PCM1741

4

SBAS175

BLOCK DIAGRAM

PIN ASSIGNMENTS

PIN

NAME

TYPE

FUNCTION

1

BCK

IN

2

DATA

IN

3

LRCK

IN

L-Channel and R-Channel Audio Data Latch En-

4

DGND

–

Digital Ground

–

Digital Power Supply, +3.3V

–

Analog Power Supply, +3.3V

OUT

Analog Output for L-Channel.

OUT

Analog Output for R-Channel.

9

AGND

–

Analog Ground

10

–

Common Voltage Decoupling.

11

ZEROR/

OUT

Zero Flag Output for R-Channel/Zero Flag Output

ZEROA

for L/R-Channel.

12

ZEROL/NA

OUT

Zero Flag Output for L-Channel/No Assign.

13

MD

IN

14

MC

IN

15

ML

IN

16

SCK

IN

System Clock Input.

NOTES: (1) Schmitt-trigger input, 5V tolerant. (2) Schmitt-trigger with internal

pull-down, 5V tolerant.

PIN CONFIGURATION

TOP VIEW

SSOP

Audio

Serial

Port

Output Amp and

Low-Pass Filter

DAC

8x

Oversampling

Digital Filter

with

Function

Controller

Enhanced

Multilevel

Delta-Sigma

Modulator

Output Amp and

Low-Pass Filter

DAC

BCK

LRCK

DATA

ML

MC

MD

Serial

Control

Port

System Clock

Manager

Zero Detect

Power Supply

V

V

COM

V

SCK

System Clock

BCK

DATA

LRCK

DGND

V

DD

V

CC

V

V

SCK

ML

MC

MD

ZEROL/NA

ZEROR/ZEROA

V

COM

AGND

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

PCM1741