CS4397

12

DS333PP1

Notes: 10. Fs refers to the input sample rate to the Digital-to-Analog converter, i.e. Fs = 44.1 kHz × 8 = 352.8 kHz.

Parameter

Symbol

Min

Typ

Max

Unit

Input Sample Rate

(Note 10)

Fs

128

-

400

kHz

MCLK Frequency

(MCLK = 32×Fs)

(MCLK = 48×Fs)

(MCLK = 64×Fs)

(MCLK = 96×Fs)

4.096

6.144

8.192

12.288

-

-

-

-

12.8

19.2

25.6

28.4

MHz

MHz

MHz

MHz

MCLK Duty Cycle

40

-

50

%

WCKI Duty Cycle

25

-

75

%

BCKI Frequency

32xFs

MHz

BCKI rising to WCKI edge delay

20

-

-

ns

BCKI rising to WCKI edge setup time

20

-

-

ns

SDATA valid to BCKI rising setup time

20

-

-

ns

BCKI rising to DIL/DIR hold time

20

-

-

ns

sclkh

t

slrs

t

slrd

t

sdlrs

t

sdh

t

sclkl

t

DIL/DIR

BCKI

WCKI

Figure 3. Serial Audio Input Timing