Cirrus-logic CS4340 Manuel d'utilisateur télécharger pdf (Page 11)

CS4340

DS297F3 11

SWITCHING SPECIFICATIONS - SERIAL AUDIO INTERFACE

Parameters Symbol Min Max Units

MCLK Frequency 1.024 25.6 MHz

MCLK Duty Cycle 45 55 %

Input Sample Rate Single-Speed Mode

Double-Speed Mode

Fs

Fs

4

50

50

100

kHz

kHz

LRCK Duty Cycle 40 60 %

SCLK Pulse Width Low t

sclkl

20 - ns

SCLK Pulse Width High t

sclkh

20 - ns

SCLK Frequency Single-Speed Mode

Double-Speed Mode

-

-

128xFs

64xFs

Hz

Hz

SCLK rising to LRCK edge delay t

slrd

20 - ns

SCLK rising to LRCK edge setup time t

slrs

20 - ns

SDIN valid to SCLK rising setup time t

sdlrs

20 - ns

SCLK rising to SDIN hold time t

sdh

20 - ns

sclkh

t

slrs

t

slrd

t

sdlrs

t

sdh

t

sclkl

t

SDATA

SCLK

LRCK

Figure 11. Serial Input Timing (External SCLK)

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 24 25

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