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SY88347DLEYTR

更新时间： 2024-11-06 03:08:39
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
9页 279K
描述
3.3V, 3.2Gbps PECL Limiting Post Amplifier with High-Gain TTL Loss-of-Signal

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SY88347DLEYTR 数据手册

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SY88347DL  
3.3V, 3.2Gbps PECL Limiting Post Amplifier  
with High-Gain TTL Loss-of-Signal  
General Description  
Features  
The SY88347DL low-power limiting post amplifier is  
designed for use in fiber-optic receivers. The device  
connects to typical transimpedance amplifiers (TIAs).  
The linear signal output, from TIAs, can contain  
significant amounts of noise and may vary in amplitude  
over time. The SY88347DL quantizes these signals and  
outputs PECL-level waveforms.  
• Single 3.3V power supply  
• 155Mbps to 3.2Gbps operation  
• Low-noise PECL data outputs  
• High-gain LOS output  
• Chatter-free Open-Collector TTL Loss-of-Signal  
(LOS) output  
• TTL /EN input  
• Programmable LOS level set (LOSLVL  
• Ideal for multi-rate applications  
The SY88347DL 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 PECL inputs.  
)
•
Available in a tiny 10-pin EPAD-MSOP  
Applications  
• APON, BPON, EPON, GEPON, and GPON  
• Gigabit Ethernet  
• 1X and 2X Fibre Channel  
• SONET/SDH:OC-3/12/24/48 – STM 1/4/8/16  
• High-gain line driver and line receiver  
The SY88347DL 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 sets 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  
Markets  
• FTTP  
output stability under  
a
loss-of-signal condition.  
• Optical transceivers  
• Datacom/Telecom  
• Low-gain TIA interface  
• Long reach FOM  
Typically, 3.3dB LOS hysteresis is provided to prevent  
chattering.  
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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SY88347DLEYTR 替代型号

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