DSD1791 datasheet(6/53 Pages) TI

Part #	DSD1791

Description	24 BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER

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Manufacturer	TI [Texas Instruments]

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DSD1791

SLES072A − MARCH 2003 − REVISED JANUARY 2004

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6

Terminal Functions

TERMINAL

I/O

DESCRIPTIONS

NAME

I/O

DESCRIPTIONS

AGNDC

16

−

Analog ground (internal bias and current DAC)

AGNDF

9

−

Analog ground (DACFF)

AGNDL

19

−

Analog ground (L-channel I/V)

AGNDR

11

−

Analog ground (R-channel I/V)

DBCK

4

I

Bit clock input for DSD mode (1)

DGND

8

−

Digital ground

DSDL

25

I

L-channel audio data input for DSD mode (1)

DSDR

24

I

R-channel audio data input for DSD mode (1)

MC

27

I

Mode control clock input (1)

MDI

26

I/O

Mode control data input (2)

MS

28

I/O

Mode control chip select input (2)

PBCK

2

I

Bit clock input for PCM mode (1)

PDATA

3

I

Serial audio data input for PCM mode (1)

PLRCK

1

I

Left and right clock (fS) input for PCM mode (1)

RST

6

I

Reset (1)

SCK

5

I

System clock input (1)

VCCC

15

−

Analog power supply (internal bias and current DAC), 5 V

VCCF

21

−

Analog power supply (DACFF), 5 V

VCCL

20

−

Analog power supply (L-channel I/V), 5 V

VCCR

10

−

Analog power supply (R-channel I/V), 5 V

VCOM

14

−

Internal bias decoupling pin

VDD

7

−

Digital power supply, 3.3 V

VOUTL+

17

O

L-channel analog voltage output +

VOUTL–

18

O

L-channel analog voltage output –

VOUTR+

13

O

R-channel analog voltage output +

VOUTR–

12

O

R-channel analog voltage output –

ZEROL

23

O

Zero flag for L-channel

ZEROR

22

O

Zero flag for R-channel

(1) Schmitt-trigger input, 5-V tolerant

(2) Schmitt-trigger input and output. 5-V tolerant input and CMOS output.

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