參數(shù)資料
型號： XRT91L80_0507
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)： 9/45頁
文件大小： 359K
代理商： XRT91L80_0507
xr
REV. P1.1.0
PRELIMINARY
2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER
XRT91L80
7
ALTFREQSEL
LVTTL,
LVCMOS
I
P1
Reference Clock Frequency Select
This pin is used to select the frequency of the REFCLKP/N
clock input to the CMU.
"Low" = 77.76 MHz (83.31 MHz for FEC)
"High" = 155.52 MHz (166.63 MHz for FEC)
This pin is provided with an internal pull-up.
VCXO_SEL
LVTTL,
LVCMOS
I
M6
De-Jitter VCXO Select Option
This pin selects either the normal REFCLKP/N or the de-jitter
VCXO_INP/N pin as a reference clock to the CMU.
"Low" = Normal REFCLKP/N reference clock
"High" = De-Jitter VCXO_INP/N reference clock
This pin is provided with an internal pull-down.
VCXO_LOCK
LVCMOS
O
N8
De-Jitter PLL Lock Detect
If the de-jitter PLL lock detect is enabled with pin P3 and the de-
jitter VCXO mode is selected by pin M6, this pin will assert
"High" when the PLL is locked.
"Low" = VCXO Out of Lock
"High" = VCXO Locked
VCXO_LOCKEN
LVTTL,
LVCMOS
I
P3
De-Jitter PLL Lock Detect Enable
This pin enables the VCXO_INP/N lock detect circuit and
VCXO_LOCK pin N8 to be active.
"Low" = VCXO Lock Detect Disabled
"High" = VCXO Lock Detect Enabled
This pin is provided with an internal pull-down.
CPOUT
-
O
P8
Charge Pump Output (for external VCXO)
The nominal output of the charge pump current is 250
μ
A
LOOPBW
LVTTL,
LVCMOS
I
M7
CMU Loop Bandwidth Select
This pin is used to select the bandwidth of the clock multiplier
unit of the transmit path to a narrow or wide band. Use Wide
Band for clean reference signals and Narrow Band for noisy ref-
erences.
"Low" = Wide Band (4x)
"High" = Narrow Band (1x)
This pin is provided with an internal pull-down.
TXPCLKOP
TXPCLKON
LVDS
O
P10
P11
Transmit Parallel Clock Output
This 622.08 MHz clock can be used for the downstream device
to generate the TXDI[3:0]P/N data and TXPCLKIP/N clock
input. This enables the downstream device and the STS-48/
STM-16 transceiver to be in synchronization.
N
OTE
:
The XRT91L80 can output a 666.51 MHz transmit clock
output for Forward Error Correction (FEC).
TRANSMITTER SECTION
N
AME
L
EVEL
T
YPE
P
IN
D
ESCRIPTION
相關PDF資料
PDF描述
XRT91L80IB 2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER
XRT91L81 2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER
XRT91L81IB 2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER
XRT91L82 2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER
XRT91L82IB 2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER
相關代理商/技術參數(shù)
參數(shù)描述
XRT91L80ES 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
XRT91L80IB 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
XRT91L80IB-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
XRT91L81 制造商:EXAR 制造商全稱:EXAR 功能描述:2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER
XRT91L81IB 制造商:EXAR 制造商全稱:EXAR 功能描述:2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*