CS4811MXR-01 查看數據表（PDF） - Cirrus Logic

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CS4811MXR-01

Fixed Function Multi-Effects Audio Processor

Cirrus Logic 

CS4811

SWITCHING CHARACTERISTICS - CONTROL PORT - SPI MASTER (TA = 25° C,

VA, VD = 5 V; Inputs: logic 0 = DGND, logic 1 = VD, CL = 30 pF)

Parameter

Symbol

Min

Typ

Max

Units

SPI Master (Self-Boot) Mode (SPI/I2C = 0, SCPM/S = 1)

CCLK Clock Frequency

fsck

CCLK Low Time

tscl

CCLK High Time

tsch

CCLK Rise Time

(Note 10)

tr2

CCLK Fall Time

(Note 10)

tf2

RST rising to CS falling

tsrs

CS High Time Between Transmissions

tcsh

CS Falling to CCLK Edge

tcss

CS Falling to CDOUT valid

tdv

CCLK Falling to CDOUT valid

tpd

CDIN to CCLK Rising Setup Time

tdsu

CCLK Rising to DATA Hold Time

tdh

CCLK Falling to CS rising

tclcs

-

Fs

-

kHz

-

1/(2*Fs)

-

ns

-

1/(2*Fs)

-

ns

-

12

-

ns

-

12

-

ns

-

42

-

µs

37

-

-

µs

5

-

-

µs

-

-

50

ns

-

-

100

ns

80

-

-

ns

80

-

-

ns

40

-

-

ns

Notes: 10. Measured with a 2.2 kΩ pullup resistor to VD.

RST

t srs

CS

CCLK

CDIN

CDOUT

t css

t scl t sch

t r2

t f2

t dsu t dh

t clcs

t csh

t dv

t pd

Figure 1. SPI Control Port Timing

DS486PP2

7

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