参数资料
| 型号： | SY89844UMG |
| 厂商： | Micrel Inc |
| 文件页数： | 1/18页 |
| 文件大小： | 0K |
| 描述： | IC MUX LVDS 2:1 PRECISION 24MLF |
| 标准包装： | 75 |
| 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： | 24-VFQFN 裸露焊盘，24-MLF? |
| 供应商设备封装： | 24-MLF?（4x4） |
| 包装： | 管件 |
| 产品目录页面： | 1091 (CN2011-ZH PDF) |
| 其它名称： | 576-1454 |
SY89844U
Precision LVDS Runt Pulse Eliminator 2:1
MUX with 1:2 Fanout and Internal Termination
May 2007
M9999-052207-B
hbwhelp@micrel.com or (408) 955-1690
Precision Edge is a registered trademark of Micrel, Inc.
General Description
The SY89844U is a low jitter LVDS, 2:1 input
multiplexer (MUX) optimized for redundant source
switchover
applications.
Unlike
standard
multiplexers, the SY89844U 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 (200mVpp) without any
level shifting or termination resistor networks in the
signal path. The outputs are 325mV LVDS with fast
rise/fall times guaranteed to be less than 150ps.
The SY89844U operates from a 2.5V ±5% supply
and
is
guaranteed
over
the
full
industrial
temperature
range
of
–40°C
to
+85°C.
The
SY89844U 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
Features
Selects between two sources, and provides a
glitch-free, stable LVDS output
Guaranteed AC performance over temperature
and supply voltage:
– wide operating frequency: 1kHz to >1.5GHz
– <870ps In-to-Out tpd
– <150ps tr/tf
Unique patent-pending input isolation design
minimizes crosstalk
Fail-Safe Input prevents oscillations
Ultra-low jitter design:
– <1psRMS random jitter
– <1psRMS cycle-to-cycle jitter
– <10psPP total jitter (clock)
– <0.7psRMS MUX crosstalk induced jitter
Unique patent-pending input termination and VT
pin accepts DC- and AC-coupled inputs (CML,
PECL, LVDS)
325mV LVDS output swing
2.5V +5% power supply
–40°C to +85°C industrial temperature range
Available in 24-pin (4mm x 4mm) QFN package
Applications
Redundant clock switchover
Fail-safe 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 |
|---|---|
| SY89844UMG TR | 功能描述:编码器、解码器、复用器和解复用器 2.5V 2:1 RPE/FSI LVDS MUX w/ 1:2 Fanout (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 |
| SY89844UMGTR | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Precision LVDS Runt Pulse Eliminator 2:1 MUX with 1:2 Fanout and Internal Termination |
| SY89845U | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Precision CML Runt Pulse Eliminator 2:1 MUX |
| SY89845U_10 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Precision CML Runt Pulse Eliminator 2:1 MUX |
| SY89845UMG | 功能描述:编码器、解码器、复用器和解复用器 2.5/3.3V 2:1 RPE/FSI CML MUX w/ 1:2 Fanout (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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