Datasheet > SY88149CL

SY88149CL

更新时间： 2024-11-06 14:54:27

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
10页	305K
描述
The SY88149CL is a high-sensitivity limiting post amplifier designed for use in fiber-optic receiv

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SY88149CL 数据手册

SY88149CL

3.3V, 1.25Gbps PECL Limiting Post

Amplifier w/High Gain TTL Signal Detect

General Description

Features

The SY88149CL is a high-sensitivity limiting post

amplifier designed for use in fiber-optic receivers. These

devices connect 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 SY88149CL quantizes these signals and

outputs PECL level waveforms.

∑ Single 3.3V power supply

∑ Fast SD enable/disable time

∑ 622Mbps to 1.25Gbps operation

∑ Low-noise PECL data outputs

∑ High-gain SD

∑ Chatter-free Open-Collector TTL signal detect (SD)

output with internal 4.75kΩ pull-up resistor

The SY88149CL operates from a single +3.3V power

supply, over temperatures ranging from –40^oC to +85^oC.

With its wide bandwidth and high gain, signals with data

rates up to 1.25Gbps, and as small as 5mV_pp, can be

amplified to drive devices with PECL inputs.

∑ TTL EN input

∑ Programmable SD level set (SD_LVL

)

∑ Available in a tiny 10-pin MSOP package

The SY88149CL generates a high-gain signal-detect

(SD) open-collector TTL output. The SD function has a

high gain input stage for increased sensitivity. A

programmable Signal Detect level set pin (SD_LVL) sets

the sensitivity of the input amplitude detection. SD

asserts high if the input amplitude rises above the

threshold set by SD_LVLand de-asserts low otherwise.

The enable input (EN) de-asserts the true output signal

without removing the input signal. The SD output can be

fed back to the EN input to maintain output stability

under a loss-of-signal condition. Typically, 3.4dB SD

hysteresis is provided to prevent chattering.

Applications

∑ GE-PON/GPON/EPON

∑ Gigabit Ethernet

∑ 1062Mbps Fibre Channel

∑ OC-12/24 SONET/SDH

∑ High-gain line driver and line receiver

∑ Low-gain TIA interface

Markets

∑ FTTH/FTTP

All support documentation can be found on Micrel’s web

site at: www.micrel.com.

∑ Datacom/Telecom

∑ Optical transceiver

M9999-011609-C

hbwhelp@micrel.com or (408) 955-1690

January 2009

12 3 4 5 6 7...10

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与SY88149CL相关器件

型号	品牌	获取价格	描述	数据表
SY88149CL_07	MICREL	获取价格	3.3V, 1.25Gbps PECL Limiting Post Amplifier w/High Gain TTL Signal Detect
SY88149CL_09	MICREL	获取价格	3.3V, 1.25Gbps PECL Limiting Post
SY88149CLKG	MICREL	获取价格	3.3V, 1.25Gbps PECL LIMITING POST AMPLIFIER W/HIGH GAIN TTL SIGNAL DETECT
SY88149CLKGTR	MICREL	获取价格	3.3V, 1.25Gbps PECL LIMITING POST AMPLIFIER W/HIGH GAIN TTL SIGNAL DETECT
SY88149CLKG-TR	MICROCHIP	获取价格	ATM/SONET/SDH SUPPORT CIRCUIT, PDSO10
SY88149HAL	MICREL	获取价格	1.25Gbps Burst-Mode Limiting Amplifier with Ultra-Fast Signal Assert Timing
SY88149HAL	MICROCHIP	获取价格	The SY88149HAL is a high-sensitivity, burst-mode capable, limiting-post amplifier designed
SY88149HALMG	MICREL	获取价格	1.25Gbps Burst-Mode Limiting Amplifier with Ultra-Fast Signal Assert Timing
SY88149HALMGTR	MICREL	获取价格	ATM/SONET/SDH SUPPORT CIRCUIT, QCC16, 3 X 3 MM, LEAD FREE, QFN-16
SY88149HL	MICREL	获取价格	3.3V 1.25Gbps Burst-Mode Limiting Amplifier with Ultra-Fast Signal Assert Timing

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