Cirrus-logic CS4245 Bedienungsanleitung PDF herunterladen (Seite 24)

24 DS656F3

CS4245

SWITCHING CHARACTERISTICS - SERIAL AUDIO PORT 2

Logic ‘0’ = DGND = AGND = 0 V; Logic ‘1’ = VL, C

= 20 pF. (Note 29)

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

Parameter Symbol Min Typ Max Unit

Sample Rate Single Speed Mode

Double Speed Mode

Quad Speed Mode

100

200

kHz

MCLK Specifications

MCLK2 Input Frequency fmclk 1.024 - 51.200 MHz

MCLK2 Input Pulse Width High/Low t

clkhl 8--ns

Master Mode

LRCK2 Duty Cycle - 50 - %

SCLK2 Duty Cycle - 50 - %

SCLK2 falling to LRCK edge t

slr

-10 - 10 ns

SDIN valid to SCLK2 rising setup time t

sdis

16 - - ns

SCLK2 rising to SDIN hold time t

sdih

20 - - ns

Slave Mode

LRCK2 Duty Cycle 40 50 60 %

SCLK2 Period

Single-Speed Mode

Double-Speed Mode

Quad-Speed Mode

sclkw

SCLK2 Pulse Width High t

sclkh

30 - - ns

SCLK2 Pulse Width Low t

sclkl

48 - - ns

SCLK2 falling to LRCK2 edge t

slr

-10 - 10 ns

SDIN valid to SCLK2 rising setup time t

sdis

16 - - ns

SCLK2 rising to SDIN hold time t

sdih

20 - - ns

128Fs

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64Fs

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64Fs

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1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 58 59

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