CS4330 CIRRUS [Cirrus Logic], CS4330 Datasheet - Page 19

• Manufacturer Part Number: CS4330
• Description: 8 Pin Stereo D/A Converter for Digital Audio
• Manufacturer: CIRRUS [Cirrus Logic]

PIN DESCRIPTIONS
Power Supply Connections
VA+ - Positive Analog Power, PIN 7.
AGND - Analog Ground, PIN 6.
Analog Outputs
AOUTL - Analog Left Channel Output, PIN 8.
AOUTR - Analog Right Channel Output, PIN 5.
Digital Inputs
MCLK - Master Clock Input, PIN 4.
LRCK - Left/Right Clock, PIN 3.
SDATA - Audio Serial Data Input, PIN 1.
DEM/SCLK - De-emphasis / External serial clock input , PIN 2.
DS136F1
DE-EMPHASIS / SCLK
LEFT / RIGHT CLOCK
SERIAL DATA INPUT
Positive analog supply. Nominally +5V or +3V.
Analog ground reference.
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.
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.
The frequency must be 256 , 384 , or 512 the input sample rate (Fs).
This input determines which channel is currently being input on the Audio Serial Data Input
pin, SDATA.
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.
A dual-purpose input used for de-emphasis filter control or external serial clock input.
MASTER CLOCK
DEM/SCLK
SDATA
MCLK
LRCK
1
2
3
4
8
7
6
5
AOUTL
VA+
AGND
AOUTR
ANALOG LEFT CHANNEL OUTPUT
ANALOG POWER
ANALOG GROUND
ANALOG RIGHT CHANNEL OUTPUT
CS4330, CS4331, CS4333
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