CRD44800-ST-FB View Datasheet(PDF) - Cirrus Logic

Part Name

Description

Manufacturer

CRD44800-ST-FB

6-Channel Digital Amplifier Controller

Cirrus Logic 

CS44600

SWITCHING CHARACTERISTICS - CONTROL PORT - SPI FORMAT

(VD = 2.5 V, VDP = VLS = 3.3 V; VLC = 2.5 V to 5.0 V; Inputs: Logic 0 = GND, Logic 1 = VLC, CL = 30 pF)

Parameter

Symbol Min Typ Max Units

CCLK Clock Frequency

CS High Time between Transmissions

CS Falling to CCLK Edge

CCLK Low Time

CCLK High Time

CDIN to CCLK Rising Setup Time

CCLK Rising to DATA Hold Time

CCLK Falling to CDOUT Stable

Rise Time of CDOUT

Fall Time of CDOUT

Rise Time of CCLK and CDIN

Fall Time of CCLK and CDIN

fsck

0

-

6.0

MHz

tcsh

1.0

-

-

µs

tcss

20

-

-

ns

tscl

66

-

-

ns

tsch

66

-

-

ns

tdsu

40

-

-

ns

(Note 19)

tdh

15

-

-

ns

tpd

-

-

50

ns

tr1

-

-

25

ns

tf1

-

-

25

ns

(Note 20)

tr2

-

-

100

ns

(Note 20)

tf2

-

-

100

ns

19. Data must be held for sufficient time to bridge the transition time of CCLK.

20. For fsck <1 MHz.

CS

t css

t scl t sch

t csh

CCLK

t r2

t f2

CDIN

CDOUT

t dsu

t dh

t pd

Figure 9. Control Port Timing - SPI Format

DS633F1

15

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