参数资料
| 型号： | SY84113BUMG TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC LIMITING POST AMP 16-QFN |
| 标准包装： | 1 |
| 类型： | 后置放大器 |
| 应用： | 光纤学网络 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VFQFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN（3x3） |
| 包装： | 标准包装 |
| 其它名称： | 576-3898-6 |
SY84113BU
Low Power 2.5V 1.25Gbps Limiting Post
Amplifier with Ultra Wide LOS Range
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 SY84113BU low power limiting post amplifier is
designed for use in fiber-optic optical modules for
multirate applications up to 1.25Gbps. The device
connects to a typical transimpedance amplifier (TIA) and
can produce output signals to CML-level waveforms.
Intended for the GbE and Fibre Channel applications,
the SY84113BU offers a wide LOS range. It is able to
detect input signals for as low as 5mVpp and as high as
100mVpp. The SY84113BU is intended to be used in
AC-coupled input applications.
The SY84113BU generates a Loss-of-Signal (LOS)
open-collector TTL output. 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 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 implement the squelch function that maintains output
stability under a loss-of-signal condition.
The SY84113BU operates on a single 2.5V power
supply and offers ultra low power consumption. This
device is perfectly suited to meet the stringent power
requirements of the CSFP/SFP/SFF optical modules.
All support documentation can be found on Micrel’s web
site at: www.micrel.com.
Features
Ultra wide LOS Range (5mVpp to 100mVpp)
Single 2.5V power supply
Ultra low power consumption (55mW typ)
125Mbps to 1.25 Gbps operation
Low-noise CML data outputs
TTL /EN input
Programmable LOS level (LOSLVL)
Internal 50Ohm termination
Available in a tiny 3mm x 3mm QFN package
Applications
Gigabit Ethernet
Fibre Channel
GEPON
Markets
Datacom/telecom
Compact SFP/SFF Optical transceiver
SFP/SFF Optical transceiver
_________________________________________________________________________________________________________
Typical Application
January 2011
M9999-011711-A
hbwhelp@micrel.com or (408) 955-1690
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