AK7780 查看數據表（PDF） - Asahi Kasei Microdevices

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AK7780

24bit 5ch ADC & SRC + Audio DSP

Asahi Kasei Microdevices 

[AK7780]

No Pin Name I/O

Function

51

RDY

O Data write ready output pin for microcomputer interface.

Status output pin

52

STO

O

Normal state output “H”.

When WDT, CRC error or SRC UNLOCK occurs, then output “L”.

See 3.(1) Whole block diagram.

53

SDOUTA1

O

DSP or ADC Serial data output pin

* Compatible with MSB justified 24 bits / I2S.

54

SDOUT6

O

DSP or ADC Serial data output pin

* Compatible with MSB justified 24 bits / I2S.

Classification

Microcomputer

Interface.

Status

Digital section

Serial output data

55

CLKO2

O

Clock output pin 2

Select the output frequency through a control register.

Clock output

56

DVDD

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

57

DVSS

- Ground pin for digital section 0.0V

58 DVDD18 - Power supply pin for digital section 1.8V(typ)

Digital power

supply

59

JX2

I

External condition jump pin

* When not used, connect to DVSS

60

JX1

I

External condition jump pin

* When not used, connect to DVSS

61

JX0

I

External condition jump pin

* When not used, connect to DVSS

62

SDIN1

I

DSP/SRC Serial input pin

Input pin for SRC. When not used, connect to DVSS.

Conditional input

Digital section

Serial input data

63 SRC_BICK I SRC Serial bit clock input pin.

SRC

64 SRC_LRCK I SRC LR channel select clock input pin.

I I2CSEL= “L”

65

SDA

SDA Outputs “L” level.

I/O

I2CSEL= “H”

I2C bus interface

data

pin

66

P_SRCRST

I

SRC Reset pin

The control register R_SRCRST_N can also rest the SRC.

I2C

RESET

67 DVDD18 - Power supply pin for digital section 1.8V(typ)

68

DVSS

- Ground pin for digital section 0.0V

69

DVDD

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

Digital power

supply

70

BVSS

-

Silicon substrate potential 0V

Connect to AVSS.

Analog power

supply

71

P_SRC

SMUTE

SRC Soft mute pin

I The control register R_SRCSMUTE can also execute a soft mute on the SRC

SRC.

72

TESTI2

I

TEST pin ( Internal pull-down )

* Connect to DVSS.

TEST

73

AVDD

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

74

AVSS

- Analog ground 0V

Analog power

supply

75

SRC_LFLT

O

RC Filter connection pin for SRC.

See p.86 10-2-5-2: SRC PLL loop filter setting.

Analog output

MS0581-E-00-PB

-9-

2007/09

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