參數(shù)資料
型號(hào): XRT83SL30IV
廠商: EXAR CORP
元件分類: 數(shù)字傳輸電路
英文描述: SINGLE-CHANNEL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
中文描述: DATACOM, PCM TRANSCEIVER, PQFP64
封裝: 10 X 10 MM, 1.40 MM HEIGHT, TQFP-64
文件頁(yè)數(shù): 41/76頁(yè)
文件大?。?/td> 376K
代理商: XRT83SL30IV
á
XRT83SL30
SINGLE-CHANNEL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
PRELIMINARY
REMOTE LOOP-BACK (RLOOP)
REV. P1.0.4
38
With Remote Loop-Back activated, receive data after the jitter attenuator (if selected in the receive path) is
looped back to the transmit path using RCLK as transmit timing. In this mode transmit clock and data are
ignored, while RCLK and receive data will continue to be available at their respective output pins. Remote
Loop-Back with jitter attenuator selected in the receive path is shown in
Figure 19
.
In the Remote Loop-Back mode if the jitter attenuator is selected in the transmit path, the receive data from the
Clock and Data Recovery block is looped back to the transmit path and is applied to the jitter attenuator using
RCLK as transmit timing. In this mode the transmit clock and data are also ignored, while RCLK and received
data will continue to be available at their respective output pins. Remote Loop-Back with the jitter attenuator
selected in the transmit path is shown in
Figure 20
.
F
IGURE
19. R
EMOTE
L
OOP
-
BACK
MODE
WITH
JITTER
ATTENUATOR
SELECTED
IN
RECEIVE
PATH
F
IGURE
20. R
EMOTE
L
OOP
-
BACK
MODE
WITH
JITTER
ATTENUATOR
SELECTED
IN
T
RANSMIT
PATH
Tx
Decoder
Timing
Control
Rx
Data &
Clock
Recovery
TPOS
TNEG
TCLK
RCLK
RPOS
RNEG
Encoder
TTIP
TRING
RTIP
RRING
JA
Tx
Decoder
Timing
Control
Rx
Clock &
Data
Recovery
JA
TPOS
TNEG
TCLK
RCLK
RPOS
RNEG
Encoder
TTIP
TRING
RTIP
RRING
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