CS4365
1. PIN DESCRIPTION
48 47 46 45 44 43 42 41 40 39 38 37
36
35
34
33
AOUTA2-
AOUTA2+
AOUTB2+
AOUTB2-
DSDA2
DSDB1
DSDA1
VD
1
2
3
4
GND
5
32
31
30
29
28
27
26
25
VA
6
GND
MCLK
LRCK
SDIN1
SCLK
CS4365
7
AOUTA3-
AOUTA3+
AOUTB3+
AOUTB3-
MUTEC2
MUTEC3
8
9
10
M4(TST)
SDIN2 11
M3(TST)
2
1
13 14 15 16 17 18 19 20 21 22 23 24
Pin Name
#
Pin Description
VD
4
Digital Power (Input) - Positive power supply for the digital section. Refer to the Rec-
ommended Operating Conditions for appropriate voltages.
GND
5
Ground (Input) - Ground reference. Should be connected to analog ground.
31
MCLK
LRCK
6
Master Clock (Input) - Clock source for the delta-sigma modulator and digital filters.
Table 5 illustrates several standard audio sample rates and the required master clock
frequencies.
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.
SDIN1
SDIN2
SDIN3
8
11
13
Serial Data Input (Input) - Input for two’s complement serial audio data.
SCLK
TST
9
Serial Clock (Input) - Serial clocks for the serial audio interface.
Test - These pins need to be tied to analog ground.
14
44
45
RST
VA
19 Reset (Input) - The device enters a low power mode and all internal registers are
reset to their default settings when low.
32 Analog Power (Input) - Positive power supply for the analog section. Refer to the
Recommended Operating Conditions for appropriate voltages.
VLS
43 Serial Audio Interface Power (Input) - Determines the required signal level for the
serial audio interface. Refer to the Recommended Operating Conditions for appropri-
ate voltages.
VLC
18 Control Port Power (Input) - Determines the required signal level for the control port
and hardware mode configuration pins. Refer to the Recommended Operating Condi-
tions for appropriate voltages.
6
DS670PP1
CIRRUS [ CIRRUS LOGIC ]
