參數(shù)資料
型號(hào)： XRT91L82IB
廠商： EXAR CORP
元件分類： 數(shù)字傳輸電路
英文描述： 2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER
中文描述： TRANSCEIVER, PBGA196
封裝： 15 X 15 MM, STBGA-196
文件頁(yè)數(shù)： 23/59頁(yè)
文件大?。?/td> 414K
代理商： XRT91L82IB
xr
REV. P1.0.5
PRELIMINARY
2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER
XRT91L82
20
T
ABLE
5: C
LOCK
AND
D
ATA
R
ECOVERY
U
NIT
P
ERFORMANCE
Jitter specification is defined using a 12kHz to 20MHz appropriate SONET/SDH filter.
1
Required to meet SONET output frequency stability requirements.
2.4
XRT91L82 supports external Signal Detection (SDEXT). The external Signal Detect function is supported by
the SDEXT input. This input is coming from the optical module through an output usually called “SD” or “FLAG”
which indicates the lack or presence of optical power. Depending on the manufacturer of these devices, the
polarity of this signal can be either active "Low" or active "High." The SDEXT and POLARITY inputs are
Exclusive OR’ed to generate the internal Loss of Signal Detect (LOSD) declaration and Mute upon LOSD
control signal. Whenever an external SD is absent, the XRT91L82 will automatically force the receive parallel
data output to a logic state "0" for the entire duration that a LOSD condition is declared as well as update the
status registers whenever the host mode serial microprocessor interface feature is active. This acts as a
receive data mute upon LOSD function to prevent random noise from being misinterpreted as valid incoming
data. Table 6 specifies SDEXT declaration polarity settings.
External Signal Detection
N
AME
P
ARAMETER
M
IN
T
YP
M
AX
U
NITS
REF
DUTY
Reference clock duty cycle
45
55
%
REF
TOL
Reference clock frequency tolerance
1
-20
+20
ppm
OCLK
JIT
Clock output jitter generation with 155.52 MHz reference clock
5
7
mUI
rms
OCLK
JIT
Clock output jitter generation with 166.63 MHz reference clock
5
7
mUI
rms
TOL
JIT
Input jitter tolerance with 1 MHz < f < 20 MHz PRBS pattern
0.4
0.7
UI
OCLK
FREQ
Frequency output
2.488
2.667
GHz
OCLK
DUTY
Clock output duty cycle
45
55
%
T
ABLE
6: LOSD D
ECLARATION
P
OLARITY
S
ETTING
SDEXT
POLARITY I
NTERNAL
S
IGNAL
D
ETECT
R
ECEIVE
P
ARALLEL
D
ATA
O
UTPUT
RXDO[15:0]P/N
C
LOCK
AND
D
ATA
R
ECOVERY
PLL
R
EFERENCE
L
OCK
0
0
Active Low. Optical signal presence indicated by
SDEXT logic 0 input from optical module.
LOSD not declared.
Not Muted
Hi-Spd Received Data
0
1
Active High. Optical signal presence indicated by
SDEXT logic 1 input from optical module.
LOSD declared.
Muted
Local Reference Clock
1
0
Active Low. Optical signal presence indicated by
SDEXT logic 0 input from optical module.
LOSD declared.
Muted
Local Reference Clock
1
1
Active High. Optical signal presence indicated by
SDEXT logic 1 input from optical module.
LOSD not declared.
Not Muted
Hi-Spd Received Data
相關(guān)PDF資料
PDF描述
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
XRT94L43 SONET/SDH STS-12/STM-4 TO E3/DS3/STS-1 MAPPER/DEMAPPER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
XRT94L31ES-L04 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
XRT94L31IB 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Demapper 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*