CS4382A_09 Datasheet, PDF (6/50 Pages) Cirrus Logic – 114 dB, 192 kHz 8-Channel D/A Converter

1. PIN DESCRIPTION
48 47 46 45 44 43 42 41 40 39 38 37
DSDA2
DSDB1
DSDA1
VD
GND
MCLK
LRCK(DSD_EN)
SDIN1
SCLK
TST
SDIN2
TST
1
36
2
35
3
34
4
33
5
32
6
CS4382A
31
7
30
8
29
9
28
10
27
11
26
12
25
13 14 15 16 17 18 19 20 21 22 23 24
AOUTA2-
AOUTA2+
AOUTB2+
AOUTB2-
VA
GND
AOUTA3-
AOUTA3+
AOUTB3+
AOUTB3-
AOUTA4-
AOUTA4+
CS4382A
Pin Name
VD
GND
MCLK
LRCK
SDIN1
SDIN2
SDIN3
SDIN4
SCLK
VLC
RST
FILT+
VQ
MUTEC1
MUTEC234
#
Pin Description
4 Digital Power (Input) - Positive power supply for the digital section.
5
31
Ground (Input) - Ground reference. Should be connected to analog ground.
6 Master Clock (Input) - Clock source for the delta-sigma modulator and digital filters.
7
Left Right Clock (Input) - Determines which channel, Left or Right, is currently active on the serial
audio data line. The frequency of the left/right clock must be at the audio sample rate, Fs.
8
11
13
Serial Audio Data Input (Input) - Input for two’s complement serial audio data.
14
9 Serial Clock (Input) - Serial clock for the serial audio interface.
18
Control Port Power (Input) - Determines the required signal level for the Control Port. Refer to the
Recommended Operating Conditions for appropriate voltages.
19
Reset (Input) - The device enters a low power mode and all internal registers are reset to their default
settings when low.
20
Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling circuits.
Requires the capacitive decoupling to analog ground, as shown in the Typical Connection Diagram.
Quiescent Voltage (Output) - Filter connection for internal quiescent voltage. VQ must be capacitively
coupled to analog ground, as shown in the Typical Connection Diagram. The nominal voltage level is
21
specified in the Analog Characteristics and Specifications section. VQ presents an appreciable source
impedance and any current drawn from this pin will alter device performance. However, VQ can be
used to bias the analog circuitry assuming there is no AC signal component and the DC current is less
than the maximum specified in the Analog Characteristics and Specifications section.
Mute Control (Output) - These pins are intended to be used as a control for external mute circuits to
41 prevent the clicks and pops that can occur in any single supply system. The use of external mute cir-
22 cuits are not mandatory but may be desired for designs requiring the absolute minimum in extraneous
clicks and pops.
6
DS618F2