CS4382-KQZR CIRRUS [Cirrus Logic], CS4382-KQZR Datasheet - Page 25

• Manufacturer Part Number: CS4382-KQZR
• Description: 114 dB, 192 kHz 8-Channel D/A Converter
• Manufacturer: CIRRUS [Cirrus Logic]

DS514F2
5. PIN DESCRIPTION
VD
GND
MCLK
LRCK1
LRCK2
SDIN1
SDIN2
SDIN3
SDIN4
SCLK1
SCLK2
VLC
RST
FILT+
VQ
Pin Name
31
10
13
14
12
18
19
20
21
11
#
4
5
6
7
8
9
Digital Power (Input) - Positive power supply for the digital section. Refer to the Recommended Operat-
ing Conditions for appropriate voltages.
Ground (Input) - Ground reference. Should be connected to analog ground.
Master Clock (Input) - Clock source for the delta-sigma modulator and digital filters.
several standard audio sample rates and the required master clock frequency.
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 Rec-
ommended 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 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
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 sec-
tion.
LRCK1(DSD_EN)
DSDA1
DSDA2
DSDB1
LRCK2
SCLK2
SCLK1
SDIN2
MCLK
SDIN1
GND
VD
1
2
3
4
5
6
7
8
9
10
11
12
4 8 4 7 4 6 4 5 4 4 4 3 4 2 41 4 0 3 9 38 3 7
1 3 1 4 1 5 1 6 1 7 1 8 1 9 20 2 1 2 2 23 2 4
CS4382
Pin Description
36
31
35
34
33
32
30
29
28
27
26
25
AOUTA2-
AOUTA2+
AOUTB2-
AOUTA3-
AOUTA3+
AOUTB3+
AOUTB2+
VA
AOUTB3-
GND
AOUTA4-
AOUTA4+
Table 5
CS4382
illustrates
25