CS42325 Datasheet, PDF (8/71 Pages) Cirrus Logic – 10-In, 6-Out, 2 Vrms Audio CODEC with Headphone

1. PIN DESCRIPTIONS
1.1 Software Mode
CS42325
SDA/CDOUT
SCL/CCLK
AD0/CS
AD1/CDIN
INT
FILT+
VCMADC
GND
VA
VBIAS
MUTEC1
MUTEC2
48 47 46 45 44 43 42 41 40 39 38 37
1
36
2
35
3
34
4
33
5
32
6
CS42325
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
OVFL
RST
AIN1A
AIN1B
AIN2A
AIN2B
AIN3A
AIN3B
AIN4A
AIN4B
AIN5A
AIN5B
Pin Name
SDA/CDOUT
SCL/CCLK
AD0/CS
AD1/CDIN
INT
FILT+
VCMADC
GND
VA
VBIAS
#
Pin Description
I²C Format SDA (Input/Output) - Acts as an input/output data pin. An external pull-up resistor is
1 required for I²C control port operation.
SPI Format CDOUT (Output) - Acts as an output only data pin.
I²C Format, SCL (Input) - Serial clock for the serial control port. An external pull-up resistor is
2 required for I²C control port operation.
SPI Format, CCLK (Input) - Serial clock for the serial control port.
3
I²C Format, AD0 (Input) - Forms the device address input AD[0].
SPI Format, CS (Input) - Acts as the active low chip select input.
4
I²C Format, AD1 (Input) - Forms the device address input AD[1].
SPI Format, CDIN (Input) - Becomes the input data pin.
5 Interrupt (Output) - Indicates an interrupt condition has occurred.
6 FILT+ (Output) - Full-scale reference voltage for ADC.
7
ADC Common-Mode Voltage (Output) - Filter connections for the ADC internal quiescent refer-
ence voltage.
8 Analog Ground (Input) - Analog ground reference.
9 Analog Power (Input) - Positive power for the internal analog section.
10 Bias Voltage (Output) - Positive reference voltage for the internal DAC.
8
DS838A2