CS5346 datasheet(6/40 Pages) CIRRUS

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DS861PP1

CS5346

AIN1A

AIN1B

Stereo Analog Input 1 (Input) - The full-scale level is specified in the Analog Characteristics specifica-

tion table.

AGND

Analog Ground (Input) - Ground reference for the internal analog section.

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

AFILTA

Anti-alias Filter Connection (Output) - Antialias filter connection for the channel A ADC input.

AFILTB

Anti-alias Filter Connection (Output) - Antialias filter connection for the channel B ADC input.

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

FILT+

Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling circuits.

No Connect - This pin is not connected internally and should be tied to ground to minimize any poten-

tial coupling effects.

AIN4A/MICIN1

AIN4B/MICIN2

Stereo Analog Input 4 / Microphone Input 1 & 2 (Input) - The full-scale level is specified in the Ana-

log Characteristics specification table.

AIN5A

AIN5B

Stereo Analog Input 5 (Input) - The full-scale level is specified in the Analog Characteristics specifica-

tion table.

MICBIAS

Microphone Bias Supply (Output) - Low-noise bias supply for external microphone. Electrical charac-

teristics are specified in the DC Electrical Characteristics specification table.

AIN6A

AIN6B

Stereo Analog Input 6 (Input) - The full-scale level is specified in the Analog Characteristics specifica-

tion table.

PGAOUTA

PGAOUTB

PGA Analog Audio Output (Output) - Either an analog output from the PGA block or high impedance.

See “PGAOut Source Select (Bit 6)” on page 32.

No Connect - These pins are not connected internally and should be tied to ground to minimize any

potential coupling effects.

AGND

Analog Ground (Input) - Ground reference for the internal analog section.

No Connect - These pins are not connected internally and should be tied to ground to minimize any

potential coupling effects.

VLS

Serial Audio Interface Power (Input) - Determines the required signal level for the serial audio inter-

face. Refer to the Recommended Operating Conditions for appropriate voltages.

No Connect - These pins are not connected internally and should be tied to ground to minimize any

potential coupling effects.

SDOUT

Serial Audio Data Output (Output) - Output for two’s complement serial audio data.

SCLK

Serial Clock (Input/Output) - Serial clock for the serial audio interface.

LRCK

Left Right Clock (Input/Output) - Determines which channel, Left or Right, is currently active on the

serial audio data line.

MCLK

Master Clock (Input) - Clock source for the ADC’s delta-sigma modulators.

DGND

Digital Ground (Input) - Ground reference for the internal digital section.

Digital Power (Input) - Positive power for the internal digital section.

INT

Interrupt (Output) - Indicates an interrupt condition has occurred.

OVFL

Overflow (Output) - Indicates an ADC overflow condition is present.

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