參數(shù)資料
型號(hào): XRT75L00DIVTR-F
廠商: Exar Corporation
文件頁數(shù): 8/92頁
文件大?。?/td> 0K
描述: IC LIU E3/DS3/STS-1 SGL 52TQFP
標(biāo)準(zhǔn)包裝: 1,000
類型: 線路接口裝置(LIU)
驅(qū)動(dòng)器/接收器數(shù): 1/1
規(guī)程: DS3,E3,STS-1,SONET
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 52-LQFP
供應(yīng)商設(shè)備封裝: 52-TQFP(10x10)
包裝: 帶卷 (TR)
XRT75L00D
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
REV. 1.0.2
11
17
LLB
I
Local Loop-back
This input pin along with RLB configures different Loop-Back modes.
NOTE:
This input pin is ignored and may be connected to GND if the
XRT75L00D is operating in the HOST Mode.
18
RLB
I
Remote Loop-back
This input pin along with LLB configures different Loop-Back modes.
NOTE:
This input pin is ignored and should be connected to GND if the
XRT75L00D is operating in the HOST Mode.
MICROPROCESSOR SERIAL INTERFACE - (HOST MODE)
PIN #SIGNAL NAME
TYPE
DESCRIPTION
24
CS/RxClkINV
I
Microprocessor Serial Interface - Chip Select
Tie this “Low” to enable the communication with Serial Microprocessor Inter-
face.
NOTE: If the XRT75L00D is configured in Hardware Mode,this pin functions as
RxClkINV.
26
SCLK/TxClkINV
I
Serial Interface Clock Input
The data on the SDI pin is sampled on the rising edge of this signal. Addition-
ally, during Read operations the Microprocessor Serial Interface updates the
SDO output on the falling edge of this signal.
NOTE: If the XRT75L00D is configured in Hardware Mode, this pin functions as
TxClkINV.
25
SDI/RxON
I
Serial Data Input:
Data is serially input through this pin.
The input data is sampled on the rising edge of the SCLK pin (pin 26).
NOTES:
1.
This pin is internally pulled down
2.
If the XRT75L00D is configured in Hardware Mode, this pin functions
as RxON.
27
SDO/RxMON
O
Serial Data Output:
This pin serially outputs the contents of the specified Command Register during
Read Operations. The data is updated on the falling edge of the SCLK and this
pin is tri-stated upon completion of data transfer.
NOTE: If the XRT75L00D is configured in Hardware Mode, this pin functions as
RxMON.
CONTROL AND ALARM INTERFACE
RLB
0
Loopback Mode
Normal Operation
Analog Local
LLB
0
1
Remote
Digital
0
1
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