WM8770 datasheet(4/52 Pages) WOLFSON

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WM8770

Production Data

PD Rev 4.1 June 2005

PIN DESCRIPTION

NAME

TYPE

DESCRIPTION

AIN1L

Analogue Input

Channel 1 left input multiplexor virtual ground

AIN1R

Analogue Input

Channel 1 right input multiplexor virtual ground

AIN2L

Analogue Input

Channel 2 left input multiplexor virtual ground

AIN2R

Analogue Input

Channel 2 right input multiplexor virtual ground

AIN3L

Analogue Input

Channel 3 left input multiplexor virtual ground

AIN3R

Analogue Input

Channel 3 right input multiplexor virtual ground

AIN4L

Analogue Input

Channel 4 left input multiplexor virtual ground

AIN4R

Analogue Input

Channel 4 right input multiplexor virtual ground

AIN5L

Analogue Input

Channel 5 left input multiplexor virtual ground

AIN5R

Analogue Input

Channel 5 right input multiplexor virtual ground

AIN6L

Analogue Input

Channel 6 left input multiplexor virtual ground

AIN6R

Analogue Input

Channel 6 right input multiplexor virtual ground

AIN7L

Analogue Input

Channel 7 left input multiplexor virtual ground

AIN7R

Analogue Input

Channel 7 right input multiplexor virtual ground

AIN8L

Analogue Input

Channel 8 left input multiplexor virtual ground

AIN8R

Analogue Input

Channel 8 right input multiplexor virtual ground

AINOPL

Analogue Output

Left channel multiplexor output

AINVGL

Analogue Input

Left channel multiplexor virtual ground

AINVGR

Analogue Input

Right channel multiplexor virtual ground

AINOPR

Analogue Output

Right channel multiplexor output

RECL

Analogue Output

Left channel input mux select output

RECR

Analogue Output

Right channel input mux select output

REFADC

Analogue Output

ADC reference buffer decoupling pin; 10uF external decoupling

VMIDADC

Analogue Output

ADC midrail divider decoupling pin; 10uF external decoupling

AGND1

Supply

Analogue negative supply and substrate connection

AVDD1

Supply

Analogue positive supply

AUX1L

Analogue input

3.1 Multiplexor channel 1 left virtual ground input

AUX1R

Analogue input

3.1 Multiplexor channel 1 right virtual ground input

AUX2L

Analogue input

3.1 Multiplexor channel 2 left virtual ground input

AUX2R

Analogue input

3.1 Multiplexor channel 2 right virtual ground input

AUX3L

Analogue input

3.1 Multiplexor channel 3 left virtual ground input

AUX3R

Analogue input

3.1 Multiplexor channel 3 right virtual ground input

AVDD2

Supply

Analogue positive supply

VOUT1L

Analogue output

DAC channel 1 left output

VOUT1R

Analogue output

DAC channel 1 right output

DACREFP1

Supply

DAC positive reference supply

VOUT2L

Analogue output

DAC channel 2 left output

GR1

Supply

DAC ground reference

VOUT2R

Analogue output

DAC channel 2 right output

VMIDDAC

Analogue output

DAC midrail decoupling pin ; 10uF external decoupling

VOUT3L

Analogue output

DAC channel 3 left output

GR2

Supply

DAC ground reference

VOUT3R

Analogue output

DAC channel 3 right output

DACREFP2

Supply

DAC positive reference supply

VOUT4L

Analogue output

DAC channel 4 left output

VOUT4R

Analogue output

DAC channel 4 right output

AGND2

Supply

Analogue negative supply and substrate connection

DGND

Supply

Digital negative supply

DVDD

Supply

Digital positive supply

ZFLAG1

Digital output

DAC Zero Flag output

ZFLAG2

Digital output

DAC Zero Flag output

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