CS5368 datasheet(8/39 Pages) CIRRUS

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DS624A1

CS5368

Pin Name

Pin #

Pin Description

AIN2+AIN2-

AIN4+AIN4-

AIN3+AIN3-

AIN7+AIN7-

AIN8+AIN8-

AIN6+AIN6-

AIN5+AIN5-

AIN1+AIN1-

1,2,

11,12

13,14

15,16

17,18

43,44

45,46

47,48

Differential Analog (Inputs) - Audio signals are presented differently to the delta

sigma modulators via the AIN+/- pins.

GND

3,8

10,19

29,32

Ground (Input) Ground reference. Must be connected to analog ground.

4,9

Analog Power (Input) - Positive power supply for the analog section

Quiescent Voltage (Output) - Filter connection for the internal quiescent reference

voltage.

XTAL Power

VLS

Serial Audio Interface Power - Positive power for the serial audio interface.

Digital Power (Input)- Positive power supply for the digital section/

VLC

Control Port Interface Power - Positive power for the control port interface.

REF_GND

Reference Ground (Input) - For the internal sampling circuits.

FILT+

Positive Voltage Reference (Output) - Reference voltage for internal sampling cir-

cuits.

XTIXTO

Crystal Oscillator Connections (Input/Output) - I/O pins for an external crystal which

may be used to generate MCLK.

MCLK

System Master Clock (Input/Output) - When a crystal is used, this pin acts as a buff-

ered MCLK Source (Output). When the oscillator function is not used, this pin acts as

an input for the system master clock. In this case, the XTI and XTO pins must be tied

low.

LRCK/FS

Serial Audio Channel Clock (Input/Output)

In I²S mode Serial Audio Channel Select. When high, the odd channels are selected.

In LJ mode Serial Audio Channel Select. When low, the odd channels are selected.

In TDM Mode a frame sync signal. When high, it marks the beginning of a new frame of

serial audio samples. In Slave Mode, this pin acts as an input pin.

SCLK

Main timing clock for the Serial Audio Interface(Input/Output). During Master Mode,

this pin acts as an output, and during Slave Mode it acts as an input pin.

SDOUT4/TDMC

Serial Audio Data (Output) Channels 7,8.

SDOUT2/TDMC

Serial Audio Data (Output) Channels 3,4.

SDOUT1/TDM

Serial Audio Data (Output) Channels 1,2.

SDOUT3/TDM

Serial Audio Data (Output) Channels 5,6.

OVFL

Overflow (Output, open drain) - Detects an overflow condition on both left and right

channels.

RST

Reset (Input) - The device enters a low power mode when low.

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