参数资料
| 型号： | SY89112UMY TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/14页 |
| 文件大小： | 0K |
| 描述： | IC CLK BUFF MUX 2:12 3GHZ 44-MLF |
| 标准包装： | 1,000 |
| 系列： | Precision Edge® |
| 类型： | 扇出缓冲器（分配），多路复用器 |
| 电路数： | 1 |
| 比率 - 输入:输出： | 2:12 |
| 差分 - 输入:输出： | 是/是 |
| 输入： | CML，LVDS，LVPECL |
| 输出： | LVPECL |
| 频率 - 最大： | 3GHz |
| 电源电压： | 2.375 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-VFQFN 裸露焊盘，44-MLF? |
| 供应商设备封装： | 44-MLF?（7x7） |
| 包装： | 带卷 (TR) |
SY89112U
2.5/3.3V Low-Jitter, Low-Skew 1:12 LVPECL
Fanout Buffer with 2:1 Input MUX and
Internal Termination
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
April 8, 2014
040814-6.0
hbwhelp@micrel.com or (408) 955-1690
General Description
The SY89112U is a low-jitter, low-skew, high-speed
LVPECL 1:12 differential fanout buffer optimized for
precision
telecom
and
enterprise
server
distribution
applications. The input includes a 2:1 MUX for clock
switchover application. Unlike other multiplexers, this input
includes a unique isolation design to minimize channel-to-
channel
crosstalk.
The
SY89112U
distributes
clock
frequencies
from
DC
to
>2GHz
guaranteed
over
temperature and voltage. The SY89112U incorporates a
synchronous output enable (EN) so that the outputs will
only be enabled/disabled when they are already in the
LOW st
ate. This reduces the chance of generating “runt”
clock pulses.
The SY89112U differential input includes Micrel’s unique,
patent-pending 3-pin input termination architecture that
directly interfaces 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.
For AC-coupled input interface, an on-board output
reference voltage (VREF-AC) is provided to bias the
center-tap (VT) pin. The outputs are 800mV, 100K-
compatible LVPECL with fast rise/fall times guaranteed to
be less than 220ps.
The SY89112U 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 SY89112U is
part of Micrel’s high-speed, Precision Edge
product line.
Datasheets and support documentation are available on
Micrel’s web site at: www.micrel.com.
Features
Selects between 1 of 2 inputs, and provides 12
precision, low skew LVPECL output copies
Guaranteed AC performance over temperature and
voltage:
DC to >2GHz throughput
<550ps propagation delay CLK-to-Q
<220ps rise/fall time
<25ps output-to-output skew
Ultra-low jitter design:
50fs
RMS phase jitter (typ.)
<0.7ps
RMS crosstalk induced jitter
Unique, patent-pending input termination and VT pin
accepts DC-coupled and AC-coupled differential inputs
Unique, patent-pending 2:1 input MUX provides superior
isolation to minimize channel-to-channel crosstalk
800mV, 100K LVPECL output swing
Power supply 2.5V +5% or 3.3V +10%
Industrial temperature range –40°C to +85°C
Available in 44-pin (7mm x 7mm) QFN package
Applications
Multi-processor server
SONET/SDH clock/data distribution
Fibre Channel distribution
Gigabit Ethernet clock distribution
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SY89113U | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:2.5V Low Jitter, Low Skew 1:12 LVDS Fanout Buffer with 2:1 Input MUX and |
| SY89113U_07 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:2.5V Low Jitter, Low Skew 1:12 LVDS Fanout Buffer with 2:1 Input MUX and Internal Termination |
| SY89113U_10 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:2.5V Low Jitter, Low Skew 1:12 LVDS Fanout Buffer with 2:1 Input MUX and |
| SY89113UMG | 功能描述:IC CLK BUFF MUX 2:12 1GHZ 44-MLF RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟缓冲器，驱动器 系列:Precision Edge® 标准包装:1 系列:HiPerClockS™ 类型:扇出缓冲器（分配），多路复用器 电路数:1 比率 - 输入:输出:2:18 差分 - 输入:输出:是/无 输入:CML，LVCMOS，LVPECL，LVTTL，SSTL 输出:LVCMOS，LVTTL 频率 - 最大:250MHz 电源电压:2.375 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:32-LQFP 供应商设备封装:32-TQFP（7x7） 包装:- 其它名称:800-1923-6 |
| SY89113UMG TR | 功能描述:IC CLK BUFF MUX 2:12 1GHZ 44-MLF RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟缓冲器，驱动器 系列:Precision Edge® 标准包装:1 系列:HiPerClockS™ 类型:扇出缓冲器（分配），多路复用器 电路数:1 比率 - 输入:输出:2:18 差分 - 输入:输出:是/无 输入:CML，LVCMOS，LVPECL，LVTTL，SSTL 输出:LVCMOS，LVTTL 频率 - 最大:250MHz 电源电压:2.375 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:32-LQFP 供应商设备封装:32-TQFP（7x7） 包装:- 其它名称:800-1923-6 |
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