CDB4397 datasheet(10/34 Pages) CIRRUS

10 / 34 page

CS4397

DS333F1

SWITCHING CHARACTERISTICS (T

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

1 = VD = 5.25 to 3.0 Volts; CL =20pF)

Parameter

Symbol

Min

Typ

Max

Unit

Input Sample Rate

(Single-speed mode)

(Double-speed mode)

(Quad-speed mode)

100

200

kHz

LRCK Duty Cycle

MCLK Frequency

(Single-speed 256 Fs,

Double speed 128 Fs or Quad-speed 64 Fs)

4.096

12.8

MHz

MCLK Frequency

(Single-speed 384 Fs,

Double speed 192 Fs or Quad-speed, 96 Fs

6.144

19.2

MHz

MCLK Frequency

(Single-speed 512 Fs,

Double speed 256 Fs or Quad-speed, 128 Fs

8.192

25.6

MHz

MCLK Frequency

(Single-speed 768 Fs,

Double speed 384 Fs or Quad-speed, 192 Fs

12.288

38.4

MHz

MCLK Duty Cycle

SCLK Frequency

(Single-speed mode)

(Double-speed mode)

(Quad-speed mode)

256×Fs

128×Fs

64×Fs

SCLK rising to LRCK edge delay

tslrd

--ns

SCLK rising to LRCK edge setup time

tslrs

--ns

SDATA valid to SCLK rising setup time

tsdlrs

--ns

SCLK rising to SDATA hold time

tsdh

--ns

slrs

slrd

sdlrs

sdh

SDATA

SCLK

LRCK

Figure 1. Serial Audio Input Timing

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