CS4382A Cirrus Logic, CS4382A Datasheet - Page 6

• Manufacturer Part Number: CS4382A
• Description: 192 kHz 8-Channel D/A Converter
• Manufacturer: Cirrus Logic

6
1. PIN DESCRIPTION
VD
GND
MCLK
LRCK
SDIN1
SDIN2
SDIN3
SDIN4
SCLK
VLC
RST
FILT+
VQ
Pin Name
31
13
14
18
19
20
21
11
#
4
5
6
7
8
9
Digital Power (Input) - Positive power supply for the digital section.
Ground (Input) - Ground reference. Should be connected to analog ground.
Master Clock (Input) - Clock source for the delta-sigma modulator and digital filters.
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.
Serial Audio Data Input (Input) - Input for two’s complement serial audio data.
Serial Clock (Input) - Serial clock for the serial audio interface.
Control Port Power (Input) - Determines the required signal level for the control port.
Refer to the Recommended Operating Conditions for appropriate voltages.
Reset (Input) - The device enters a low power mode and all internal registers are reset to
their default settings when low.
Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling
circuits. Requires the capacitive decoupling to analog ground, as shown in the Typical Con-
nection 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 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.
LRCK(DSD_EN)
DSDA2
DSDB1
DSDA1
SDIN2
SDIN1
MCLK
SCLK
GND
TST
TST
VD
1
2
3
4
5
6
7
8
9
10
11
12
48 47 46 45 44 43 42 41 40 39 38 37
13 14 15 16 17 18 19 20 21 22 23 24
CS4382A
Pin Description
36
35
34
33
32
31
30
29
28
27
26
25
GND
AOUTA4+
AOUTA2-
AOUTA2+
AOUTB2+
AOUTB2-
VA
AOUTA3-
AOUTA3+
AOUTB3+
AOUTB3-
AOUTA4-
CS4382A
DS618PP1