Cirrus-logic CS4398 Manual de usuario descargar pdf (Pagina 12)

12 DS568F1

CS4398

SWITCHING CHARACTERISTICS

(Inputs: Logic 0 = GND, Logic 1 = VLS, CL = 20 pF)

Parameters Symbol Min Typ Max Units

Input Sample Rate Single-Speed Mode

Double-Speed Mode

Quad-Speed Mode

100

108

216

kHz

MCLK Frequency See Tables 1 & 2 (page 21) for compatible frequencies

MCLK Duty Cycle 40% - 60%

LRCK Duty Cycle 45% 50 55%

SCLK Pulse Width Low t

sclkl

20 - - ns

SCLK Pulse Width High t

sclkh

20 - - ns

SCLK Period Single-Speed Mode

sclkw

--ns

Double-Speed Mode

sclkw

--ns

Quad-Speed Mode

sclkw

--ns

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

22 - - ns

SCLK rising to SDATA hold time t

sdh

20 - - ns

sclkh

slrs

slrd

sdlrs

sdh

sclkl

SDATA

SCLK

LRCK

Figure 2. Serial Mode Input Timing

128()Fs

---------------------

64()Fs

------------------

MCLK

-----------------

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 45 46

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Cirrus-logic CS4398 Manual de usuario Pagina 12

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