M4334

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

2 of 9

www.unisonic.com.tw

QW-R502-441A

PIN CONFIGURATIONS

PIN DESCRIPTION

PIN NO

PIN NAME

PIN TYPE

PIN DESCRIPTION

1

SDATA

I

Serial audio data input: two’s complement MSB-first serial data is input on

this pin. The data is clocked into the M4334 via internal or external SCLK,

and the channel is determined by LRCK.

2

DEM/SCLK

I

De-emphasis control and clock input for audio data: used for de-emphasis

filter control or external serial clock input.

3

LRCK

I

Sample rata clock input: determines which channel is currently being input

on the audio serial data input pin.

4

MCLK

I

System clock input: frequency must be 256x, 384x, or 512x the input

sample rate in BRM and either 128x or 192x the input sample rate in HRM.

5

AOUTR

O

Right-channel analog output

6

AGND

I

Ground pin

7

VA

I

Power supply pin for the internal control circuits

8

AOUTL

O

Left-channel analog output