Cirrus-logic CS48DV2B User Manual download pdf (Page 18)

CS48DV2B Data Sheet

32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby

CONFIDENTIAL

CONFIDENTI

DRA

ELPHI

5.13 Switching Characteristics — Digital Audio Slave Input Port

Figure 7. Digital Audio Input (DAI) Port Timing Diagram

5.14 Switching Characteristics — DSD Slave Input Port

Figure 8. Direct Stream Digital - Serial Audio Input Timing

Parameter Symbol Min Max Unit

DAI_SCLK period T

daiclkp

40 - ns

DAI_SCLK duty cycle - 45 55 %

Setup time DAI_DATAn t

daidsu

10 - ns

Hold time DAI_DATAn t

daidh

5-ns

Parameter Symbol Min Typ Max Unit

DSD_SCLK Pulse Width Low t

sclkl

78 - - ns

DSD_SCLK Pulse Width High t

sclkh

78 - - ns

DSD_SCLK Frequency (64x Oversampled) - 1.024 - 3.2 MHz

DSD_A / _B valid to DSD_SCLK rising setup time t

sdlrs

20 - - ns

DSD_SCLK rising to DSD_A or DSD_B hold time t

sdh

20 - - ns

DAI_SCLK

AI_DATAn

daidh

daidsu

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Cirrus-logic CS48DV2B User Manual Page 18