参数资料
| 型号： | SY89840UMG |
| 厂商： | Micrel Inc |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC MUX 2:1 LVPECL DIFF 16MLF |
| 标准包装： | 100 |
| 系列： | SY89 |
| 类型： | 多路复用器 |
| 电路： | 1 x 2:1 |
| 独立电路： | 1 |
| 电压电源： | 单电源 |
| 电源电压： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VFQFN 裸露焊盘，16-MLF? |
| 供应商设备封装： | 16-MLF?（3x3） |
| 包装： | 管件 |
| 产品目录页面： | 1090 (CN2011-ZH PDF) |
| 其它名称： | 576-1434 |
SY89840U
Precision LVPECL Runt Pulse Eliminator 2:1
Multiplexer
Precision Edge is a registered trademark of Micrel, 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
Oct. 1, 2013
M9999-021705
hbwhelp@micrel.com or (408) 955-1690
General Description
The SY89840U is a low jitter PECL, 2:1 differential input
multiplexer (MUX) optimized for redundant source
switchover applications.
Unlike standard multiplexers,
the SY89840U unique 2:1 Runt Pulse Eliminator (RPE)
MUX prevents any sh
ort 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 d
ifferential 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 (200mVpp) without any level shifting or
termination resistor networks in the signal path. The
output is 800mV, 100K compatible LVPECL with fast
rise/fall times guaranteed to be less than 190ps.
The SY89840U 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 SY89840U is
part of Micrel’s high-speed, Precision Edge
product
line. All support documentation can be found on Mi
crel’s
web site at: www.micrel.com.
Precision Edge
Features
Selects between two sources, and provides a glitch-free,
stable LVPECL output
Guaranteed AC performance over temperature and supply
voltage:
– Wide operating frequency: 1kHz to >1.5GHz
– < 880ps In-to-Out t
pd
– < 190ps t
r/tf
Unique patent-pending input isolation design minimizes
crosstalk
Fail-safe input prevents oscillations
Ultra-low jitter design:
– 140fs RMS phase jitter (Typ)
– 0.7ps
rms MUX crosstalk induced jitter
Unique patent-pending input termination and VT pin
accepts DC-coupled and AC-coupled inputs (CML,
PECL, LVDS)
800mV LVPECL 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) QFN package
Applications
Redundant clock switchover
Failsafe clock protection
Markets
LAN/WAN
Enterprise servers
ATE
Test and measurement
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SY89840UMG TR | 功能描述:编码器、解码器、复用器和解复用器 Precision 2:1 LVPECL MUX w/ RPE & FSI (I Temp, Green) RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| SY89840UMGTR | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Precision LVPECL Runt Pulse Eliminator 2:1 Multiplexer |
| SY89841U | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Precision CML Runt Pulse Eliminator 2:1 Multiplexer |
| SY89841UMG | 功能描述:编码器、解码器、复用器和解复用器 Precision 2:1 LVDS MUX w/ RPE & FSI (I Temp, Green) RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| SY89841UMG TR | 功能描述:编码器、解码器、复用器和解复用器 Precision 2:1 LVDS MUX w/ RPE & FSI (I Temp, Green) RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
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