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CS4365
1. PIN DESCRIPTION
48 47 46 45 44 43 42 41 40 39 38 37
DSDA2
DSDB1
DSDA1
VD
GND
1
2
3
4
5
36
35
34
33
32
AOUTA2-
AOUTA2+
AOUTB2+
AOUTB2-
VA
MCLK
LRCK
SDIN1
SCLK
M4(TST)
SDIN2
M3(TST)
6
7
8
9
10
11
12
CS4365
31
30
29
28
27
26
25
GND
AOUTA3-
AOUTA3+
AOUTB3+
AOUTB3-
MUTEC2
MUTEC3
13 14 15 16 17 18 19 20 21 22 23 24
VD
Pin Name
#
4
Pin Description
Digital Power ( Input ) - Positive power supply for the digital section. Refer to the Recom-
mended Operating Conditions for appropriate voltages.
GND
5, 31 Ground ( Input ) - Ground reference. Should be connected to analog ground.
Master Clock ( Input ) - Clock source for the delta-sigma modulator and digital filters. Tables 1
MCLK
LRCK
SDIN1
SDIN2
SDIN3
SCLK
TST
RST
VA
VLS
VLC
6
6
7
8
11
13
9
14
44
45
19
32
43
18
through 3 illustrate several standard audio sample rates and the required master clock fre-
quencies.
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 Data Input ( Input ) - Input for two’s complement serial audio data.
Serial Clock ( Input ) - Serial clocks for the serial audio interface.
Test - These pins need to be tied to analog ground.
Reset ( Input ) - The device enters a low power mode and all internal registers are reset to their
default settings when low.
Analog Power ( Input ) - Positive power supply for the analog section. Refer to the Recom-
mended Operating Conditions for appropriate voltages.
Serial Audio Interface Power ( Input ) - Determines the required signal level for the serial audio
interface. Refer to the Recommended Operating Conditions for appropriate voltages.
Control Port Power ( Input ) - Determines the required signal level for the control port and
Hardware Mode configuration pins. Refer to the Recommended Operating Conditions for
appropriate voltages.
DS670F2
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