CS4340_05 Datasheet, PDF (14/25 Pages) Cirrus Logic – 24-Bit, 96 kHz Stereo DAC for Audio

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