參數(shù)資料
型號: XRT83SL28
廠商: Exar Corporation
英文描述: 8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
中文描述: 8路E1短途線路接口單元
文件頁數(shù): 18/47頁
文件大?。?/td> 377K
代理商: XRT83SL28
XRT83SL28
8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
xr
REV. 1.0.0
16
N
OTE
:
VDD=3.3V ±5%, T
A
=25°C, Unless Otherwise Specified
1.4
Receive Sensitivity
To meet short haul requirements, the XRT83SL28 can accept E1 signals that have been attenuated by 9dB of
cable loss in E1 mode. The test configuration for measuring the receive sensitivity is shown in Figure 8.
F
IGURE
8. T
EST
C
ONFIGURATION
FOR
M
EASURING
R
ECEIVE
S
ENSITIVITY
1.5
The receive path detects RLOS and AIS. These alarms can be individually masked to prevent the alarm from
triggering an interrupt. To enable interrupt generation, the Global Interrupt Enable (GIE) bit must be set "High"
in the appropriate global register. Any time a change in status occurs (if the alarms are enabled), the interrupt
pin will pull "Low" to indicate an alarm has occurred. Once the status registers have been read, the INT pin will
return "High". The status registers are Reset Upon Read (RUR).
N
OTE
:
The interrupt pin is an Open-Drain output that requires a 10k
pull-up resistor.
General Alarm Detection and Interrupt Generation
RCLK Rise Time (10% to 90%)
with 25pF Loading
RCLK
R
-
-
40
ns
RCLK Fall Time (90% to 10%)
with 25pF Loading
RCLK
F
-
-
40
ns
T
ABLE
2: T
IMING
S
PECIFICATIONS
FOR
RCLK/RPOS/RNEG
P
ARAMETER
S
YMBOL
M
IN
T
YP
M
AX
U
NITS
Network
Analyzer
E1 = PRBS 2
15
- 1
External Loopback
XRT83SL28
8-Channel
Short Haul LIU
Tx
Tx
Rx
Rx
W&G ANT20
Cable Loss
相關(guān)PDF資料
PDF描述
XRT83SL28IV 8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
XRT83SL30 SINGLE-CHANNEL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
XRT83SL30IV SINGLE-CHANNEL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
XRT83VSH28 8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
XRT83VSH28IB 8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
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