參數(shù)資料
型號: XRT73L00
廠商: Exar Corporation
英文描述: E3/DS3/STS-1 LINE INTERFACE UNIT
中文描述: E3/DS3/STS-1線路接口單元
文件頁數(shù): 13/53頁
文件大小: 604K
代理商: XRT73L00
á
XRT73L00
E3/DS3/STS-1 LINE INTERFACE UNIT
REV. 1.2.0
10
42
TxAVDD
-
Transmit Analog Power Supply
43
MRING
I
Monitor Ring Input:
This input pin along with the MTIP pin function as the input pins for the Transmit
Drive Monitor. These two input pins are used to determine whether or not a
bipolar line signal is being output via the TTIP and TRING output pins. The
Transmit Drive Monitor circuit will toggle the DMO output pin “high” denoting a
Transmit Line Fault condition if no bipolar pulses are detected via the TTIP/
TRING output pins for 128 bit-periods.
Connect this input pin to the TRING output pin via a 270 ohm resistor.
N
OTE
:
Tie this input pin to GND if you do not intend to use the Transmit Drive
Monitor.
44
MTIP
I
Monitor Tip Input:
This input pin along with the MRING pin function as the input pins for the Trans-
mit Drive Monitor. These two input pins are to be used to determine whether or
not a bipolar line signal is being output via the TTIP and TRING output pins. The
Transmit Drive Monitor circuit will toggle the DMO output pin “high” denoting a
Transmit Line Fault condition if no bipolar pulses are detected via the TTIP/
TRING output pins for 128 bit periods.
Connect this input pin to the TTIP output pin via a 270 ohm resistor.
N
OTE
:
Tie this input pin to GND if you do not intend to use the Transmit Drive
Monitor.
PIN DESCRIPTION
P
IN
#
S
YMBOL
T
YPE
D
ESCRIPTION
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