CS43L21-DNZ Просмотр технического описания (PDF) - Cirrus Logic

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CS43L21-DNZ

Low Power, Stereo Digital to Analog Converter

Cirrus Logic 

CS43L21

LRCK

SCLK

ts(LK-SK)

//

//

tP

//

//

SDIN

ts(SD-SK)

th

//

MSB

//

MSB-1

Figure 4. Serial Audio Interface Slave Mode Timing

Master Mode (Note 12)

Parameters

Symbol Min

Max Units

Output Sample Rate (LRCK)

All Speed Modes

Fs

-

M------C-----L---K---

Hz

128

LRCK Duty Cycle

SCLK Frequency

SCLK Duty Cycle

LRCK Edge to SDIN MSB Rising Edge

SDIN Setup Time Before SCLK Rising Edge

SDIN Hold Time After SCLK Rising Edge

45

1/tP

-

45

td(MSB)

ts(SD-SK)

20

th

20

55

%

64•Fs

Hz

55

%

52

ns

-

ns

-

ns

10. After powering up the CS43L21, RESET should be held low after the power supplies and clocks are set-

tled.

11. See “Example System Clock Frequencies” on page 57 for typical MCLK frequencies.

12. See “Master” on page 29

LRCK

SCLK

td(MSB)

//

//

tP

//

//

SDIN

ts(SD-SK)

th

//

MSB

//

MSB-1

Figure 5. Serial Audio Interface Master Mode Timing

DS723A1

17

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