V)

 

DVSS

18

I

Digital ground

 

GPI0

28

I

Switch input terminals

 

GPI1

29

 

 

 

 

 

 

 

GPI2

30

 

 

 

 

 

 

 

GPI3

31

 

 

 

 

 

 

 

GPI4

32

 

 

 

 

 

 

 

GPI5

33

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21

I

Digital audio I/O control (low = input; high = output)

 

IFM/S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

O

Low when analog input A is selected (will sink 4 mA)

 

INPA

 

 

 

 

 

 

 

 

 

 

 

 

 

LINA

1

I

Left channel analog input 1

 

 

 

 

 

 

 

 

 

 

 

LINB

48

I

Left channel analog input 2

 

 

 

 

 

 

 

 

 

LRCLK/O

19

I/O

Left/right clock input/output (output when

 

is high)

 

IFM/S

 

MCLKO

12

O

MCLK output for slave devices

 

 

 

 

 

 

 

 

 

NC

34

 

No connection; Can be used as a printed circuit board routing channel

 

 

 

 

 

 

 

 

 

NC

36

 

No connection; Can be used as a printed circuit board routing channel

 

 

 

 

 

 

 

 

 

PWR_DN

8

I

Logic high places the TAS3002 device in power-down mode

 

 

 

 

 

 

 

 

 

 

 

 

6

I

Logic low resets the TAS3002 device to the initial state

 

RESET

 

 

 

 

 

 

 

 

 

RINA

40

I

Right channel analog input 1

 

 

 

 

 

 

 

 

RINB

41

I

Right channel analog input 2

 

 

 

 

 

 

 

 

SCL

15

I/O

I2C clock connection

 

SCLK/O

20

I/O

Shift (bit) clock input (output when

 

is high)

 

IFM/S

 

SDA

16

I/O

I2C data connection

 

SDIN1

22

I

Serial data input 1

 

 

 

 

 

 

SDIN2

23

I

Serial data input 2

 

 

 

 

 

 

SDOUT0

25

O

Serial data output from ADC

 

 

 

 

 

 

SDOUT1

26

O

Serial data output (from internal audio processing)

 

 

 

 

 

 

SDOUT2

24

O

Serial data output (a monaural mix of left and right, before processing)

 

 

 

 

 

 

TEST

9

I

Reserved manufacturing test terminal; connect to DVSS

 

VCOM

38

O

Digital-to-analog converter mid-rail supply (decouple with parallel combination of 10-F and 0.1-F

 

 

 

 

 

 

 

capacitors)

 

 

 

 

 

 

VREFM

45

I

ADC minus voltage reference

 

VREFP

44

I

ADC plus voltage reference

 

VRFILT

2

O

Voltage reference low pass filter

 

XTALI/MCLK

13

I

Crystal or external MCLK input

 

 

 

 

 

 

XTALO

14

I

Crystal input (crystal is connected between terminals 13 and 14)

 

 

 

 

 

 

 

 

 

 

 

 

1−5

Page 7
Image 7
Texas Instruments manual 1. TAS3002 Terminal Functions Continued