AK4132 datasheet(4/27 Pages) AKM

No. de pieza	AK4132

Descripción Electrónicos	96kHz 24bit Sample Rate Converter

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Fabricante Electrónico	AKM [Asahi Kasei Microsystems]

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[AK4132]

015015036-E-03

2018/05

- 4 -

■ Pin Functions

No.

Name

I/O

Function

PDN=

“L”

Status

1

ODIF

I

Audio Interface Format Select Pin for Output PORT

-

2

IDIF

I

Audio Interface Format Select Pin for Input PORT

-

3

CM

I

Output Port Mode Select Pin

“H”: Slave Mode

“L”: Master Mode

-

4

TEST

I

Test pin.

Must be connected to DVSS in normal use. It has a pull-down

resister 100k

.

-

5

ILRCK

I

Channel Clock Input Pin for Input PORT

-

6

IBICK

I

Audio Serial Clock Input Pin for Input PORT

-

7

SDTI

I

Audio Serial Data Input Pin for Input PORT

-

8

OMCLK

I

External Master Clock Input

-

9

OLRCK

O

Channel Clock Output Pin for Output PORT in Master Mode

“L”

I

Channel Clock Input Pin for Output PORT in Slave Mode

-

10

OBICK

O

Audio Serial Clock Output Pin for Output PORT in Master Mode

“L”

I

Audio Serial Clock Input Pin for Output PORT in Slave Mode

-

11

SDTO

O

Audio Serial Data Output Pin for Output PORT

“L”

12

VD18

I

Internal Digital Power Supply Pin, 1.7

 1.9V (VSEL= “H”)

-

O

Regulator Output Pin, Typ. 1.8V (VSEL=

“L”)

Current must not be taken from this pin. A 10μF (±30%; including

the temperature characteristics) capacitor should be connected

between this pin and DVSS. When this capacitor is polarized, the

positive polarity pin should be connected to the VD18 pin.

“L”

13

DVSS

-

Digital Ground Pin

-

14

DVDD

-

Digital Power Supply Pin, 3.0

 3.6V or 1.7  1.9V

-

15

VSEL

I

Internal Digital Power Supply Select Pin

“H”: External Power Supply

“L”: Internal Regulator

-

16

PDN

I

Power-Down Mode Pin

“H”: Power Up

“L”: Power Down and Reset

The AK4132

should be reset once by bringing PDN pin = “L”

upon power-up.

-

Note 1. All input pins should not be allowed to float.

Note 2. CM, ODIF and IDIF must be changed when the PDN pin =

“L”.

■ Handling of Unused Pin

Classification

Pin Name

Setting

Digital

OMCLK

Connect to DVSS

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