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CS4330-KS

8 Pin Stereo D/A Converter for Digital Audio

Cirrus Logic 

PIN DESCRIPTIONS

SERIAL DATA INPUT

DE-EMPHASIS / SCLK

LEFT / RIGHT CLOCK

MASTER CLOCK

CS4330, CS4331, CS4333

SDATA 1

DEM/SCLK 2

LRCK 3

MCLK 4

8 AOUTL

7 VA+

6 AGND

5 AOUTR

ANALOG LEFT CHANNEL OUTPUT

ANALOG POWER

ANALOG GROUND

ANALOG RIGHT CHANNEL OUTPUT

Power Supply Connections

VA+ - Positive Analog Power, PIN 7.

Positive analog supply. Nominally +5V or +3V.

AGND - Analog Ground, PIN 6.

Analog ground reference.

Analog Outputs

AOUTL - Analog Left Channel Output, PIN 8.

Analog output for the left channel. Typically 3.7 Vpp for a full-scale input signal at VA+ = 5V

and 1.85 Vpp at VA+ = 3V.

AOUTR - Analog Right Channel Output, PIN 5.

Analog output for the right channel. Typically 3.7 Vpp for a full-scale input signal at VA+ = 5V

and 1.85 Vpp at VA+ = 3V.

Digital Inputs

MCLK - Master Clock Input, PIN 4.

The frequency must be 256×, 384× , or 512× the input sample rate (Fs).

LRCK - Left/Right Clock, PIN 3.

This input determines which channel is currently being input on the Audio Serial Data Input

pin, SDATA.

SDATA - Audio Serial Data Input, PIN 1.

Two’s complement MSB-first serial data is input on this pin. The data is clocked into the

CS4330, CS4331, and CS4333 via internal or external SCLK and the channel is determined by

LRCK.

DEM/SCLK - De-emphasis / External serial clock input , PIN 2.

A dual-purpose input used for de-emphasis filter control or external serial clock input.

DS136F1

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