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AK4528

High Performance 24Bit 96kHz Audio CODEC

Asahi Kasei Microdevices 

[AK4528]

DC CHARACTERISTICS

(Ta=25°C; VA, VD=4.75 ∼ 5.25V; VT=2.7 ∼ 5.25V)

Parameter

Symbol

min

typ

High-Level Input Voltage

VIH

2.2

-

Low-Level Input Voltage

VIL

-

-

High-Level Output Voltage (Iout=−100μA) (Note 11) VOH 2.7 / VT−0.5

-

Low-Level Output Voltage (Iout=100μA)

VOL

-

-

Input Leakage Current

Iin

-

-

Note: 11. The min value is lower voltage of 2.7V or VT−0.5V.

max Unit

-

V

0.8

V

-

V

0.5

V

±10

μA

SWITCHING CHARACTERISTICS

(Ta=25°C; VA, VD=4.75 ∼ 5.25V, VT=2.7 ∼ 5.25V; CL=20pF)

Parameter

Symbol

min

typ

Master Clock Timing

Frequency

fCLK

7.68

Pulse Width Low

tCLKL 0.4/fCLK

Pulse Width High

tCLKH 0.4/fCLK

LRCK Frequency

Normal Speed Mode (DFS = “0”)

fsn

30

44.1

Double Speed Mode (DFS = “1”)

fsd

60

88.2

Duty Cycle

Duty

45

Audio Interface Timing

BICK Period

tBCK

81

BICK Pulse Width Low

tBCKL

33

Pulse Width High

tBCKH

33

LRCK Edge to BICK “↑”

(Note 12) tLRB

20

BICK “↑” to LRCK Edge

(Note 12) tBLR

20

LRCK to SDTO (MSB) (Except I2S mode)

tLRS

BICK “↓” to SDTO

tBSD

SDTI Hold Time

tSDH

20

SDTI Setup Time

tSDS

20

Note 12. BICK rising edge must not occur at the same time as LRCK edge.

max

55.296

54

108

55

40

40

Unit

MHz

ns

ns

kHz

kHz

%

ns

ns

ns

ns

ns

ns

ns

ns

ns

MS0011-E-02

-8-

2012/01

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