Texas Instruments Essential Guide to DSD1796, PCM1795, PCM1796, and PCM1798 Audio Components

www.ti.com DEM-AS/CDAC Schematics

2.4DEM-AS/CDAC Schematics

Figure 2-10shows the schematic for the sections of the DEM-AS/CDAC.

C011

2700pF

R005

820

Vcc1

Vcc1

2

7

C013

10uF/16V

U002

6

NJM5534

3

8

(R003)

5

4

(NC)

(R001)

C008

C010

C014

Jumper

C012

MUTE

10uF

22pF

10uF/16V

C009

/16V

VDD

U001

(R004)

C015

2700pF

0.1uF

VDD

DSD1796

R006

820

GND

1

DSDL

VCC2L

28

C017

GND

2

27

DSDR

AGND3L

10uF

RESET

3

26

2

DBCK

IOUTL

7 /16V

MDO

4

25

PLRCK/WDCK

IOUTL+

U003

6

MDI

5

24

3

NJM5534

8

C018

PDATA/DFD/PDI AGND2

C007

MC

C002

6

23

C006

4

10uF/16V

PBCK

VCC1

0.1uF

5

ML

0.1uF

7

22

10uF

C016

C019

SCKI

VCOML

/16V

AGND

8

21 R002

22pF

2700pF

C005

D_SCLK

9 DGND

VCOMR 20

10k

10uF

R009

820

CLKO/D_BCK

10

VDD

IREF

19

/16V

P_SCLK

C001

11 MS

AGND1 18

C021

DSD_R

10uF/16V

12 MDI

IOUTR

17

2

10uF

P_BCK

13

MC

IOUTR+

16

U004

7 /16V

MDO

AGND3R

6

P_LRCK

14

15

3

NJM5534

8

RST

VCC2R

4

P_DATA

5

DSD_L

C022

(R007)

C020

C016

C003

22pF

10uF/16V

C004

Jumper

10uF

C023

2700pF

0.1uF

/16V

(R008)

R010

820

C025

2

10uF

7 /16V

U005

3

6

NJM5534

8

C026

4

5

10uF/16V

C024

22pF

Figure 2-10. DEM-AS/CDAC

VCC

VCC

GND

GND (NC) (NC)

(NC)

(NC)

VOUTL

VOUTL+ GND

GND

VOUTR

VOUTR+ (NC)

AVCC AVCC+ (NC)

GND

GND

SLEU057A–September 2004–Revised May 2009 Schematics, PCB Layout, and Bill of Materials 19

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