AK5556 datasheet(5/69 Pages) AKM

Part #	AK5556

Description	6-Channel Differential 32-bit ADC

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Manufacturer	AKM [Asahi Kasei Microsystems]

Direct Link	http://www.akm.com

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5 / 69 page

[AK5556]

015099857-E-00

2016/03

- 5 -

■ Pin Functions

No.

Pin Name

I/O

Function

Power Down

Status

1

AVSS1

-

Analog Ground Pin(AIN1-4)

-

2

AVDD1

-

Analog Power Supply Pin(AIN1-4), 4.5-5.5 V

-

3

AIN3P

I

Channel 3 Positive Input Pin

-

4

AIN3N

I

Channel 3 Negative Input Pin

-

5

VREFL2

I

ADC Low Level Voltage Reference Input Pin

-

6

VREFH2

I

ADC High Level Voltage Reference Input Pin

-

7

AIN4N

I

Channel 4 Negative Input Pin

-

8

AIN4P

I

Channel 4 Positive Input Pin

-

9

AIN5P

I

Channel 5 Positive Input Pin

-

10 AIN5N

I

Channel 5 Negative Input Pin

-

11 VREFH3

I

ADC High Level Voltage Reference Input Pin

-

12 VREFL3

I

ADC Low Level Voltage Reference Input Pin

-

13 AIN6N

I

Channel 6 Negative Input Pin

-

14 AIN6P

I

Channel 6 Positive Input Pin

-

15 AVDD2

-

Analog Power Supply Pin(AIN5-6), 4.5-5.5 V

-

16 AVSS2

-

Analog Ground Pin(AIN5-6)

-

17 TESTIN1

I

Test Input Pin1

-

18 TESTIN2

I

Test Input Pin2

-

19 TESTIN3

I

Test Input Pin3

-

20 TESTIN4

I

Test Input Pin4

-

21 TESTIN5

I

Test Input Pin5

-

22 TESTIN6

I

Test Input Pin6

-

23 TEST

I

TEST Enable Pin. This pin is pull down by 100k

Ω internally

-

24 MCLK

I

Master Clock Input Pin

-

25 TVDD

-

Digital I/O Buffers and LDO Power Supply Pin

1.7-1.98 V (LDOE pin=

“L”) or 3.0-3.6 V (LDOE pin= “H”).

-

26 DVSS

-

Digital Ground Pin

-

27 VDD18

I

Digital Core Power Supply Pin, 1.7-1.98 V (LDOE pin=

“L”)

-

O LDO Stabilization Capacitor Connect Pin. (LDOE pin=

“H”)

Hi-z & Pull

Down with

500

Ω

28 PDN

I

Reset & Power Down Pin

“L”: Reset & Power down, “H” : Normal operation

-

29 PW0

I

Power Management Pin, Channel Summation select Pin

-

30 PW1

I

Power Management Pin, Channel Summation select Pin

-

31 PW2

I

Power Management Pin, Channel Summation select Pin

-

32 MSN

I

Master/Slave Select Pin

“L”: Slave Mode, “H” : Master Mode

-

33

BICK

I

Audio Serial Data Clock Input Pin in PCM & Slave Mode.

This pin is pulled down by 100 k

Ω internally

-

O

Audio Serial Data Clock Output Pin in PCM & Master Mode

This pin is pulled down by 100 k

Ω internally

Hi-z

DCLK

O

DSD Clock Output Pin in DSD Mode

This pin is pulled down by 100 k

Ω internally

Hi-z

34

LRCK

I

Channel Clock Input Pin in PCM & Slave Mode

This pin is pulled down by 100 k

Ω internally

-

O

Channel Clock Output Pin in PCM & Master Mode

This pin is pulled down by 100 k

Ω internally

Hi-z

DSDOL1

O

Audio Serial Data Output Pin for AIN1 in DSD Mode

This pin is pulled down by 100 k

Ω internally

Hi-z

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