ASAHI KASEI

[AK4522]

M0020-E-02

2012/01

- 3 -

PIN/FUNCTION

No.

Pin Name

I/O

Function

1

VREFH

I

Positive Voltage Reference Input Pin, VA

Used as a positive voltage reference by ADC & DAC. VREFH should be connected

externally to filtered VA.

2

AINR+

I

Rch Analog Positive Input Pin

3

AINR-

I

Rch Analog Negative Input Pin

4

AINL+

I

Lch Analog Positive Input Pin

5

AINL-

I

Lch Analog Negative Input Pin

6

VA

-

Analog Power Supply Pin

7

AGND

-

Analog Ground Pin

8

DIF0

I

Audio Data Interface Format Pin

9

DIF1

I

Audio Data Interface Format Pin

10

LRCK

I

Input/Output Channel Clock Pin

11

SCLK

I

Audio Serial Data Clock Pin

12

SDTI

I

Audio Serial Data Input Pin

13

SDTO

O

Audio Serial Data Output Pin

14

SMUTE

I

Soft Mute Pin

When this pin goes “H”, soft mute cycle is initiated.

When returning “L”, the output mute releases.

15

DEM0

I

De-emphasis Frequency Select Pin

16

DEM1

I

De-emphasis Frequency Select Pin

17

MCKI

I

Master Clock Input/X’tal Input Pin

18

VD

-

Digital Power Supply Pin

19

DGND

-

Digital Ground Pin

20

PD

I

Reset Pin

21

CMODE

I

Master Clock Select Pin

(Internal Biased pin)

“H”: 384fs, “L”: 256fs, “NC”: 512fs

22

AOUTL

I

Lch Analog Output Pin

23

AOUTR

I

Rch Analog Output Pin

24

VCOM

O

Common Voltage Output Pin, VA/2

Note: All input pins except pull-down pins should not be left floating.