CS61305A 데이터 시트보기 (PDF) - Cirrus Logic

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CS61305A

T1/E1 Line Interface

Cirrus Logic 

CS61305A

SWITCHING CHARACTERISTICS (TA = -40° to 85°C; TV+, RV+ = ±5%;

Inputs: Logic 0 = 0V, Logic 1 = RV+)

Parameter

SDI to SCLK Setup Time

SCLK to SDI Hold Time

SCLK Low Time

SCLK High Time

SCLK Rise and Fall Time

CS to SCLK Setup Time

SCLK to CS Hold Time

CS Inactive Time

SCLK to SDO Valid

CS to SDO High Z

Input Valid To PCS Falling Setup Time

PCS Rising to Input Invalid Hold Time

PCS Active Low Time

Notes: 31. Output load capacitance = 50pF.

Symbol Min

Typ

tdc

50

-

tcdh

50

-

tcl

240

-

tch

240

-

tr, tf

-

-

tcc

50

-

tcch

50

-

tcwh

250

-

(Note 31) tcdv

-

-

tcdz

-

100

tsu4

50

-

th4

50

-

tpcsl

250

-

Max Units

-

ns

-

ns

-

ns

-

ns

50

ns

-

ns

-

ns

-

ns

200

ns

-

ns

-

ns

-

ns

-

ns

tr

tf

Any Digital Output

90%

10%

90%

10%

Figure 1. Signal Rise and Fall Characteristics

RCLK

RPOS

RNEG

RDATA

BPV

RCLK

6

tpw1

tpwl1

t su1

tpwh1

t h1

EXTENDED

HARDWARE

MODE OR

HOST MODE

(CLKE = 1)

Figure 2. Recovered Clock and Data Switching Characteristics

HARDWARE

MODE OR

HOST MODE

(CLKE = 0)

DS157PP3

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