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參數(shù)資料
| 型號(hào)： | SY89112UMYTR |
| 廠商： | MICREL INC |
| 元件分類： | 時(shí)鐘及定時(shí) |
| 英文描述： | 89112 SERIES, LOW SKEW CLOCK DRIVER, 12 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC44 |
| 封裝： | 7 X 7 MM, LEAD FREE, MO-220, MLF-44 |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大小： | 689K |
| 代理商： | SY89112UMYTR |
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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
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 state. 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.
All
support
documentation
can
be
found
on
Micrel’s web site at www.micrel.com.
Precision Edge
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:
– 109fsRMS phase jitter (typ.)
– <0.7psRMS 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
March 2011
M9999-030211-E
hbwhelp@micrel.com or (408) 955-1690
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| SY89113UMG | 功能描述:IC CLK BUFF MUX 2:12 1GHZ 44-MLF RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘緩沖器，驅(qū)動(dòng)器 系列:Precision Edge® 標(biāo)準(zhǔn)包裝:1 系列:HiPerClockS™ 類型:扇出緩沖器（分配），多路復(fù)用器 電路數(shù):1 比率 - 輸入:輸出:2:18 差分 - 輸入:輸出:是/無(wú) 輸入:CML，LVCMOS，LVPECL，LVTTL，SSTL 輸出:LVCMOS，LVTTL 頻率 - 最大:250MHz 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:- 其它名稱:800-1923-6 |
| SY89113UMG TR | 功能描述:IC CLK BUFF MUX 2:12 1GHZ 44-MLF RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘緩沖器，驅(qū)動(dòng)器 系列:Precision Edge® 標(biāo)準(zhǔn)包裝:1 系列:HiPerClockS™ 類型:扇出緩沖器（分配），多路復(fù)用器 電路數(shù):1 比率 - 輸入:輸出:2:18 差分 - 輸入:輸出:是/無(wú) 輸入:CML，LVCMOS，LVPECL，LVTTL，SSTL 輸出:LVCMOS，LVTTL 頻率 - 最大:250MHz 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:- 其它名稱:800-1923-6 |
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