ASAHI KASEI

[AK5392]

0188-E-01

1997/11

- 3 -

PIN/FUNCTION

No.

Pin Name

I/O

Function

1

VREFL

O

Lch Reference Voltage Pin, 3.75V

Normally connected to GNDL with a 10uF electrolytic capacitor and

a 0.1uF ceramic capacitor

2

GNDL

-

Lch Reference Ground Pin, 0V

3

VCOML

O

Lch Common Voltage Pin, 2.5V

4

AINL+

I

Lch Analog positive input Pin

5

AINL-

I

Lch Analog negative input Pin

6

ZCAL

I

Zero Calibration Control Pin

This pin controls the calibration reference signal.

"L":VCOML and VCOMR

"H":Analog Input Pins(AINL±,AINR±)

7

VD

-

Digital Power Supply Pin, 3.3V

8

DGND

-

Digital Ground Pin, 0V

9

CAL

O

Calibration Active Signal Pin

"H" means the offset calibration cycle is in progress. Offset calibration starts

when

10

RST

I

Reset Pin

When "L", Digital section is powered-down. Upon returning "H", an

offset calibration cycle is started. An offset calibration cycle should always

be initiated after power-up.

11

12

SMODE2

SMODE1

I

I

Serial Interface Mode Select Pin

MSB first, 2's compliment.

SMODE2 SMODE1

MODE

LRCK

L

L

Slave mode : MSB justified

: H/L

L

H

Master mode : Similar to I2S

: H/L

H

L

Slave mode : I2S

: L/H

H

H

Master mode : I2S

: L/H

13

LRCK

I/O

Left/Right Channel Select Clock Pin

LRCK goes "H" at SMODE2="L" and "L" at SMODE2="H" during reset

when SMODE1 "H".