Pin descriptions – Cirrus Logic CS5344 User Manual
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1. PIN DESCRIPTIONS
Pin Name Pin #
Pin Description
SDOUT
1
Serial Audio Data Output (Output) - Output for two’s complement serial audio data. Also selects Master
or Slave Mode; See
for details.
SCLK
2
Serial Clock (Input/Output) - Serial clock for the serial audio interface.
LRCK
3
Left Right Clock (Input/Output) - Determines which channel, Left or Right, is currently active on the
serial audio data line.
MCLK
4
Master Clock (Input) - Clock source for the delta-sigma modulator and digital filters.
FILT+
5
Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling circuits.
AINL
AINR
6
8
Analog Input (Input) - The full-scale analog input level is specified in the Analog Characteristics specifi-
cation table.
VQ
7
Quiescent Voltage (Output) - Filter connection for the internal quiescent reference voltage.
GND
9
Ground (Input) - Ground reference. Must be connected to analog ground.
VA
10
Power (Input) - Positive power supply for the digital and analog sections.
1
2
3
4
5
6
7
8
9
10
SDOUT
SCLK
LRCK
MCLK
FILT+
VA
GND
AINR
VQ
AINL