AK7780 Ver la hoja de datos (PDF) - Asahi Kasei Microdevices

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componentes Descripción

Fabricante

AK7780

24bit 5ch ADC & SRC + Audio DSP

Asahi Kasei Microdevices 

[AK7780]

No Pin Name I/O

Function

Classification

76

TESTO

O

TEST OUT pin

Hi-Z Output pin. Leave it open.

TEST

77

AINM

I ADCM single ended analog input

78

AINR4

I ADC1 or ADC2 Rch single ended analog input 4

79

AINL4

I ADC1 or ADC2 Lch single ended analog input 4

80

AINR3

I ADC1 or ADC2 Rch single ended analog input 3

Analog input

81

AINL3

I ADC1 or ADC2 Lch single ended analog input 3

82

AINR2

I ADC1 or ADC2 Rch single ended analog input 2

83

AINL2

I ADC1 or ADC2 Lch single ended analog input 2

84

AVDD

- Power supply pin for analog section 3.3V (typ)

Analog Power

Supply

Analog reference voltage input pin.

85 VREFH I Connect to AVDD, and connect 0.1μF and 10μF bypass capacitors between Analog input

this pin and AVSS.

Common voltage

86 VCOM O Connect to 0.1μF and 10μF capacitors between this pin and AVSS.

Do not connect to external circuitry.

Analog output

87

VREFL

I

Analog reference voltage input pin for low-level.

Connect to AVSS.

Analog input

88

AVSS

- Analog ground 0V

Analog Power

Supply

89

AINR–

I ADC1 or ADC2 Rch inverted input pin

90

AINR+

I ADC1 or ADC2 Rch non- inverted input pin

91

AINL–

I ADC1 or ADC2 Lch inverted input pin

92

AINL+

I ADC1 or ADC2 Lch non- inverted input pin

93

AINR5

I ADC1 or ADC2 Rch single ended analog input 5

94

AINL5

I ADC1 or ADC2 Lch single ended analog input 5

95

AINR6

I ADC1 or ADC2 Rch single ended analog input 6

Analog input

96

AINL6

I ADC1 or ADC2 Lch single ended analog input 6

97

AINR7

I ADC1 or ADC2 Rch single ended analog input 7

98

AINL7

I ADC1 or ADC2 Lch single ended analog input 7

99

AINR8

I ADC1 or ADC2 Rch single ended analog input 8

100 AINL8

I ADC1 or ADC2 Lch single ended analog input 8

Note 1. Digital input pins must not be allowed to float

Note 2. If analog input pins (AINR–, AINR+, AINL–, AINL+, AINL2-8, AINR2-8, AINM) are not used, leave them

open.

Note 3. I2CSEL should be set to “L” (DVSS) or “H” (DVDD).

Relationship with I2CSEL and SDA.

Normal

Microcontroller

Interface

I2C bus compatible

I2CSEL

L

L

H

H

INIT_RESET

L

H

L

H

SDA

L

L

“Hi-Z” → pull-up

function

MS0581-E-00-PB

- 10 -

2007/09

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