CRD4525 Просмотр технического описания (PDF) - Cirrus Logic

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CRD4525

30 W Digital TV Amplifier with Integrated ADC

Cirrus Logic 

SERIAL AUDIO INPUT PORT SWITCHING SPECIFICATIONS

Inputs: Logic 0 = DGND; Logic 1 = VD

Parameters

Symbol Min

Supported Input Sample Rates

28.5

FSI

39.5

39.5

86.4

LRCK Duty Cycle

45

SCLK Frequency

Single-Speed Mode

Double-Speed Mode

1/tp

-

SCLK Duty Cycle

45

LRCK Setup Time Before SCLK Rising Edge

SDIN Setup Time Before SCLK Rising Edge

SDIN Hold Time After SCLK Rising Edge

RST pin Low Pulse Width

ts(LK-SK)

40

ts(SD-SK)

25

th

10

(Note 7)

1

Nominal

32

44.1

48

96

-

-

-

-

-

-

-

-

CS4525

Max

35.2

52.8

52.8

105.6

55

128•FSI

64•FSI

55

-

-

-

-

Units

kHz

kHz

kHz

kHz

%

Hz

Hz

%

ns

ns

ns

ms

Notes: 7. After powering up the CS4525, RST should be held low until the power supplies and clocks are stable.

LRCK

SCLK

ts(LK-SK)

//

//

tP

//

tr

tf

//

SDIN

ts(SD-SK)

// th

MSB

//

MSB-1

Figure 7. Serial Audio Input Port Timing

DS726A1

21

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