WM8591GEDSSLASHRV datasheet(4/50 Pages) WOLFSON

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WM8591

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PP Rev 1.0 May 2005

PIN DESCRIPTION

NAME

TYPE

DESCRIPTION

Digital Input

Serial interface data

Digital Input

Serial interface clock

ZFLAGR

Digital Output

(open drain)

Right channel zero flag output (external pull-up required)

ZFLAGL

Digital Output

(open drain)

Left channel zero flag output (external pull-up required)

ADCLRC

Digital Input/Output

ADC left/right word clock

ADCBCLK

Digital Input/Output

ADC audio interface bit clock

ADCMCLK

Digital Input

Master ADC clock; 256, 384, 512 or 768fs (fs = word clock frequency)

DOUT

Digital Output

ADC data output

DACLRC

Digital Input/Output

DAC left/right word clock

DACBCLK

Digital Input/Output

DAC audio interface bit clock

DACMCLK

Digital Input

Master DAC clock; 256, 384, 512, 768fs or 1152fs (fs = word clock

frequency)

DIN

Digital Input

DAC data input

DVDD

Supply

Digital positive supply

DGND

Supply

Digital negative supply

VOUTRP

Analogue Output

DAC right channel positive output

VOUTRN

Analogue Output

DAC right channel negative output

VOUTLP

Analogue Output

DAC left channel positive output

VOUTLN

Analogue Output

DAC left channel negative output

AGND

Supply

Analogue negative supply and substrate connection

REFN

Analogue Input

Negative reference input

VMID

Analogue Output

Midrail divider decoupling pin; must be externally decoupled

REFP

Analogue Input

Positive reference input

AVDD

Supply

Analogue positive supply

No Connection

AINL

Analogue Input

Left channel input

No Connection

AINR

Analogue Input

Right channel input

Digital Input

2-wire address select

Notes:

Digital input pins have Schmitt trigger input buffers.

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