Cirrus-logic AN234 Manual de usuario descargar pdf (Pagina 2)

AN234

2

2. Typical Connection Diagrams

Figure 1. CS5381 Typical Connection Diagram

Figure 2. AK5394A Typical Connection Diagram

FILT+

AINL+

AINL-

V

D

0.1

µ

F

A/D CONVERTER

SCLK

CS5381

M/S

MCLK

AINR+

AINR-

VQ

200µ

F

+

RST

VA V

L

+5V

1

µ

F

+5V to 2.5V

5.1

Ω

1

µ

F

+

+

+

SDOUT

GND

I

2

S/LJ

LRCK

GND

Power Down

and Mode

Settings

Audio Data

Processor

Timing Logic

and Clock

0.1

µ

F

0.1

µ

F

0.1

µF

0.1

µ

F

HPF

M0

M1

REFGND

MDIV

+5 V to 3.3 V

1

µ

F 0.1

µ

F

1

µ

F

+

Analog

Input

Buffer

(Section 8)

Analog

Input

Buffer

(Section 8)

OVFL

10 k

VL

*

*

Resistor may only

be used if VD is

derived from VA. If

used, do not drive

any other logic

from VD.

VREFL+

AINL+

AINL-

V

A/D CONVERTER

AK5394A

AINR+

AINR-

VCOML

RST

VA

D

+5V

10

µ

F

+5V to 3.3

V

10

µ

F

+ +

SDATA

CAL

Reset and

Calibration

Control

Audio Data

Processor

Timing Logic

and Clock

SMODE2

SMODE1

VREFL-

DFS0

Analog

Input

Buffer

(Section 8)

Analog

Input

Buffer

(Section 8)

ZCAL

0.1

AGND

DGND

BGND

µF 0.1

µF

VREFR+

VREFR-

HPFE

Mode

Control

LRCK

FSYNC

SCLK

MCLK

0.22µF

+

+

C

C

0.22µF

0.22µF

+

+

C

C

0.22µF

VCO MR

DFS1

*

*

*

*

* See Section 9

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