參數(shù)資料
型號(hào)： 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)： 8/59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
5
REF2CLKP
REF2CLKN
LVPECL Diff
I
A11
B11
Reference Clock Input 2
This differential clock input reference is used for the transmit
clock multiplier unit (CMU) and clock data recovery (CDR) to
provide the necessary high-speed clock reference for this
device. Pin REFREQSEL[1:0] determines the value used as
the reference. See Pin REFREQSEL[1:0] for more details.
Internally terminated and biased.
REFREQSEL1
/ SCLK
LVTTL,
LVCMOS
I
D12
Reference Clock Frequency Select
Hardware Mode
REFREQSEL1 pin is used to select the fre-
quency of the REF1CLK and/or REF2CLK input to the CMU
and CDR.
N
OTE
:
Non-FEC rates require 155.52 MHz clock reference.
FEC rates require 166.63 MHz clock reference
This pin is provided with an internal pull-down.
Host Mode
This pin is functions as the microprocessor Serial
Clock Input.
REFREQSEL0
LVTTL,
LVCMOS
I
E12
Reference Clock Frequency Select
REFREQSEL0 pin is used to select the frequency of the
REF1CLK and/or REF2CLK input to the CMU and CDR.
N
OTE
:
Non-FEC rates require 155.52 MHz clock reference.
FEC rates require 166.63 MHz clock reference
This pin is provided with an internal pull-down.
COMMON CONTROL
N
AME
L
EVEL
T
YPE
P
IN
D
ESCRIPTION
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
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(shí)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(shí)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(shí)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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