參數資料
| 型號： | SY89464UMY |
| 廠商： | Micrel Inc |
| 文件頁數： | 1/10頁 |
| 文件大小： | 0K |
| 描述： | IC CLOCK MUX 2:10 2GHZ 44-MLF |
| 標準包裝： | 260 |
| 系列： | Precision Edge® |
| 類型： | 多路復用器 |
| 電路數： | 1 |
| 比率 - 輸入:輸出： | 2:10 |
| 差分 - 輸入:輸出： | 是/是 |
| 輸入： | CML，LVDS，PECL |
| 輸出： | LVPECL |
| 頻率 - 最大： | 2GHz |
| 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 |
| 產品目錄頁面： | 1083 (CN2011-ZH PDF) |
| 其它名稱： | 576-3237 |
SY89464U
Precision LVPECL 1:10 Fanout with 2:1 Runt
Pulse Eliminator 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
December 2007
M9999-120607-C
hbwhelp@micrel.com or (408) 955-1690
General Description
The SY89464U is a low jitter 1:10 LVPECL fanout
buffer with a 2:1 differential input multiplexer (MUX)
optimized
for
redundant
source
switchover
applications.
Unlike
standard
multiplexers,
the
SY89464U’s unique 2:1 Runt Pulse Eliminator
(RPE) MUX prevents any short cycles or “runt”
pulses during switchover. In addition, a unique Fail-
Safe Input (FSI) protection prevents metastable
output 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
internal
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 800mV,
100K-compatible LVPECL with fast rise/fall times
guaranteed to be less than 220ps.
The SY89464U 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
SY89464U 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 10
precision LVPECL copies
Guaranteed AC performance over temperature and
supply voltage:
– Wide operating frequency: 1kHz to >1.5GHz
– < 1100ps In-to-Out tpd
– < 220ps tr/tf
Unique, patent-pending MUX input isolation design
minimizes adjacent channel 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 patented internal termination and VT pin
accepts DC- and AC-coupled inputs (CML, PECL,
LVDS)
800mV LVPECL output
2.5V ±5% or 3.3V ±10% supply voltage
Output enable
-40°C to +85°C industrial temperature range
Available in 44-pin (7mm x 7mm) QFN package
Applications
Redundant clock switchover
Fail-safe clock protection
Markets
LAN/WAN
Enterprise servers
ATE
Test and measurement
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SY89464UMY TR | 功能描述:編碼器、解碼器、復用器和解復用器 2:1 RPE MUX w/ 1:10 LVPECL Fanout (I Temp, Green) RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（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 |
| SY89464UMYTR | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVPECL 1:10 Fanout with 2:1 Runt |
| SY89465U | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVDS 1:10 Fanout with 2:1 Runt Pulse Eliminator MUX and Internal Termination |
| SY89465U_10 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVDS 1:10 Fanout with 2:1 Runt Pulse Eliminator MUX and Internal Termination |
| SY89465UMG | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVDS 1:10 Fanout with 2:1 Runt Pulse Eliminator MUX and Internal Termination |
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