CS8412 datasheet(29/38 Pages) CIRRUS

29 / 38 page

CS8411 CS8412

DS61F1

PIN DESCRIPTIONS: CS8412

Power Supply Connections

VD+ - Positive Digital Power, PIN 7.

Positive supply for the digital section. Nominally +5 volts.

VA+ - Positive Analog Power, PIN 22.

Positive supply for the analog section. Nominally +5 volts.

DGND - Digital Ground, PIN 8.

Ground for the digital section. DGND should be connected to same ground as AGND.

AGND - Analog Ground, PIN 21.

Ground for the analog section. AGND should be connected to same ground as DGND.

Audio Output Interface

SCK - Serial Clock, PIN 12.

Serial clock for SDATA pin which can be configured (via the M0, M1, M2, and M3 pins) as an

input or output, and can sample data on the rising or falling edge. As an output, SCK will

generate 32 clocks for every audio sample. As an input, 32 SCK periods per audio sample must

be provided in all normal modes.

821

VALIDITY + ERROR FLAG

CS e / FREQ REPORT 2

SERIAL OUTPUT DATA

ERROR FLAG

SERIAL PORT MODE SELECT 1

SERIAL PORT MODE SELECT 2

ANALOG POWER

ANALOG GROUND

DGND

VD+

C0/E0

Ca/E1

Cb/E2

Cc/F0

Cd/F1

FILTER

MASTER CLOCK

SERIAL PORT MODE SELECT 2

SERIAL PORT MODE SELECT 3

SCK

FSYNC

RXN

RXP

FREQ/CS SELECT

CS BLOCK START

CS12/FCK

VERF

Ce/F2

SDATA

ERF

VA+

AGND

FILT

MCK

SEL

CBL

DIGITAL GROUND

DIGITAL POWER

CS 0 / ERROR CONDITION 0

CS a / ERROR CONDITION 1

CS b / ERROR CONDITION 2

CS c / FREQ REPORT 0

CS d / FREQ REPORT 1

CHANNEL STATUS OUTPUT

SERIAL DATA CLOCK

FRAME SYNC

RECEIVE NEGATIVE

RECEIVE POSITIVE

USER DATA OUTPUT

CHANNEL SELECT / FCLOCK

CS8412

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