AK4497 Datasheet, PDF(6/98 Page) Asahi Kasei Microsystems

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AK4497 Datasheet, PDF (6/98 Pages) Asahi Kasei Microsystems – Quality Oriented 32-Bit 2ch DAC

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â Pin Functions

[AK4497]

No. Pin Name I/O

Function

1 LDOE

I Internal LDO Enable Pin. âLâ: Disable, âHâ: Enable

2 PDN

Power-Down Mode Pin

I When at âLâ, the AK4497 is in power-down mode and is held in reset. The

AK4497 must always be reset upon power-up.

BICK

I Audio Serial Data Clock Pin in PCM Mode

3 BCK

I Audio Serial Data Clock Pin

DCLK

I DSD Clock Pin in DSD Mode (DSDPATH bit = â1â)

SDATA

I Audio Serial Data Input Pin in PCM Mode

4 DINL

I Lch Audio Serial Data Input Pin

DSDL

I DSD Lch Data Input Pin in DSD Mode(DSDPATH bit = â1â)

LRCK

I L/R Clock Pin in PCM Mode

5 DINR

DSDR

I Rch Audio Serial Data Input Pin

I DSD Rch Data Input Pin in DSD Mode(DSDPATH bit = â1â)

SSLOW

6 WCK

I Digital Filter Select Pin in Parallel Control Mode

I Word Clock input pin

7 TDMO

O Audio Serial Data Onput in Daisy Chain mode (Internal pull-down pin)

SMUTE

I When this pin is changed to âHâ, soft mute cycle is initiated.

When returning âLâ, the output mute releases.

CSN

I Chip Select Pin in Serial Control Mode

I Digital Filter Select Pin in Parallel Control Mode

9 CCLK

I Control Data Clock Pin in Serial Control Mode

SCL

I I2C=âHâ: Control Data Clock Input Pin

SLOW

I Digital Filter Select Pin in Parallel Control Mode

10 CDTI

I Control Data Input Pin in Serial Control Mode

SDA

I/O I2C=âHâ: Control Data Input Pin

DIF0

DZFL

I Digital Input Format 0 Pin in Parallel Control Mode

O Lch Zero Input Detect Pin in Serial Control Mode (Internal pull-down pin)

DIF1

DZFR

I Digital Input Format 1 Pin in Parallel Control Mode

O Rch Zero Input Detect Pin in Serial Control Mode (Internal pull-down pin)

DIF2

CAD0

I Digital Input Format 2 Pin in Parallel Control Mode

I Chip Address 0 Pin in Serial Control Mode

14 PSN

Parallel or Serial Select Pin

(Internal pull-up pin)

âLâ: Serial Control Mode, âHâ: Parallel Control Mode

HLOAD

I2C

I Heavy Load Mode Enable Pin in Parallel Control Mode.

Resister Control Interface Pin in Serial Control Mode.

DEM0

DSDL

I De-emphasis Enable 0 Pin in Parallel Control Mode

I DSD Lch Data Input Pin in DSD Mode (DSDPATH bit =â0â)

GAIN

DSDR

ACKS

CAD1

I Output Gain Control Pin in Parallel control mode (+2.5dB)

I DSD Rch Input Pin in DSD Mode (DSDPATH bit =â0â)

Auto Setting Mode Select Pin in Parallel control mode

âLâ: Manual Setting Mode, âHâ: Auto Setting Mode

I Chip Address 1 Pin in Serial Control Mode

Rev. 0.1

2015/11

-6-

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