Cirrus-logic CS43122 Manuel d'utilisateur télécharger pdf (Page 9)

CS43122

9

SWITCHING CHARACTERISTICS (T

A

= -10 to 70° C; Logic 0 = AGND = DGND; Logic

1 = VD = 5.25 to 3.0 Volts; C

L

=20pF)

Parameter Symbol Min Typ Max Unit

Input Sample Rate (Operational Mode 0)

(Operational Mode 1)

(Operational Mode 2)

Fs

Fs

Fs

16

45

95

-

-

-

55

105

200

kHz

kHz

kHz

LRCK Duty Cycle 45 50 55 %

MCLK Frequency (Operational Mode 0, 256 Fs)

(Operational Mode 1, 128 Fs)

(Operational Mode 2, 64 Fs)

4.096

- 14.08 MHz

MCLK Frequency (Operational Mode 0, 384 Fs)

(Operational Mode 1, 192 Fs)

(Operational Mode 2, 96 Fs)

6.144

- 21.12 MHz

MCLK Frequency (Operational Mode 0, 512 Fs)

(Operational Mode 1, 256 Fs)

(Operational Mode 2 , 128 Fs)

8.192

- 28.16 MHz

MCLK Frequency (Operational Mode 0, 768 Fs)

(Operational Mode 1, 384 Fs)

(Operational Mode 2 , 192 Fs)

12.288

- 42.24 MHz

MCLK Duty Cycle 40 50 60 %

SCLK Frequency (Operational

Mode 0) (Operational Mode 1)

(Operational Mode 2)

-

-

-

-

-

-

256×Fs

128×Fs

64×Fs

Hz

Hz

Hz

SCLK rising to LRCK edge delay t

slrd

20 - - ns

SCLK rising to LRCK edge setup time t

slrs

20 - - ns

SDATA valid to SCLK rising setup time t

sdlrs

20 - - ns

SCLK rising to SDATA hold time t

sdh

20 - - ns

sclkh

t

slrs

t

slrd

t

sdlrs

t

sdh

t

sclkl

t

SDATA

SCLK

LRCK

Figure 1. Serial Audio Input Timing

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 27 28

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