參數(shù)資料
型號(hào)： SY89841U
廠商： Micrel Semiconductor,Inc.
英文描述： Precision CML Runt Pulse Eliminator 2:1 Multiplexer
中文描述： 精密白血病短脈沖消除2:1多路復(fù)用器
文件頁(yè)數(shù)： 1/16頁(yè)
文件大?。?/td> 668K
代理商： SY89841U
SY89842U
Precision CML Runt Pulse Eliminator 2:1
Multiplexer
General Description
The SY89842U is a low jitter CML, 2:1 differential
input multiplexer (MUX) optimized for redundant
source switchover applications. Unlike standard
multiplexers, the SY89842U unique 2:1 Runt Pulse
Eliminator (RPE) MUX prevents any short cycles or
“runt” pulses during switchover. In addition, a unique
Fail-Safe Input protection prevents metastable
conditions when the selected input clock fails to a
DC voltage (voltage between the pins of the
differential input drops below 100mV).
The differential input includes Micrel’s unique, 3-pin
input termination architecture that allows customers
to interface to any differential signal (AC- or DC-
coupled) as small as 100mV (200mV
PP
) without any
level shifting or termination resistor networks in the
signal path. The output is 400mV CML with fast
rise/fall times guaranteed to be less than 80ps.
The SY89842U operates from a 2.5V ±5% or 3.3V
±10% supply and is guaranteed over the full
industrial temperature range of –40°C to +85°C. The
SY89842U is part of Micrel’s high-speed, Precision
Edge
product line. All support documentation can
be found on Micrel’s web site at:
www.micrel.com
.
Precision Edge is a registered trademark of Micrel, Inc.
MLF and
Micro
LeadFrame are trademarks of Amkor Technology, Inc.
Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
March 2005
M9999-030805
hbwhelp@micrel.com
or (408) 955-1690
Precision Edge
Features
Selects between two sources, and provides a glitch-
free, stable CML output
Guaranteed AC performance over temperature and
supply voltage:
– Wide operating frequency: 1kHz to >1.5GHz
– < 840ps In-to-Out t
pd
– < 80ps t
r
/t
f
Unique, patent-pending input isolation design
minimizes crosstalk
Fail-safe input prevents oscillations
Ultra-low jitter design:
– <1ps
RMS
random jitter
– <1ps
RMS
cycle-to-cycle jitter
– <10ps
PP
total jitter (clock)
– <0.7ps
RMS
MUX crosstalk induced jitter
Unique patent-pending input termination and VT pin
accepts DC- and AC-coupled inputs (CML, PECL,
LVDS)
400mV CML output swing
2.5V ±5% or 3.3V ±10% supply voltage
-40°C to +85°C industrial temperature range
Available in 16-pin (3mm x 3mm) MLF package
Applications
Redundant clock switchover
Fail-safe clock protection
Markets
LAN/WAN
Enterprise servers
ATE
Test and measurement
相關(guān)PDF資料
PDF描述
SY89842U Precision CML Runt Pulse Eliminator 2:1 Multiplexer
SY89845U PRECISION CML RUNT PULSE ELIMINATOR 2:1 MUX WITH 1:2 FANOUT AND INTERNAL TERMINATION
SY89845UMG PRECISION CML RUNT PULSE ELIMINATOR 2:1 MUX WITH 1:2 FANOUT AND INTERNAL TERMINATION
SY89845UMGTR PRECISION CML RUNT PULSE ELIMINATOR 2:1 MUX WITH 1:2 FANOUT AND INTERNAL TERMINATION
SY89858UMG PRECISION LOW POWER 1:8 LVPECL FANOUT BUFFER WITH INTERNAL TERMINATION
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SY89841UMG 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Precision 2:1 LVDS MUX w/ RPE & FSI (I Temp, Green) RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SY89841UMG TR 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Precision 2:1 LVDS MUX w/ RPE & FSI (I Temp, Green) RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SY89841UMGTR 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVDS Runt Pulse Eliminator 2:1 Multiplexer
SY89842U 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision CML Runt Pulse Eliminator 2:1
SY89842U_10 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision CML Runt Pulse Eliminator 2:1
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