[AK4388A]

MS1008-E-02

2010/09

- 6 -

DC CHARACTERISTICS

(Ta = 25

°C; VDD = 4.5 ∼ 5.5V)

Parameter

Symbol

min

typ

max

Units

High-Level Input Voltage

Low-Level Input Voltage

VIH

VIL

2.2

-

-

-

-

0.8

V

V

High-Level Output Voltage

(Iout = –80µA)

Low-Level Output Voltage

(Iout = 80µA)

VOH

VOL

VDD-0.4

-

-

-

0.4

V

V

Input Leakage Current (Note 10)

Iin

-

-

± 10

µA

Note 10. Except for the DIF1 and DEM pins. The DIF1 pin has internal pull-up resistor, the DEM pin has internal

pull-down resistor, nominally 100k

Ω. (typ. 100kΩ)

SWITCHING CHARACTERISTICS

(Ta = 25

Parameter

Symbol

min

typ

max

Units

Master Clock Frequency

Duty Cycle

fCLK

dCLK

2.048

40

11.2896

36.864

60

MHz

%

LRCK Frequency

Normal Speed Mode

Double Speed Mode

Quad Speed Mode

Duty Cycle

fsn

fsd

fsq

Duty

8

32

120

45

48

96

192

55

kHz

kHz

kHz

%

Audio Interface Timing

BICK Period

Normal Speed Mode

Double/Quad Speed Mode

BICK Pulse Width Low

Pulse Width High

BICK “

↑” to LRCK Edge

(Note 11)

LRCK Edge to BICK “

↑”

(Note 11)

SDTI Hold Time

SDTI Setup Time

tBCK

tBCK

tBCKL

tBCKH

tBLR

tLRB

tSDH

tSDS

1/128fs

1/64fs

30

30

20

20

20

20

ns

ns

ns

ns

ns

ns

ns

ns

Reset Timing

RSTN Pulse Width

(Note 12)

tRST

150

ns

Note 11. BICK rising edge must not occur at the same time as LRCK edge.

Note 12. The AK4388A can be reset by bringing RSTN pin = “L” → “H”.