CS4223-KS 参数 Datasheet PDF下载

CS4223 CS4224

SWITCHING CHARACTERISTICS

(T

A

= 25° C; VA, VD = 4.75 V - 5.25 V; outputs loaded with

30 pF)

Parameter

Audio ADC’s and DAC’s Sample Rate

XTI Frequency

XTI Pulse Width High

XTI = 256, 384, or 512 Fs

XTI = 512 Fs

XTI = 384 Fs

XTI = 256 Fs

XTI = 512 Fs

XTI = 384 Fs

XTI = 256 Fs

(Note 10)

DSCK = 0

DSCK = 0

DSCK = 0

t

dpd

t

lrpd

t

ds

t

dh

t

sckw

t

sckh

t

sckl

DSCK = 0

DSCK = 0

t

lrckd

t

lrcks

Symbol

Fs

Min

4

1.024

13

21

31

13

21

31

-

10

-

-

25

25

1

---------------------

-

(128) Fs

Typ

-

-

-

-

-

-

-

-

500

-

-

-

-

-

-

-

-

-

-

Max

50

26

-

-

-

-

-

-

-

-

1

--------------------- + 20

-

(384) Fs

Unit

kHz

MHz

ns

ns

ns

ns

ns

ns

psRMS

ms

ns

ns

ns

ns

ns

ns

ns

ns

ns

XTI Pulse Width Low

XTI Jitter Tolerance

RST Low Time

SCLK falling edge to SDOUT output valid

LRCK edge to MSB valid

SDIN setup time before SCLK rising edge

SDIN hold time after SCLK rising edge

SCLK Period

SCLK High Time

SCLK Low Time

SCLK rising to LRCK edge

LRCK edge to SCLK rising

45

-

-

-

-

-

-

-

40

40

35

40

Notes: 10. After powering up the CS4223/4, PDN should be held low for 10 ms to allow the power supply to settle.

LRCK

t lrckd

t lrcks

t sckh

t sckl

SCLK*

t sckw

SDIN

t lrpd

t ds

t dh

t dpd

SDOUT

MSB

MSB-1

*SCLK shown for DSCK = 0, SCLK inverted for DSCK = 1.

Figure 1. Serial Audio Port Data I/O Timing

DS290PP3

7