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| 型号： | SY54020RMGTR |
| 厂商： | MICREL INC |
| 元件分类： | 时钟及定时 |
| 英文描述： | LOW SKEW CLOCK DRIVER, QCC16 |
| 封装： | 3 X 3 MM, LEAD FREE, MLF-16 |
| 文件页数： | 1/14页 |
| 文件大小： | 550K |
| 代理商： | SY54020RMGTR |
SY54020R
Low Voltage 1.2V/1.8V/2.5V CML 1:4 Fanout
Buffer with /EN and Fail-Safe Input
3.2Gbps, 2.5GHz
Precision Edge is a registered trademark of Micrel, Inc.
MLF and MicroLeadFrame are registered trademarks of Amkor Technology.
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 2009
M9999-041409-A
hbwhelp@micrel.com or (408) 955-1690
General Description
The SY54020R is a fully differential, low voltage
1.2V/1.8V/2.5V CML 1:4 Fanout Buffer with active-low
Enable (/EN) and Fail-Safe Input (FSI). The Enable is
synchronous
so
that
the
outputs
will
only
be
enabled/disabled when they are already in the LOW
state. This avoids any chance of generating a runt clock
pulse when the device is enabled/disabled as can
happen with an asynchronous control. When this device
is used as a clock fanout, disabling the downstream
clock may reduce system power. FSI is a special circuit
designed to sense the amplitude of the input signal and
to latch the output when an invalid or no signal is
present at the input. The SY54020R can process clock
signals up to 2.5 GHz or data patterns up to 3.2Gbps.
The differential input includes Micrel’s unique, 3-pin
input termination architecture that interfaces to LVPECL,
LVDS or CML differential signals as small as 100mV
(200mVpp) without any level-shifting or termination
resistor networks in the signal path. For AC-coupled
input
interface
applications,
an
internal
voltage
reference is provided to bias the VT pin. The outputs are
CML, with extremely fast rise/fall times guaranteed to be
less than 100ps.
The SY54020R operates from a 2.5V ±5% core supply
and a 1.2V, 1.8V or 2.5V ±5% output supply and is
guaranteed over the full industrial temperature range
(–40°C to +85°C).
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Functional Block Diagram
Precision Edge
Features
1.2V/1.8V/2.5V CML 1:4 Fanout Buffer with FSI
Active-low Enable (/EN) input to disable the outputs
Guaranteed AC performance over temperature and
voltage:
– DC-to > 3.2Gbps Data throughput
– DC-to > 2.5GHz Clock throughput
– <400 ps propagation delay (IN-to-Q)
– <20ps within-device skew
– <100 ps rise/fall times
Ultra-low jitter design
– <1psRMS cycle-to-cycle jitter
High-speed CML outputs
2.5V ±5% V
CC , 1.2/1.8V/2.5V ±5% VCCO power supply
operation
Industrial temperature range: –40°C to +85°C
Available in 16-pin (3mm x 3mm) MLF package
Applications
SONET clock and data distribution
Fibre Channel clock and data distribution
Gigabit Ethernet clock and data distribution
Markets
Storage
ATE
Test and measurement
Enterprise networking equipment
High-end servers
Access
Metro area network equipment
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SY54023AR | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Low Voltage 1.2V/1.8V CML 2x2 Crosspoint Switch 3.2Gbps, 3.2GHz |
| SY54023ARMG | 功能描述:模拟和数字交叉点 IC 1.2/1.8V Low Voltage CML 2x2 Crosspoint Switch RoHS:否 制造商:Micrel 配置:2 x 2 封装 / 箱体:MLF-16 数据速率:10.7 Gbps 输入电平:CML, LVDS, LVPECL 输出电平:CML 电源电压-最大:3.6 V 电源电压-最小:2.375 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 产品:Digital Crosspoint 封装:Tube |
| SY54023ARMG TR | 功能描述:模拟和数字交叉点 IC 1.2/1.8V Low Voltage CML 2x2 Crosspoint Switch RoHS:否 制造商:Micrel 配置:2 x 2 封装 / 箱体:MLF-16 数据速率:10.7 Gbps 输入电平:CML, LVDS, LVPECL 输出电平:CML 电源电压-最大:3.6 V 电源电压-最小:2.375 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 产品:Digital Crosspoint 封装:Tube |
| SY54023ARMGTR | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Low Voltage 1.2V/1.8V CML 2x2 Crosspoint Switch 3.2Gbps, 3.2GHz |
| SY54023R | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Low Voltage 1.2V/1.8V CML 2x2 Crosspoint Switch with Fail-Safe Inputs, 3.2Gbps, 2.5GHz |
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