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參數(shù)資料
| 型號(hào)： | XRT73L02 |
| 廠商： | Exar Corporation |
| 英文描述： | 2 Channel E3/DS3/STS-1 Line Interface Unit(2通道 E3/DS3/STS-1線接口單元) |
| 中文描述： | 2頻道E3/DS3/STS-1線路接口單元（2通道E3/DS3/STS-1線接口單元） |
| 文件頁數(shù)： | 10/62頁 |
| 文件大小： | 716K |
| 代理商： | XRT73L02 |
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XRT73L02
2 CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
REV. P1.1.0
á
PRELIMINARY
6
19
SDI/(RxOFF_0)
I
Serial Data Input for the Microprocessor Serial Interface/Channel 0 -
Receiver Shut OFF Input pin:
The function of this input pin depends on whether the XRT73L02 is operating
in the HOST Mode or in the Hardware Mode.
HOST Mode - Serial Data Input for the Microprocessor Serial Interface:
To read or write data into the Command Registers over the Microprocessor
Serial Interface, apply the Read/Write bit, the Address Values of the Com-
mand Registers and Data Value to be written during Write Operations to this
pin.
This input is sampled on the rising edge of the SClk pin.
Hardware Mode - Channel 0 Receiver Shut OFF Input pin:
Setting this input pin “High” shuts off the Channel 0 receiver. Setting this input
pin “Low” enables the Receive Section for full operation.
20
SDO/(E3_Ch_0)
I/O
Serial Data Output from the Microprocessor Serial Interface/E3_Mode
Select - Channel 0:
The function of this pin depends on whether the XRT73L02 is operating in the
HOST Mode or in the Hardware Mode.
HOST Mode Operation - Serial Data Output for the Microprocessor Serial
Interface:
This pin serially outputs the contents of the specified Command Register dur-
ing Read Operations. The data is updated on the falling edge of the SClk
input signal and tri-stated upon completion of data transfer.
Hardware Mode Operation - E3 Mode Select - Channel 0:
This input pin is used to configure Channel 0 in the XRT73L02 to operate in
the E3 or STS/DS3 Modes. Setting this input pin to "High" configures Channel
0 to operate in the E3 Mode. Setting this input pin to "Low" configures Chan-
nel 0 to operate in either the DS3 or STS-1 Modes, depending upon the state
of the STS-1/DS3_Ch_0 input pin.
21
STS-1/DS3_Ch_0
I
STS-1/DS3 Select Input - Channel 0:
Set this input pint to “High” for STS-1 and “Low” for DS3 Operation.
The XRT73L02 ignores this pin if the E3_Ch_0 pin is set to “1". This input pin
is ignored if the XRT73L02 is operating in the HOST Mode. If the XRT73L02
is operating in the HOST Mode, the pin should be tied to GND.
22
ICT
I
In-Circuit Test Input:
Setting this pin "Low" causes all digital and analog outputs to go into a high-
impedance state to allow for in-circuit testing. For normal operation, set this
pin "High".
N
OTE
:
This pin is internally pulled “High".
23
LOSTHR_0
I
Loss of Signal Threshold Control - Channel 0:
The voltage forced on this pin controls the input loss of signal threshold for
Channel 0. Forcing the LOSTHR_0 pin to GND or VDD provides two settings.
This pin must be set to the desired level upon power up and should not be
changed during operation.
N
OTE
:
This pin is only applicable during DS3 or STS-1 operations.
PIN DESCRIPTION
P
IN
#
S
IGNAL
N
AME
T
YPE
D
ESCRIPTION
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| XRT73L03A | 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73L03AIV | 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73L03B | 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73L03BIV | 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT73L02M | 制造商:EXAR 制造商全稱:EXAR 功能描述:TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT73L02MES | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| XRT73L02MIV | 制造商:EXAR 制造商全稱:EXAR 功能描述:TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT73L02MIV-F | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT73L02MIVTR-F | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
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