參數(shù)資料
型號： XRT91L82
廠商： Exar Corporation
英文描述： 2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER
中文描述： 2.488/2.666 Gbps的STS-48/STM-16的SONET / SDH收發(fā)器
文件頁數(shù)： 50/59頁
文件大?。?/td> 414K
代理商： XRT91L82
XRT91L82
2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER
PRELIMINARY
xr
REV. P1.0.5
47
D5
ALTFREQSEL
Alternate Low Reference Frequency Select (77.76/83.31 MHz)
This pin is used to select and support lower frequency settings on
REF1CLKP/N and REF2CLKP/N reference clock inputs. When
using a VCXO, this pin should also be set accordingly to the VCXO
frequency output.
"0" = 77.76/83.31 MHz reference frequency support
"1" = 155.52/166.63 MHz reference frequency support
Note: Non-FEC transmission and/or reception modes require
77.76 MHz clock reference. FEC transmission and/or reception
mode requires 83.31 MHz clock reference.
Note: Non-FEC transmission and/or reception modes require
155.52 MHz clock reference. FEC transmission and/or reception
mode requires 166.63 MHz clock reference.
R/W
1
D4
TXCLKO16SEL
Auxiliary Clock Output Select
This bit is used to select the auxiliary clock frequency output.
"0" = TXCLKO16P/N outputs 155.52/166.63 MHz
"1" = TXCLKO16P/N outputs 19.44/20.83 MHz
R/W
0
C
ONFIGURATION
C
ONTROL
R
EGISTER
(0
X
07
H
)
B
IT
N
AME
F
UNCTION
Register
Type
Default
Value
(HW reset)
If
ALTFREQSEL
= "
0
"
REFREQSEL
[1:0]
CMU
REFERENCE
FREQUENCY
CDR
REFERENCE
FREQUENCY
00
77.76 MHz present on
REF1CLK
REF2CLK not used
77.76 MHz present on
REF1CLK
REF2CLK not used
01
77.76 MHz present on
REF1CLK
83.31 MHz present on
REF2CLK
10
83.31 MHz present on
REF2CLK
77.76 MHz present on
REF1CLK
11
83.31 MHz present on
REF2CLK
REF1CLK not used
83.31 MHz present on
REF2CLK
REF1CLK not used
If
ALTFREQSEL
= "
1
"
REFREQSEL
[1:0]
CMU
REFERENCE
FREQUENCY
CDR
REFERENCE
FREQUENCY
00
155.52 MHz present on
REF1CLK
REF2CLK not used
155.52 MHz present on
REF1CLK
REF2CLK not used
01
155.52 MHz present on
REF1CLK
166.63 MHz present on
REF2CLK
10
166.63 MHz present on
REF2CLK
155.52 MHz present on
REF1CLK
11
166.63 MHz present on
REF2CLK
REF1CLK not used
166.63 MHz present on
REF2CLK
REF1CLK not used
相關(guān)PDF資料
PDF描述
XRT91L82IB 2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER
XRT94L31_07 3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
XRT94L31 3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER
XRT94L31IB 3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER
XRT94L43A SONET/SDH OC-12 TO 12XDS3/E3 MAPPER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT91L82ES 功能描述:總線收發(fā)器 Transceiver RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
XRT91L82IB 功能描述:總線收發(fā)器 Transceiver RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
XRT91L82IB-F 功能描述:總線收發(fā)器 Transceiver RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
XRT94L31 制造商:EXAR 制造商全稱:EXAR 功能描述:3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
XRT94L31_07 制造商:EXAR 制造商全稱:EXAR 功能描述:3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
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