CS4245 データシートの表示（PDF） - Cirrus Logic

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CS4245

104 dB, 24-Bit, 192 kHz Stereo Audio CODEC

Cirrus Logic 

SWITCHING CHARACTERISTICS - SERIAL AUDIO PORT 2

Logic ‘0’ = DGND = AGND = 0 V; Logic ‘1’ = VL, CL = 20 pF. (Note 29)

Parameter

Symbol Min

Typ

Sample Rate

MCLK Specifications

Single Speed Mode Fs

4

-

Double Speed Mode Fs

50

-

Quad Speed Mode Fs

100

-

MCLK2 Input Frequency

fmclk

1.024

-

MCLK2 Input Pulse Width High/Low

Master Mode

tclkhl

8

-

LRCK2 Duty Cycle

-

50

SCLK2 Duty Cycle

-

50

SCLK2 falling to LRCK edge

SDIN valid to SCLK2 rising setup time

SCLK2 rising to SDIN hold time

Slave Mode

tslr

-10

-

tsdis

16

-

tsdih

20

-

LRCK2 Duty Cycle

40

50

SCLK2 Period

Single-Speed Mode tsclkw

(---1---21---8-0--)-9--F----s-

-

Double-Speed Mode tsclkw

(---6--1-4--0-)---F9----s-

-

Quad-Speed Mode tsclkw

(---6--1-4--0-)---F9----s-

-

SCLK2 Pulse Width High

SCLK2 Pulse Width Low

SCLK2 falling to LRCK2 edge

SDIN valid to SCLK2 rising setup time

SCLK2 rising to SDIN hold time

tsclkh

30

-

tsclkl

48

-

tslr

-10

-

tsdis

16

-

tsdih

20

-

29. See Figure 5 and Figure 6 on page 25.

CS4245

Max

50

100

200

51.200

-

-

-

10

-

-

60

-

Unit

kHz

kHz

kHz

MHz

ns

%

%

ns

ns

ns

%

ns

-

ns

-

ns

-

ns

-

ns

10

ns

-

ns

-

ns

24

DS656F2

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