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CS4340(AUDIO D/A) IC MATERIAL
DECAL
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RST
SDATA
SCLK/DEM1
LRCK
MCLK
DIF1
DIF0
DEM0
FILT+
VQ
FRF_GND
AOUTR
AGND
VA
AOUTL
MUTEC
PIN FUNCTION DESCRIPTION
Pin Name
#
Pin Description
RST
1 Reset(Input)-Powers down device.
SDATA 2 Serial Audio Data(Input)- Input for two's complement serial audio data.
SCLK 3 Serial Clock(Input)-Serial clock for the serial audio interface.
DEM1
DEM0
3
8
De-emphasis Control(Input)-Selects the standard 15us/50us digital
de-emphasis filter response for 44.1kHz sample rate.
LRCK
4 Left Right Clock(Input)- Determines which channel,Left or Right, is
currently active on the serial audio data line.
MCLK 5 Master Clock(Input)-Clock source for the delta-sigma modulator and
digital filters.
DIF1
DIF0
6
7
Digital Interface Format(Input)-Defines the required relationship
between the Left Right Clock, Serial Clock and Serial Audio Data.
FLT+ 9 Positive Voltage Reference(Output)-Positive voltage reference for the
internal sampling circuits.
VQ 10 Quiescent Voltage(Output)-Filter connection for internal quiescent
reference volgate.
REF_GND 11 Reference Ground(Input)-Ground reference for the internal sampling
circuits.
AOUTR
AOUTL
12
15
Analog Outputs(Output)-The full scale analog output level is specified in
the Analog Characteristics table.
AGND 13 Analog Ground(Input)
VA 14 Power(Input)-Positive power for the analog, digital and serial audio
interface sections.
MUTEC 16 Mute Control(Output)-Control signal for an optional mute circuit.
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