XRT72L13 datasheet(69/370 Pages) EXAR

69 / 370 page

áç

M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC

XRT72L13

PRELIMINARY

REV. 1.0.6

As Figure 27 indicates, a given DS1 line can be com-

manded into the "DS1/E1 Tributary Loop-Back"

Mode. When this happens, then a selected DS1 or

E1 line, in the Receive Path, is looped back into the

Transmit Path. It is important to note that the corre-

sponding DS1 or E1 clock signal is also looped back.

1.1.3.2

DS2/ITU-T G.747 Tributary Loop-Back

Mode

Figure 28 presents an illustration of the XRT72L13

operating in the "DS2/ITU-T G.747 Tributary Loop-

Back" Mode.

FIGURE 27. ILLUSTRATION OF THE XRT72L13 OPERATING IN THE "DS1/E1 TRIBUTARY LOOP-BACK MODE

Clear Channel

DS3 Framer

Clear Channel

DS3 Framer

Microprocessor

Interface

Microprocessor

Interface

M12

MUX

M12

DEMUX

M23

MUX

M23

DEMUX

TxDS1[1: 27]

TxClk[1:27]

RxDS1[1: 27]

RxClk[1:27]

DS2 or G.747

Data Streams

RxPOS

RxNEG

TxPOS

TxNEG

RxLineClk

TxLineClk

32/64 Bit

De-Jitter

FIFO

RxClk_0

RxDS1_0

XRT72L13 Datasheet(PDF) 69 Page - Exar Corporation

XRT72L13 Datasheet(HTML) 69 Page - Exar Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL