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參數(shù)資料
| 型號： | SY89112UMY |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CLK BUFF MUX 2:12 3GHZ 44-MLF |
| 標準包裝： | 260 |
| 系列： | Precision Edge® |
| 類型： | 扇出緩沖器（分配），多路復用器 |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 2:12 |
| 差分 - 輸入:輸出： | 是/是 |
| 輸入： | CML，LVDS，LVPECL |
| 輸出： | LVPECL |
| 頻率 - 最大： | 3GHz |
| 電源電壓： | 2.375 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 44-VFQFN 裸露焊盤，44-MLF? |
| 供應商設備封裝： | 44-MLF?（7x7） |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1083 (CN2011-ZH PDF) |
| 其它名稱： | 576-3235 |
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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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SY89112UMY TR | 功能描述:編碼器、解碼器、復用器和解復用器 1:12 LVPECL Fanout w/ 2:1 MUX Input (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 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SY89112UMYTR | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:2.5/3.3V Low-Jitter, Low-Skew 1:12 LVPECL Fanout Buffer with 2:1 Input MUX and Internal Termination |
| SY89113U | 制造商:MICREL 制造商全稱: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 制造商全稱: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 制造商全稱:Micrel Semiconductor 功能描述:2.5V Low Jitter, Low Skew 1:12 LVDS Fanout Buffer with 2:1 Input MUX and |
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