Owner's manual

CS4340A
4 DS590F2
1. PIN DESCRIPTION
Pin Name # Pin Description
RST
1
Reset (Input) - Powers down device.
SDIN
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.
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.
DEM
8
De-emphasis Control (Input) - Selects the standard 15µs/50µs digital de-emphasis filter
response for the 44.1 kHz sample rate.
FILT+
9
Positive Voltage Reference (Output) - Positive voltage reference for the internal
sampling circuits.
VQ
10
Quiescent Voltage (Output) - Filter connection for internal quiescent reference voltage.
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.
152
143
134
161
116
107
98
125
RST MUTEC
SDIN AOUTL
SCLK VA
LRCK AGND
MCLK AOUTR
DIF1 REF_GND
DIF0 VQ
DEM FILT+