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SY88343BLEY

更新时间： 2024-11-01 03:22:11
品牌 Logo 应用领域
麦瑞 - MICREL 电信集成电路放大器光电二极管异步传输模式ATM
页数 文件大小 规格书
10页 307K
描述
3.3V, 3.2Gbps CML Limiting Post Amplifier with High Gain TTL Loss-of-Signal

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SY88343BLEY 数据手册

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SY88343BL  
3.3V, 3.2Gbps CML Limiting Post Amplifier  
with High Gain TTL Loss-of-Signal  
General Description  
Features  
The SY88343BL low-power limiting post amplifier is  
designed for use in fiber-optic receivers. The device  
connects to typical transimpedance amplifiers (TIAs)  
that are AC-coupled. The linear signal output from TIAs  
can contain significant amounts of noise and may vary  
in amplitude over time. The SY88343BL quantizes these  
signals and outputs CML-level waveforms.  
• Single 3.3V power supply  
• DC to 3.2Gbps operation  
• Low-noise CML data outputs  
• High gain LOS  
• Chatter-free Open-Collector TTL Loss-of-Signal  
(LOS) output with internal 4.75kΩ pull-up resistor  
• TTL /EN input  
• Programmable LOS level set (LOSLVL  
• Ideal for multi-rate applications  
The SY88343BL operates from a single +3.3V power  
supply, over temperatures ranging from –40oC to +85oC.  
With its wide bandwidth and high gain, signals with data  
rates up to 3.2Gbps and as small as 5mVPP can be  
amplified to drive devices with CML inputs or AC-  
coupled CML/PECL inputs.  
)
• Available in a tiny 10-pin EPAD-MSOP and 16-pin  
MLF® package  
The SY88343BL generates a high-gain loss-of-signal  
(LOS) open-collector TTL output. The LOS function has  
a high gain input stage for increased sensitivity. A  
programmable loss-of-signal level set pin (LOSLVL) sets  
the sensitivity of the input amplitude detection. LOS  
asserts high if the input amplitude falls below the  
threshold set by LOSLVL and de-asserts low otherwise.  
The enable bar input (/EN) de-asserts the true output  
signal without removing the input signal. The LOS  
output can be fed back to the /EN input to maintain  
Applications  
• APON, BPON, EPON, and GPON  
• Gigabit Ethernet  
• Fibre Channel  
• OC-3 and OC-12/24 SONET/SDH  
• High-gain line driver and line receiver  
Markets  
output stability under  
Typically, 3.5dB LOS hysteresis is provided to prevent  
chattering.  
a
loss-of-signal condition.  
• FTTP  
• Optical transceivers  
• Datacom/Telecom  
• Low-gain TIA interface  
• Long reach FOM  
Datasheet and support documentation can be found on  
Micrel’s web site at: www.micrel.com.  
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  
M9999-021707-B  
hbwhelp@micrel.com or (408) 955-1690  
February 2007  
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SY88343BLEY 替代型号

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