XRT79L71IB datasheet(96/109 Pages) EXAR

tên linh kiện	XRT79L71IB

Giải thích chi tiết về linh kiện	1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - HARDWARE

PDF	109 Pages

Scroll/Zoom	100%

nhà sản xuất	EXAR [Exar Corporation]

Trang chủ	http://www.exar.com

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XRT79L71

1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - HARDWARE

REV. 1.0.0

t14

TxNib set-up time to third rising edge of TxInClk

DS3 Applications

E3 Applications

t15

Payload Nibble hold time, from latching edge of

TxInClk

t16

TxFrameRef set-up time, to latching edge of TxInClk

DS3 Applications

E3 Applications

Framer IC is

Frame Slave

t17

TxFrameRef hold time, from latching edge of TxNib-

Clk

Framer IC is

Frame Slave

t18

TxNibClk to TxNibFrame output delay time

DS3 Applications

E3 Applications

FIGURE 17. TIMING DIAGRAM FOR THE TRANSMIT PAYLOAD DATA INPUT INTERFACE WHEN THE XRT79L71 IS

OPERATING IN BOTH THE

DS3 AND LOOP-TIMING MODES

TABLE 16: TIMING INFORMATION FO RTHE TRNASMIT PAYLOAD DATA INPUT INTERFACE BLOCK

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

SYMBOL

PARAMETER

MIN.TYP.MAX.UNITS

CONDITIONS

XRT79L71 Transmit Payload Data I/F Signals

RxOutClk

TxSer

TxFrame

TxOH_Ind

Payload[4702]

Payload[4703]

X-Bit

Payload[0]

DS3 Frame Number N

DS3 Frame Number N + 1

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