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AK4366

Low Power 24-Bit 2ch DAC with HP-AMP

Asahi Kasei Microdevices 

ASAHI KASEI

AKM CONFIDENTIAL

[AK4366]

PIN/FUNCTION

No. Pin Name

1 MUTEN

CDTI

2 DEM

CCLK

3 DIF0

CSN

4 SDATA

5 LRCK

6 BICK

7 MCLK

8 PDN

9 P/S

10 VCOM

11 MUTET

12 VDD

13 VSS

14 HVDD

15 HPR

16 HPL

I/O

Function

I

Headphone Amp Mute Pin (P/S= “H”)

“H”: Normal operation, “L”: Mute

I Control Data Input Pin (P/S= “L”)

I

De-emphasis Pin (P/S= “H”)

“H”: ON(44.1kHz), “L”: OFF

I Control Data Clock Pin (P/S= “L”)

I

Audio Interface Format Pin (P/S= “H”)

“H”: I2S, “L”: 24bit MSB justified

I Control Data Chip Select Pin (P/S= “L”)

I Audio Serial Data Input Pin

I

L/R Clock Pin

This clock determines which audio channel is currently being input on SDATA pin.

I

Serial Bit Clock Pin

This clock is used to latch audio data.

I Master Clock Input Pin

Power-down & Reset Pin

I When at “L”, the AK4366 is in power-down mode and is held in reset.

The AK4366 should always be reset upon power-up.

I

Control Mode Select Pin (Internal Pull-down Pin)

“H”: Parallel, “L”: 3-wire Serial

Common Voltage Output Pin

O Normally connected to VSS pin with 0.1µF ceramic capacitor in parallel with a 2.2µF

electrolytic capacitor.

O

Mute Time Constant Control Pin

Connected to VSS pin with a capacitor for mute time constant.

- Power Supply Pin

- Ground Pin

- Power Supply Pin for Headphone Amp

O Rch Headphone Amp Output Pin

O Lch Headphone Amp Output Pin

Note: All digital input pins except internal pull-down pin must not be left floating.

REV 0.6

2003/3

-4-

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