XRT72L13 datasheet(53/370 Pages) EXAR

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XRT72L13

M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC

PRELIMINARY

REV. P1.0.6

t28

“TXOH” to “TxInClk” rising edge set-up Time

t29A

TxInClk to “TxOHEnable”

Transmit LIU Interface Timing (see Figure 8 and Figure 9)

t30

Rising edge of "TxLineClk" to rising edge of

"TxPOS" or "TxNEG" output signal.

(Framer is configured to output data on "TxPOS"

and "TxNEG" on rising edge of "TxLineClk"

0.6

t31

Falling edge of "TxLineClk" to rising edge of

"TxPOS" or "TxNEG"

(Framer is configured to output data via "TxPOS"

and "TxNEG" on falling edge of "TxLineClk")

0.6

fTxLineClk Period of TxLineClk clock signal

44.736

MHz

t32

Period of TxLineClk

22.36

Receive LIU Interface Timing (see Figure 10 and Figure 11)

t38

"RxPOS" or "RxNEG" set-up time to rising edge of

"RxLineClk".

(Framer is configured to sample data on "RxPOS"

and "RxNEG" input pins, on the rising edge of "RxLi-

neClk")

0ns

t39

"RxPOS" or "RxNEG" hold time, from rising edge of

"RxLineClk"

(Framer is configured to sample data on "RxPOS"

and "RxNEG" input pins, on the rising edge of "RxLi-

neClk")

2.4

t40

"RxPOS" or "RxNEG" set-up time to falling edge of

"RxLineClk".

(Framer is configured to sample data on "RxPOS"

and "RxNEG" input pins, on the falling edge of "RxLi-

neClk")

0ns

t41

"RxPOS" or "RxNEG" hold time, from falling edge of

"RxLineClk"

(Framer is configured to sample data on "RxPOS"

and "RxNEG" input pins, on the falling edge of "RxLi-

neClk")

2.4

Receive Payload Data Output Inteface Timing - Serial Mode Operation (See Figure 12)

t50

Falling edge of RxClk to "Payload Data" (RxSer) out-

put delay

0ns

t51

Falling edge of "RxClk" to "RxFrame" output delay

1.3

t52

Falling edge of "RxClk" to "RxOHInd" output delay.

2.6

Receive Payload Data Output Interface Timing - Nibble Mode Operation (see Figure 13)

t53

Falling edge of “RxClk” to rising edge of “RxFrame”

output delay

AC ELECTRICAL CHARACTERISTICS (CONT.)

Test Conditions: TA = 25(C, VCC = 3.3V + 5% unless otherwise specified

SYMBOL

PARAMETER

MIN.TYP.MAX.UNITS

CONDITIONS

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