Cirrus-logic CS4392 Manuel d'utilisateur télécharger pdf (Page 32)

CS4392

32 DS459PP3

SWITCHING CHARACTERISTICS - SERIAL AUDIO INTERFACE

(Inputs: Logic 0 = 0 V, Logic 1 = VL) .

Parameters Symbol Min Typ Max Units

Input Sample Rate Fs 4 - 200 kHz

LRCK Duty Cycle 45 50 55 %

MCLK Duty Cycle 40 50 60 %

SCLK Frequency Single Speed Mode

Double Speed Mode

Quad Speed Mode (MCLKDIV=0)

Quad Speed Mode (MCLKDIV=1)

-

-

-

-

-

-

-

-

128•LRCK

64•LRCK

MCLK/2

MCLK/4

Hz

Hz

Hz

Hz

SCLK rising to LRCK edge delay t

slrd

20 - - ns

SCLK rising to LRCK edge setup time t

slrs

20 - - ns

SDATA valid to SCLK rising setup time t

sdlrs

20 - - ns

SCLK rising to SDATA hold time t

sdh

20 - - ns

slrs

t

slrd

t

sdlrs

t

sdh

t

SDATA

SCLK

LRCK

Figure 36. Serial Mode Input Timing

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 38 39 40

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