AK4522 Просмотр технического описания (PDF) - Asahi Kasei Microdevices

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AK4522

20Bit Stereo ∆Σ ADC & DAC

Asahi Kasei Microdevices 

ASAHI KASEI

[AK4522]

SYSTEM DESIGN

Figure 7 shows the system connection diagram. This is an example which analog signal is input by single ended circuit.

In case of differential input, please refer to Figure 10. An evaluation board is available which demonstrates application

circuits, the optimum layout, power supply arrangements and measurement results.

4.5 ∼ 5.5V

Analog Supply

10u +

470

470

Format

Setting

Audio

Controller

0.1u

1 VREFH

2.2n

+

2

0.1u

3

4.7u

2.2n

4

0.1u

+

5

4.7u

6

0.1u

7

AINR+

AINR-

AINL+

AINL-

VA

AGND

8 DIF0

9 DIF1

10 LRCK

11 SCLK

12 SDTI

VCOM 24

AOUTR 23

AOUTL 22

CMODE 21

PD 20

AK4522 DGND 19

VD 18

MCKI 17

DEM1 16

DEM0 15

SMUTE 14

SDTO 13

0.1u

+10u

2.7 ∼ 5.5V

Digital Supply

0.1u

+

10u

5

Mode

Setting

Figure 7. Typical Connection Diagram

Notes:

- When AOUT drives some capacitive load, some resistor should be added in series between AOUT and

capacitive load.

- All input pins except CMODE pin should not be left floating.

M0020-E-01

- 13 -

1998/10

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