AKD4524 datasheet(4/31 Pages) AKM

Part #	AKD4524

Description	24Bit 96kHz Audio CODEC

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Manufacturer	AKM [Asahi Kasei Microsystems]

Direct Link	http://www.akm.com

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ASAHI KASEI

[AK4524]

M0050-E-03

2004/01

- 4 -

PIN/FUNCTION

No.

Pin Name

I/O

Function

1

VCOM

O

Common Voltage Output Pin, VA/2

Bias voltage of ADC inputs and DAC outputs.

2

AINR

I

Rch Analog Input Pin

3

AINL

I

Lch Analog Input Pin

4

VREF

I

Voltage Reference Input Pin, VA

Used as a voltage reference by ADC & DAC. VREF is connected externally to

filtered VA.

5

AGND

-

Analog Ground Pin

6

VA

-

Analog Power Supply Pin, 4.75

∼ 5.25V

7

TEST

I

Test Pin

(Internal pull-down pin)

8

XTO

O

X’tal Output Pin

9

XTI

I

X’tal/Master Clock Input Pin

10

XTALE

I

X’tal Osc Enable Pin

“H”: Enable,

“L”: Disable

11

LRCK

I/O

Input/Output Channel Clock Pin

12

BICK

I/O

Audio Serial Data Clock Pin

13

SDTO

O

Audio Serial Data Output Pin

14

SDTI

I

Audio Serial Data Input Pin

15

CDTI

I

Control Data Input Pin

16

CCLK

I

Control Data Clock Pin

17

CS

I

Chip Select Pin

18

CIF

I

Control Data I/F Format Pin

“H”: CS falling trigger,

“L”: CS rising trigger

19

PD

I

Power-Down Mode Pin

“H”: Power up,

“L”: Power down, reset and initialize the control register.

20

M/ S

I

Master/Slave Mode Pin

“H”: Master mode,

“L”: Slave mode

21

CLKO

O

Master Clock Output Pin

22

VT

-

Output Buffer Power Supply Pin, 2.7

∼ 5.25V

23

VD

-

Digital Power Supply Pin, 4.75

∼ 5.25V

24

DGND

-

Digital Ground Pin

25

AOUTL

−

O

Lch Negative Analog Output Pin

26

AOUTL+

O

Lch Positive Analog Output Pin

27

AOUTR

−

O

Rch Negative Analog Output Pin

28

AOUTR+

O

Rch Positive Analog Output Pin

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

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